The Earth Is Wobbling: The Precession of the Equinoxes

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  • Опубликовано: 10 дек 2024

Комментарии • 628

  • @ItsJustAstronomical
    @ItsJustAstronomical  2 года назад +19

    I made a mistake in this video. I made another video to correct my mistake: ruclips.net/video/-QT1rsr9U44/видео.html

    • @meowchat6175
      @meowchat6175 Год назад

      Nancy Lieder was right all along!

    • @dumbtubenis
      @dumbtubenis Год назад

      it was not first discovered by hipparcus. indian texts like suryasidhantha already covered this 1000 of years before hipparcus

    • @ItsJustAstronomical
      @ItsJustAstronomical  Год назад

      The best evidence is that the Surya Siddhanta was written centuries after Hipparchus, not before: rajarammohanroy.medium.com/s%C5%ABrya-siddh%C4%81nta-was-not-written-over-14-000-years-ago-1591a02a293e

    • @powaowa1
      @powaowa1 27 дней назад

      You made several that I know about it, the great year is 25920 years no 26000. This is extremely important to get right, because it relates to shamanic ressonance, 432hz, I will explain to you if you respond and care to hear about it.

    • @Christinschrader-hd4io
      @Christinschrader-hd4io 16 дней назад

      😂

  • @StellarNemesis
    @StellarNemesis 5 лет назад +96

    That last sarcastic part was awesome!!😂😂😂

    • @thesickbeat
      @thesickbeat 16 дней назад

      He's not being sarcastic, he just loves astrology

  • @SPNGEBB
    @SPNGEBB 4 года назад +17

    You visual representation of everything is just mind-blowing.

  • @johncgibson4720
    @johncgibson4720 5 лет назад +31

    Thank god someone finally puts the word "precession" on this calendar thing, instead of saying "the way the earth moves".

    • @richardschiller7803
      @richardschiller7803 4 года назад +3

      half right half wrong, axis precesses in, not stars; so since precession means to go forward, seasons slip backward, stars do not precess forward. Spring season slipped back from March 20 to March 10, the stars of March 10 is not a sphere that moved forward to March 20. Like the electricity books now in school that talks about vacant electron-holes moving backward.

  • @physicshuman9808
    @physicshuman9808 2 года назад +18

    Fun fact:
    When Hipparchus
    Developed trigonometry, he was one of the first people to find evidence that the planets don’t move in perfect circles and he actually thought that was an error in his theory, and threw it out the window

  • @rethinkexistence4807
    @rethinkexistence4807 6 лет назад +53

    I love the details and the effort you put into it. Great video. You deserve many more subscribers! Good luck!

  • @ALIMUNTH
    @ALIMUNTH 7 лет назад +260

    The Egyptians found out about the Precession of the Equinoxes, and Americans still think earth is flat.

    • @larryscott3982
      @larryscott3982 7 лет назад +26

      ALI MUNTH
      There are only a tiny few that are Flat Earth club members. They seem to occupy a disproportionate presence on YT, but I've never met a flat earth club member.
      So it's not "Americans", but a very small international cluster. And even at that, most Flat Earth club members really believe in Flat Earth, it's just an act.

    • @richardschiller7803
      @richardschiller7803 7 лет назад +14

      Americans love teaching people to defy anyone or everyone because that's what they think defines freedom. They think they need enforced American law to force people to obey (so preventing chaos) when in fact USA is laws giving people rights to be chaotic

    • @learygains8016
      @learygains8016 7 лет назад

      ALI MU

    • @larryscott3982
      @larryscott3982 7 лет назад

      Chris Daldy-Rowe
      Bible thumpers are radical extremists.
      But there's a lot of FE whack jobs from many corners of society. But FE is fringe.

    • @larryscott3982
      @larryscott3982 7 лет назад +3

      Joel Harris
      But Polaris isn't very far away.
      I have a hard copy star chart from 1900. And in the textbook there is a short comment on the declination of Polaris is increasing. In 1900 Polaris was 1.15° from north. Today Polaris 0.73° from true north.
      Well the chart is now visibly different. Polaris is closer, and in 2050 it'll be at its minimum of 0.5°.

  • @samaiatraforti9060
    @samaiatraforti9060 3 года назад +8

    Oh my god I LOVE YOUR VIDEOS! They’re funny, informative and SO well graphically presented!!! Thankyou so so much 🙏🏼✨

  • @linaribaldi3829
    @linaribaldi3829 21 день назад +1

    I finally understood why there's no correspondence between the star you can see in the sky (zodiac sign) and the time of the year you're in! Thanks!

  • @markeshenoma5576
    @markeshenoma5576 5 лет назад +19

    Why aren't there more videos like this out there. The lack of information I have with the alignment of the Earth's axis and such is killing me!

  • @emilyakalbun5540
    @emilyakalbun5540 3 года назад +39

    I’ve believed in astrology for 10 years and I’m trying to abandon it bc I realize it’s been hurting me. This video, made me feel better. Thank you 😌

    • @deejay1040
      @deejay1040 3 года назад +5

      If only more females would realize this sooner

    • @emilyakalbun5540
      @emilyakalbun5540 3 года назад +1

      Yeah it’s upsetting to see how ubiquitous it is, I feel like it seriously needs to stop.

    • @redfullmoon
      @redfullmoon 3 года назад +10

      This is a weird comment. Astrology is just the language of the celestial skies. The amount of people who think it's like a religion to believe in as opposed to a tool to illuminate, like a philosophical school of thought, is disturbing.

    • @emilyakalbun5540
      @emilyakalbun5540 3 года назад

      @@redfullmoon well its often vulnerable people who are driven to superstition. I agree astrology is bullshit, and I am glad I no longer believe in it.

    • @markecheverria1531
      @markecheverria1531 2 года назад +4

      looks like you never truly undestood astrology :(

  • @Bharatabharati
    @Bharatabharati 2 года назад +2

    Indian Vedic scriptures Vedanga jyotisha and surya siddhanta 1400 BCE already mentions it. But just the difference is in the cycle. They mentioned 25,700 year instead of 26,000 year. It also mentions Abhijit will be the new pole star in 14000 AD.

  • @messenjah71
    @messenjah71 4 года назад +9

    How can it have been discovered by Hipparchus when the ancients encoded the precession into their structures?

    • @paulthomas963
      @paulthomas963 8 месяцев назад

      The ancients recorded the cycles. Copernuis then Newton gave it a physical explanation (which is wrong but still taught as a fact). I do wonder if and HOW the ancients understood it better than we do. We fudge the math equations out of observations and they still don't work.

  • @darkwolf7589
    @darkwolf7589 2 месяца назад +1

    the visuals at the beginning helped SO MUCH

  • @BloobleBonker
    @BloobleBonker 5 лет назад +3

    Haha! Great concept to put you standing at the pole and equator! As always great graphics and script.

  • @ElenaAshe
    @ElenaAshe Год назад +2

    Just got to your channel. You are making great videos! New subscriber.

  • @astropartydan
    @astropartydan 2 года назад +3

    This video is amazing. Thank you! The ending had me almost falling off my chair laughing! 😂 I'm using this in an astronomy course I'm teaching thank you!

  • @comotempera4059
    @comotempera4059 3 года назад +2

    The most beautiful scientific but also entertaining video I have ever seen. Of course, the exact zodiac prediction at the end also counts.

  • @kevinrosero9723
    @kevinrosero9723 7 месяцев назад +1

    Best animation I've seen explaining the precession

  • @extraterrestrial7424
    @extraterrestrial7424 Год назад +1

    Cosmic motions in all their complexity are so ludicrously complicated, I cannot stop wondering how physicists responsible for cosmic probes, rockets and similar stuff get their calculations right most of the time.

  • @ArathiJNair
    @ArathiJNair 4 года назад +1

    Hey.. Your videos are great and informative..
    But your presentation is what really shines out 🌟🌟🌟

  • @npc_087
    @npc_087 Год назад

    Great video! Thanks for the explanation. Only one remark: It seems like you mentioned Hipparchus had discovered that the Earth's axis is moving. However, there are many sources which suggest that this phenomenon was discovered much earlier in India.

  • @danielray5571
    @danielray5571 6 лет назад +14

    Precession was known about by civilizations long, long before Hipparchus.

    • @wiolantsungazer7665
      @wiolantsungazer7665 5 лет назад +5

      Yes.. Just thinking about Göbekli Tepe from 11.500 years ago!!

    • @richardschiller7803
      @richardschiller7803 4 года назад

      Yes measured from global Flood 2370bc, at Babylon 1626bc as 6 days in 744 years.
      And at Egypt in 1570bc as 6 days in 800 years, where Egyptian calendar inaugurated Year 340 in 2030bc July 17 as Pamenot 1
      verifying 3 days in 400 years in Egyptian dates 2030-1630bc; and Adam's 400 of his 2000-2400am (2026-1626bc).

  • @aven_snow
    @aven_snow 3 года назад +3

    “Celebrating Christmas in the middle of summer”
    *laughs in Australian*

    • @masterxyr
      @masterxyr 3 года назад

      not for long mate not for long

  • @Macorian
    @Macorian 11 месяцев назад +2

    There are a few problems with this.
    1. The gravitational model has so many problems, it’s difficult to harmonise it even with the moon being where it is or behaving as it does. The wobbel is an assumption, there can be other reasons for the apparent precession. Certainly, things have to be simplified, but is quite a crime of omission. Especially as all statements are made as if ascertained fact, which they aren't at all.
    2. At least one star, namely Sirius, seems not to take part in this, which cannot be explained by the cuttent theory.
    3. It was not H. who first observed precession. In fact, he didn’t. We know that, bc he gives no measurements by himself. If you read his numbers carefully, you’ll notice, that they correspond to observations made in Mesopotamia and Egypt. Neugebauer sadly declared that the Ancient Babyloninans did not no precession. We today know that this is quite wrong. They did. And so did the Egyptians. They used Sirius, however, that barely moves, precisely bc it’s an exception.
    4. Astrology very weak. If you use the Sidereal system, the sun is not in Capricorn at New Year, but in Sagittarius. Only in the Tropical system it’s still in Capricorn.
    5. Caesar got his calendar fixed by Egyptians he brought back to Rome
    6. Your take on Astrology is embarrassing. I hope you do know a bit more about Astronomy than the nonsense you say about Astrology. Really, even the basis is incorrect and even for those believing in astral determinism (very few do) your statements are off.

    • @ItsJustAstronomical
      @ItsJustAstronomical  11 месяцев назад

      1. The gravitational model is solid. I don't know what issues you're talking about.
      2. Sirius precesses like all the other stars:
      astronomy.stackexchange.com/questions/45442/is-the-claim-that-the-star-sirius-does-not-precess-like-other-stars-true
      Yes, I was having some fun with astrology, but my horoscope seems pretty accurate.

  • @JamaaLS
    @JamaaLS Месяц назад +1

    0:27 I think the ancient Egyptians discovered this long before HIPPARCHUS.

    • @ItsJustAstronomical
      @ItsJustAstronomical  Месяц назад +1

      That claim has been made, but there's no hard evidence to support it: en.wikipedia.org/wiki/Axial_precession#Ancient_Egyptians

    • @JamaaLS
      @JamaaLS Месяц назад +1

      @@ItsJustAstronomical The Egyptians encoded the dimensions of the earth into the dimensions of the pyramids. They could not have done so without knowing of the earths procession. The great pyramid is almost perfectly aligned to true north. There are so many clues that mainstream archaeologists ignore that show the ancients knew exactly what we know today if not more.

  • @SwaaallaGE
    @SwaaallaGE 6 месяцев назад +1

    If you learn something new, it was a worthwhile day.

  • @johncartwright5179
    @johncartwright5179 3 года назад +3

    I like your light-hearted projection, and historical record-based approach to this! Thanks. A compact (short) lecture, makes me stay awake and pay attention. Are you a high school physics teacher?

    • @ItsJustAstronomical
      @ItsJustAstronomical  3 года назад +2

      Thanks! No, I'm not a teacher. I'm a software engineer.

    • @vaibhavdlxit1050
      @vaibhavdlxit1050 3 года назад

      @@ItsJustAstronomical U can just never be a teacher and interesting at the same time.

    • @MethewMeekin
      @MethewMeekin Год назад

      ​@@vaibhavdlxit1050 dutiful 🐣 O'Dell ladyship 🈺 encoding ₱

  • @bapgirl1
    @bapgirl1 4 года назад +1

    This made everything so much easier to understand.. thank you!!

  • @neoshenlong
    @neoshenlong 5 лет назад +1

    The ending was amazing, but I do have a question. Is astrology accurate? Now of course I don't mean accurate in predicting your future, is it accurate in saying that I am a sagitarius because I was born between november 23 and December 21? If the earths position relative to the stars moves ever so slightly shouldn't that date change at least a day during a human lifetime? Not to mention, when were the zodiac dates decided? As far as I know they could've been set in stone 400 years ago and by this point we are truly facing Sagittarius in January or something.

    • @ItsJustAstronomical
      @ItsJustAstronomical  5 лет назад

      You're totally right. They were set a long time ago and they are slightly off from when they were originally set. This article explains more: www.livescience.com/4667-astrological-sign.html

  • @Jezcrusaderink
    @Jezcrusaderink 2 года назад +1

    This type of content is so underrated

  • @jashyboo
    @jashyboo 6 месяцев назад +1

    This was an amazing animation and explanation thank you

  • @KSL042
    @KSL042 3 года назад +1

    Dude I just found you and I love this !!!!

    • @KSL042
      @KSL042 3 года назад

      Holy crap you already liked it !!!!!!! Honestly gonna go binge your videos my brain thrirsts knowledge thank you !!!!!!

  • @danandreipascual625
    @danandreipascual625 5 лет назад +14

    flat earthers explain this lmfao

    • @deniserothwell6325
      @deniserothwell6325 5 лет назад +1

      Dan Andrei Pascual So in one breath they are saying you would feel the a car speeding up to take a turn and yet the earth is speeding up and we don’t feel that!

    • @deniserothwell6325
      @deniserothwell6325 5 лет назад

      Billy Bob Yes they are total morans. Contradict themselves all the time!

    • @ArisaemaTriphyllum
      @ArisaemaTriphyllum 4 года назад

      @Billy Bob I've actually flown around the planet, lol. Explain THAT?

    • @ArisaemaTriphyllum
      @ArisaemaTriphyllum 4 года назад +4

      @Billy Bob lol. I'm a geologist. And I've not just flown from one continent to another, I've flown AROUND the planet. I literally study the planet.

    • @ronalddaub7965
      @ronalddaub7965 4 года назад

      @@deniserothwell6325 because you know nothing and cannot imagine mass or celestial mechanics especially mass

  • @rawdawgpendants5490
    @rawdawgpendants5490 6 лет назад +1

    Yes i observe the sun set more north in summer and more south in winter. Plus the big dipper is visible when i open my door. In summer it appears at night handle up n dipper down in beginning of night and rotates handle to left and levels out late night. In winter it is appearing level handle on left. And rotates handle down late at night.

  • @kellybennett8011
    @kellybennett8011 2 года назад +1

    This video is very informative. Thank you for your efforts.

  • @JM-vh7oc
    @JM-vh7oc 7 лет назад +4

    Well done - best explanation I've ever heard for axis shift and calendar timing.

  • @dennislarson69
    @dennislarson69 7 лет назад

    great video....love the plug at the end...subscribed without hesitation

  • @asopher
    @asopher Год назад +1

    Watching this video was like a fever dream in the best way possible

  • @hanrealistic
    @hanrealistic 4 года назад +1

    how did that guy compared the positions of the stars, 100 years apart?

    • @Revealed2705
      @Revealed2705 2 года назад

      He wasn't alive before 100 years and neither the author mentioned about whom the person followed for figuring out that change.

    • @hanrealistic
      @hanrealistic 2 года назад

      @@Revealed2705 No. It just a made up Heliocentric story. These stories relies on majorities Ignorance. They simply ignore to ask questions and acccept their reality as they are presented..Look at the Galileo's Telescope :))). You phone is much better then that 4x junk and yet he discovered the Solar System..:))) History is fabricated, and the evidences are all over the place.

  • @forestsoceansmusic
    @forestsoceansmusic 6 лет назад +2

    Good vid, but please point out how the 26 mile equatorial bulge is only one-thousandth the size of the Earth's circumference, so the Earth is just as spherical as a billiard ball.

    • @yeshuadot630
      @yeshuadot630 3 года назад

      It isn't as spherical as that. It does not spin like a homogeneous sphere would, and this is easily tested by measuring the moment of inertia. That measurement clearly indicates how the earth wobbles in its axis, because it doesn't spin like a homogeneous sphere would. It tells us that mass is distributed differently as varying locations on earth

    • @yeshuadot630
      @yeshuadot630 3 года назад

      You want a better example of what you think the earth is like? Look at jupiter

  • @kevinbennett1394
    @kevinbennett1394 19 дней назад

    Worth clarifying: the Zodiac he refers to is the Sidereal Zodiac, used mostly in the East by Vedic Astrology rather than Western, though some Astrologers of the West have begun to look at this Zodiac. Most Astrologers in the West refer to the Topical Zodiac, which is Seasonal rather than based on the Constellations (as he mentions!) The Tropical Zodiac is fixed to the solstices and equinoxes and is unchanging with time. This means that Aries, for example is defined by the first 30° of the ecliptic following the vernal equinox, Cancer the first 30° following the Summer Solstice, Libra the first 30° following the Autumnal Equinox, and Capricorn the first 30° following the Winter Solstice. Aside from this, the Zodiacal Signs are 30° of the ecliptic each. The Constellational boundaries we know today, even if they had been the exact same as they were 5000 years ago, would be far different. Virgo is the largest Ecliptic Constellation encompassing almost 14% of the Ecliptic, whereas Scorpius (the Constellation of the Sign Scorpio) is less than 2% (approximately). The constellations were used in ancient times as reference points to the Signs, but they are not the Zodiac itself. The separation between Sidereal and Tropical astrology occurred in the years following the discovery of the precession, and remains in place today. Sidereal and Tropical Astrology both have their benefits in terms of self discovery, but are very different practices.

  • @blackopal3138
    @blackopal3138 3 года назад +2

    Very interesting. I came here bc something is off. Either our calendar, or our calculations, or the precession is changing speed. I have been been becoming aware of it over a year now. Today, Jan.2, 2021, it is darker, at an earlier time, than it was on Dec.21. Guaranteed. I'd like to know what's going on. :) peace

    • @paulthomas963
      @paulthomas963 8 месяцев назад +1

      The rate of precession is changing. They don't have an explanation and I wouldn't take whatever they pull out of their butts as to why seriously. The earth doesn't wobble because the entire solar system is doing it.

  • @GrugBug-f7j
    @GrugBug-f7j Год назад

    Solid!
    Top KEK!
    Peace be with you.

  • @michaeldonnelly2977
    @michaeldonnelly2977 5 лет назад +6

    One quick correction to your video. At 2:19 you say “In a year the SUN moves through all the signs of the zodiac.” I think you meant to say in a year the EARTH moves through all of the signs of the zodiac. The sun stays fixed in your animation.
    You make outstanding videos by the way. Keep up the good work!

    • @gfreaksays
      @gfreaksays 5 лет назад +1

      Actually he is right, because what he mean is the SUN moves through all the signs of the zodiac from our point of view here on EARTH.

    • @mr.evasion
      @mr.evasion 5 лет назад

      The Sun is in Capricorn from January 19 to February 15 around about now, astronomically speaking.
      So, if you were born in January, chances are you'll be a Sagittarius.
      Astrology will tell you differently though.

    • @Ddub1083
      @Ddub1083 4 года назад

      Hes right... Moving through the signs of the zodiac is done by the SUN as viewed from earth. We cannot see the earth's motion through the night sky because we are necessarily on the earth. We can only see other objects going through the sky.

  • @SwampDonkey64
    @SwampDonkey64 6 лет назад +2

    This is also the reason for the Sahara desert. The Sahara desert changes from a desert to a marsh wetland depending on the wobble of the earth. That means the Sierra desert will be green again someday. Unfortunately none of us will be alive to see it. Perhaps in generations to come and man hasn’t destroyed himself humans will see the desert become green again.

  • @ymane1155
    @ymane1155 Год назад

    The last part was the most creative thing i saw this year

  • @victorleopoldoesilva768
    @victorleopoldoesilva768 6 лет назад +1

    great content brother!! It doesnt make any sense that this video has only 60k views.

  • @Yuvaan20003
    @Yuvaan20003 3 года назад +1

    Simply outstanding.. Hats off sir

  • @sabrinanascimento5248
    @sabrinanascimento5248 6 лет назад

    Great and informative video that is easy to understand and not patronizing because I am not an Astronomer. Amusing. Enough to keep my interest.

  • @atbing2425
    @atbing2425 4 года назад +3

    Absolutely phenomenal video! Besides the correction on why axial precession happens (which you already corrected) you forgot that due to axial precession, the constellations are already about a month off, scorpio isn't around November (it was around 1 ad) now it is around december... Meaning around 15,000 ad geminis will be born around January, yes you probably read the wrong horoscope your entire life... Astrology is complete nonsense.

    • @dallassegno
      @dallassegno 9 месяцев назад

      You don't know what you're talking about

  • @midlandsmusomusicschool
    @midlandsmusomusicschool Год назад

    I simply have to like this video, very informative and entertaining!

  • @DanaArtistii
    @DanaArtistii Год назад +1

    WTF this video is genius!
    Okay back to that assignment for my geodesy master's degree now...

  • @최강재-y9c
    @최강재-y9c 2 года назад +2

    It almost made me cry. All the educations I had 'suffered' from the schools were the torture compare to this vid.
    It is amazing. Thank you Thank you Thank you.

  • @BeckettSong
    @BeckettSong 6 лет назад +1

    North Americans will celebrate Christmas in summer in 15,000 AD(in theory). But currently it's South Americans, South Africans, Australians, and New Zealanders which celebrate Christmas in summer.

  • @E23Dav
    @E23Dav Месяц назад +1

    Woa that horoscope was remarkably accurate

  • @asiastormy8728
    @asiastormy8728 2 года назад

    That wobble also effect temperature change as there is a wobble with the path of that oval shape around the sun.

  • @CarlosRodriguez-mx2xy
    @CarlosRodriguez-mx2xy 2 года назад +1

    Yes, we do. We love your video.

  • @yoshbui2312
    @yoshbui2312 7 месяцев назад

    At 2:15, how can you be sure that it’s Capricorn? Obviously you cannot see the constellation behind the sun due to the sun’s light. Wouldn’t it be better to use the cancer sign instead since you can see and verify the cancer constellation at night?

  • @bulatokud
    @bulatokud Год назад +1

    Just leaving out the fact that the earths "wobbling" does only affect the stars and not the other planets. Does that mean that the whole system "wobbles" after the earth?

    • @ItsJustAstronomical
      @ItsJustAstronomical  Год назад

      The change in the axis affects the position of both the stars and planets. And each planet's axis can change too.

    • @paulthomas963
      @paulthomas963 8 месяцев назад

      The earth doesn't wobble but yes the entire solar system is actually precessing. Some of the stars are rising with us too. This is impossible in the standard model theory.

  • @teddyjones3055
    @teddyjones3055 5 лет назад

    0:24 does the Earth's axis actually trace a circle going counter-clockwise when viewed from the North Star? I thought it traced the circle clockwise.

    • @ItsJustAstronomical
      @ItsJustAstronomical  5 лет назад +2

      So if you were to be observing the earth from a distance looking down at the North pole, you would see the Earth rotating clockwise. But we are on the rotating earth, so what we see is the opposite rotate. We see the stars rotating counter-clockwise around the North Star. This video shows this a little better: ruclips.net/video/DoOuSo9qElI/видео.html

  • @bluecreeper6161
    @bluecreeper6161 4 года назад

    4:04 what is that music

  • @SamFisherK
    @SamFisherK 4 года назад +1

    That kind of explained my question:
    Is this means that along with precession, seasons are also slightly shifting possition around the sun? If so, then after some thousands of years we would see stars that now could be seen in winter, we will see them in summer? Im not sure if anyone would understand my question.

    • @ItsJustAstronomical
      @ItsJustAstronomical  4 года назад +2

      That's exactly right. The seasons will happen when the earth is at a different point along its orbit. So in 13,000 years, the earth will be on the opposite side of the Sun during summer. So stars that were visible in the winter will be visible in the summer in 13,000 years.

    • @SamFisherK
      @SamFisherK 4 года назад +1

      @@ItsJustAstronomical Thank you!

    • @paulthomas963
      @paulthomas963 8 месяцев назад

      The seasons are not shifting. The model predicts it, but the historical evidence contradicts it. Which means it's wrong.

  • @ttttdddd6869
    @ttttdddd6869 4 года назад +1

    Polaris is currently only about 0.75 degrees from the north celestial pole. It is the 49th brightest star in the sky. It turns out that having a pole star with this level of quality is rare. I did a lot of math on this and found that the probability of having a better pole star is only about 2% for the north pole or 4% for either pole. The details of these numbers follow.
    I defined the quality of a pole star as 1 / (rank * angle from pole * angle from pole).
    So the quality of Polaris is 1 / (49 * 0.75° * 0.75°) = 1 / (49 * 0.013 * 0.013) = 119.1
    I got the probability of having a better pole star using the following code. It simulates random placement of 5000 stars for each simulated planet. It counts what portion of the planets have a pole star with better quality than Polaris. You can run this code in the inspector console in a desktop web browser. You can control various simulation parameters by changing the last line. Currently it outputs the probability of having a better pole star at either pole.
    const NUM_STARS_LIMIT = 5000; // The number of stars visible to the naked eye is about 5000.
    const POLARIS_DISTANCE_FROM_POLE_DEGREES = 0.75;
    const POLARIS_RANK = 49;
    function getProbabilityBetterThanPolaris(num_rounds, include_both_poles, quality_function) {
    // num_rounds: the number of rounds to run to get the probability. Go at least 10000 for accuracy.
    // include_both_poles: boolean
    // if true, stars near either pole will be considered
    // if false, stars near only one pole will be considered even though stars in both hemispheres are included in the ranking of stars
    // quality_function: (rank, radius_squared) => Number
    // This function is called for each star.
    // The higher the number, the better the star is as a pole star.
    const polaris_quality = quality_function(POLARIS_RANK, Math.pow(POLARIS_DISTANCE_FROM_POLE_DEGREES * Math.PI / 180, 2));
    let num_rounds_with_better_pole_star_than_polaris = 0;
    for(let round_index = 0; round_index < num_rounds; round_index++) {
    let found_better_pole_star = false;
    for(let star_index = 0; star_index < NUM_STARS_LIMIT; star_index++) {
    let x = 0;
    let y = 0;
    let z = 0;
    let distance_squared = 0;
    while(x*y*z === 0 || distance_squared >= 1) {
    x = (Math.random() * 2) - 1;
    y = (Math.random() * 2) - 1;
    z = (Math.random() * 2) - 1;
    distance_squared = (x*x) + (y*y) + (z*z);
    }
    // is now guaranteed to be in the unit sphere.
    // Also, x, y, and z are guaranteed to be nonzero.
    if(include_both_poles || z > 0) {
    const quality = quality_function(star_index + 1, ((x * x) + (y * y)) / (z * z));
    if(quality >= polaris_quality) {
    found_better_pole_star = true;
    break;
    }
    }
    }
    if(found_better_pole_star) {
    num_rounds_with_better_pole_star_than_polaris++;
    }
    }
    return num_rounds_with_better_pole_star_than_polaris * 1.0 / num_rounds;
    }
    console.log(getProbabilityBetterThanPolaris(10000, true, (rank, radius_squared) => 1 / (rank * radius_squared)));

  • @tommywatterson5276
    @tommywatterson5276 Год назад

    The earth has been " wobbling " on its axis for millennia. It's just so slow and occurs over the millennia, we never notice it. Seasonal changes happen +/- and that's it. Spin a top on the floor, it wobbles as it slows too. Same thing.

  • @rogerfroud300
    @rogerfroud300 Год назад +1

    Are you sure? I've just watched a video explaining that this isn't true. Precession requires that one end of the axis is fixed, and that's not the case with the Earth.

  • @rohithbr4341
    @rohithbr4341 2 года назад

    What do you mean by "everything will be backward"? When will this reversal happen? If this is a gradual change do you mean the seasons will gradually shift? Is that what we're facing and perhaps calling it "climate change"?

    • @ItsJustAstronomical
      @ItsJustAstronomical  2 года назад

      Before that I had just said "Geminis will be born in December, Cancers in January..." Everything will be backwards in the sense that the Earth will be on the opposite side of the Sun in January or in other words the Sun will be in the opposite constellation in the sky. The seasons will not shift with respect to the calendar. The position of the earth will shift with respect to the calendar. This change will happen over 13,000 years. This actually does have an effect on climate, but it's very gradual. I talk about this in another video: ruclips.net/video/iA788usYNWA/видео.html

    • @rohithbr4341
      @rohithbr4341 2 года назад

      ​@@ItsJustAstronomical What I meant was if the axial tilt changes from +23.5 to -23.5 in 13000 years from now, then during December the northern hemisphere will experience summer solstice instead of winter solstice, right? Pls clarify.

    • @ItsJustAstronomical
      @ItsJustAstronomical  2 года назад

      @@rohithbr4341 no, it won't. As I explain in the video, our calendar is based on the tropical year meaning it's based on the seasons. Winter will still be in December. The seasons would only reverse if we used a sidereal calendar which we don't. It's only backwards in the sense that "Geminis will be born in December..."

    • @rohithbr4341
      @rohithbr4341 2 года назад

      @@ItsJustAstronomical Thx again. So what you're saying is the tropical zodiac timelines (for each sign) is a dynamic thing. The "from" and "to" dates of each tropical zodiac sign changes over time?

  • @vegahimsa3057
    @vegahimsa3057 5 лет назад +1

    Procession is about 1° / 72 years.... But that's not why the Julian and Gregorian calendars are inaccurate. They're just not accurate. The year (neither sidereal nor tropical) is not evenly divisible by whole days. Either solar noon shifts every day, or we add/subtract days every few odd years, irrespective of the zodiac.

  • @wiolantsungazer7665
    @wiolantsungazer7665 5 лет назад +4

    It was known about by civilizations before Hipparchus. Just imagine Göbekli Tepe from 11.500 years ago!!

    • @cosmoanayiotos6924
      @cosmoanayiotos6924 5 лет назад

      Wiolant SunGazer did animals give themselves names 11,500 years ago ? Thought they were still busy picking fleas off each other

    • @ArisaemaTriphyllum
      @ArisaemaTriphyllum 4 года назад

      Go check out some of the Hopi prophecies.

    • @Laurelin70
      @Laurelin70 4 года назад

      @@cosmoanayiotos6924 11,500 years ago it was the end of the fourth Glacial Era and the end of the Paleolithic Period. Men were making very refined stone tools, they knew art (plenty of cave paintings and graffitis, bone and ivory figurines), they buried their dead with their belongings, they wore jewelry, they hunted very big preys (so they must have had a good social organisation)... not at all "animals", you little ignorant.

  • @oobrocks
    @oobrocks 3 года назад +1

    Excellent channel!

  • @jihyeooh
    @jihyeooh 3 года назад

    this is best 3D Astrology part! thanks!

  • @shivendravashistha6577
    @shivendravashistha6577 2 года назад

    very nice video .....respect for the efforts u have made👌

  • @hudasedaki5529
    @hudasedaki5529 11 месяцев назад +1

    that's very informative. thank you

  • @johnmcfaddenjr3558
    @johnmcfaddenjr3558 4 года назад

    so if we have been using the Gregorian calendar or even a tropical method for keeping years that would mean our windows of signs has fallen out of line? Even since we adopted the Gregorian calendar we've moved 6 days behind the astrological frames.

    • @ItsJustAstronomical
      @ItsJustAstronomical  4 года назад

      Yes, that's correct. We've been falling out of line with the signs for quite some time.

  • @tinadadian1970
    @tinadadian1970 2 года назад +1

    I loved it! (Just like you said)

  • @nrcx97
    @nrcx97 4 года назад

    Thank you for the Astro video😄😄

  • @milkyway808
    @milkyway808 2 года назад

    Wow this is amazing video!! Good to know

  • @RonLWilson
    @RonLWilson 2 года назад

    Well, I do not know if everyone will love your video... but did!

  • @detrasdelescenario0912
    @detrasdelescenario0912 3 года назад +1

    wow, fabulous explanation

  • @vlohani
    @vlohani 7 лет назад

    Amazing! Loved every bit of it! ;)

  • @magrossell
    @magrossell 3 года назад +4

    been trying to wrap my head around sidereal time and the visual helps. actually, it helped to clarify astrological concepts too: the vedic system of astrology (from India) is based on the constellations and uses sidereal time. however, western astrology (where pop culture horoscopes and what not come from) is based on the seasons and uses tropical time. the stars in the sky at the time of development were simply the label given. for example, aries is aligned with spring (forget about the aries constellation). aries is the fresh spark of spring energy that begins processes. So don't worry -- scorpios will still be those born in late october/november (dark, brooding, going into the underworld autumn) even when the sun is in scorpio the constellation in april :) the real mind fck with western astrology is the northern and southern hemispheres (opposite seasons)--so the energies are all wrong.

    • @FootLettuce
      @FootLettuce 2 года назад +2

      Astrologers should be creative and think new names for the signs to set them apart from Astronomy science.

    • @markecheverria1531
      @markecheverria1531 2 года назад +1

      @@FootLettuce if only astronomy and astrology had not been the same thing before...

    • @GeorgE-yo5yc
      @GeorgE-yo5yc 10 месяцев назад

      Neither school of astrology makes sense.

  • @JacobGoodwin
    @JacobGoodwin 7 лет назад +10

    My favorite video yet! Maybe that's because I love charts and graphics... and good humor.

    • @richardschiller7803
      @richardschiller7803 7 лет назад

      oh well my charts look better than that. Mine are actually volvelles as in charts that slide or rotate as paper tools of math calculating. Mine are free, you can make a video, I would like that. One chart shows how every day number 1 such as 1 and 11 and 21 of Noah's 360-day is Chinese WU for 1, and Mayan kin 1 as imix (Mayan kin 11 has another name), and there is no 21 because Mayans count by 20 not by 30. I saw a documentary once 20 years ago that said Sothic being 1460 years is half-Sothic in 730 years. Not so because 720 is 180-day, and 720 is another 180-day to be 360 in 1440, and then the 5 days for 365 leap days requires 20 years so you cannot just cut it in half, and Genesis knows this because the stretched Genesis uses 740 and 720 years for 185 and 180 leap days. Peleg they have die in year 740 as 2+135+130+134+Peleg 339.

    • @4amcuriosity162
      @4amcuriosity162 6 лет назад

      @@richardschiller7803 wtf r u saying

    • @richardschiller7803
      @richardschiller7803 6 лет назад

      @@4amcuriosity162 i dont think i said anything about fukking. Do you see that some where. Are you telling me that a lies is easier to make appear as true than for you to read the truth and not understand it

    • @4amcuriosity162
      @4amcuriosity162 6 лет назад

      @@richardschiller7803 seek a doctor.

    • @richardschiller7803
      @richardschiller7803 6 лет назад

      @@4amcuriosity162 So this is what you do, speak online to 7 billion people and seek 1 million to put into hospitals under doctors and pump drugs into them until they die, or are at least stupid enough to understand YOU. Arent you so cool to use my name, and hide behind a crap username. I bet your 4 a.m. curiosity is in your hand

  • @djdigital3806
    @djdigital3806 6 лет назад +1

    I'm a Taurus too. Good Video.

  • @rookiebird9382
    @rookiebird9382 Год назад

    Perfect explanation! Thank you!

  • @JohnDoent-qy9wu
    @JohnDoent-qy9wu 19 дней назад

    The Axial Precession was discovered by pre-dynastic Egyptians. The Pyramid Code is a 5 part documentary with an indigenous Egyptian Hakim Arywan, a historian & wisdom keeper explains about the Dark Age/Golden Age 26K year cycle. The documentary also introduces the Dogon people who were also speaking of it and Sirius long before we had telescopes to prove it.

  • @mlpadha303
    @mlpadha303 Год назад

    Thanks for justifying earth’s axis spinning. Others could not explain it that way. Now my question is , how did you get 26000 years figures ?

  • @raytempus4212
    @raytempus4212 2 года назад

    I do like the video. Smart, fun. Thanx!

  • @SevenDeuce072
    @SevenDeuce072 4 года назад

    Is this wobbling affecting the climate? Or do you think it’s another cause?

    • @ItsJustAstronomical
      @ItsJustAstronomical  4 года назад

      It does affect the climate over very long periods of time. It's not causing much of any change over the past 100 years. This video explains more: ruclips.net/video/iA788usYNWA/видео.html

  • @derickramdeen4796
    @derickramdeen4796 4 года назад

    Does the sun move around the zodiacs or is it our perspective that is changing?

  • @justinbarter1546
    @justinbarter1546 5 лет назад

    a Taurus I knew you were a cool dude, I was destined for greatness as well

  • @hairnsap
    @hairnsap 6 лет назад +1

    It's been wobbling and will continue to wobble. No big woop here

    • @mulder2400
      @mulder2400 5 лет назад

      I have been monitoring the position of "Sun" in sky changing for over 10 years, from same location @ 48.75 N Lat. I made a video called "Earth's Axis Shift", as 2008 had this same phenomena (corollary with 11 year Solar Minimum) of Sunlight out of position, best seen at Summer Solstice. I removed it when I realized Earth is not a Planet, it's a static Plane covered in a Torus Field. Now it's 2019 and to calculate position of Sun, I use photo of shadow line at high noon, and very level surface line (like Eaves) with a virtual Protractor overlay, to acquire Angle A. I then use the Aaron Dover Astrolabe apkdownloadforandroid.com/com.aarondover.yinyangapp/ to get Sun Latitude line, combined with my "GPS" Location and Google Earth Ruler for the Longitude distance from You to the Sun Latitude (Side B). Any Right Angle Trigonometry Calculator will do the hard stuff, here www.carbidedepot.com/formulas-trigright.asp you'll be entering Angle A, and Side B.
      What I've discovered is that the height (Side A) of "Sun" is always changing now (last couple years for sure), and it's not even consistent year after year, finding itself at different altitudes, on the same day different year.
      Today: May 30 2019: I tried to do a calculation because I know (lived here 45 yrs) the "Sun" is too far North, and Flat Earth Astrolabe is giving a strange reading of Sun latitude, already at 24.0 degrees North and it's not even June 21 Summer Solstice yet, so my results will be off. The Photo's I've taken of high noon shadow line on May 30 2018 and May 30 2019 differ by 8 degrees (using protractor), which is proof the "Sun" angle has changed. The FE Astrolabe is max at 24 degrees North, so there's no way to calculate "Sun" height at Summer Solstice now, as it won't be accurate ?
      I have videos showing that the Sun is a Local Star Phenomena (likely Capacitor), and Moon is also local and controlling "Sun" Position and Luminosity as Technology (think Square Wave Frequency Modulator). So don't worry about Earth tipping over, it's not a Planet or Spinning. The era of Disaster (Dead-Star) is upon us, and the weakening of the Torus Fields (AKA Magnetopause) determines our fate.

  • @anshul.infinity
    @anshul.infinity 3 года назад

    It was first introduced in the book Surya Siddhanta.. Which a lot don't know about.

  • @brentmiller1607
    @brentmiller1607 2 года назад

    If you take the most precise wind up watch and set it to the exact time of you're cell phone, over time you lose time comparing the two. Could the last largest tsunami that we had slowed the Earth's rotation that much? Also, could the Earth's wabble be the actual reason for climate change more than anything else?

  • @BigNewGames
    @BigNewGames 6 лет назад

    I have a two questions.
    The sun travels about 500,000 miles per hour (804,672 km) towards the star Vega. This was recently noted after astrophysicists discovered the shift in the light spectrum that occurs with distant galaxies. Like the Doppler effect that occurs with sound a similar thing happens with light. Thus astrophysicists are able to deduce the speed and rotation of distant galaxies, stars and the direction that they are moving, i.e., towards or away from us. The more the light shifts in certain wavelengths the faster the distant object is traveling. Thus they were able to deduce the speed of 500,000 mi/h that our sun is traveling through the Milky Way.
    My question; is the sun's movement included in your presentation of the precession?
    Because I believe this movement would explain why the constellations retrograde 1° every 72 years.
    In 72 years the sun would have traveled 315,576,000,000 miles (507,870,342,144 km), about 1/18 the distance of a light year.
    The Earth returning to the same position (tropical year) year after year while the axis remained stationary, wouldn't the distance the sun traveled in 72 sidereal years, from Earth's perspective, cause the constellations to appear to retrograde 1°?
    It would be cool if you did a simulation from an outside perspective that included the Earth's orbit and rotation along with the sun's orbit and rotation against the background constellations over time.

    • @dreimann
      @dreimann 6 лет назад +1

      I've read that the math to calculate procession is simpler if we consider our sun being part of a binary system. In that model, procession occurs due to the elliptical orbit of the sun around the barycenter of this larger system.
      But would the distance the sun moved be enough to explain procession? If this were the case, wouldn't we be able to calculate the sun's orbit and determine the angles and direction necessary to calculate where the companion star is? Why wouldn't we have found this companion by now (even if it's a dim brown dwarf)?
      But cool things to think about.

    • @BigNewGames
      @BigNewGames 6 лет назад

      I agree with you. There needs to be another factor that is not addressed.
      According to the Mayan Indians and their Codex, the solar system is bobbing up and down along the galactic ecliptic, z direction as it orbits the galaxy's core. The sun takes on a snake like motion as it travels through the galaxy. Hence the depiction of a snake when referring to the sun's motion. They mentioned the dark rift along the galactic ecliptic being the measuring stick, so to speak for their great Maya calendar and how the solar system moved long before astrophysicists discovered the sun was even moving.
      So the extra variable to cause this precession of the equinoxes would be the bobbing motion in the z direction that occurs to the sun over time while it orbits the galaxy's center. the sun moves to the north and then moves back towards the south on 12,960/2 = 6,480 year intervals.
      Besides, the star Vega is to the north, the constellations around the Earth are on a different plane than the direction the sun is moving. Thus why this z movement is causing the sidereal year to change while the tropical year remains the same.

  • @AlwaysHereAndNow
    @AlwaysHereAndNow 3 года назад

    Which leads me to this question that hopefully will be your next video: what is the link between astrology and climate change?!

  • @Yoshi92
    @Yoshi92 3 года назад

    Thanks for this video, very informative. 👍👍👍

  • @sbelobaba
    @sbelobaba 3 месяца назад

    4:10 Russians showed up at the 1908 Olympics 12 days late.
    The idea that the Russian Empire was so backward that even the educated class was unaware of the existence of the Gregorian calendar is rather absurd and doesn’t reflect well on the author of this video. The 1908 Games themselves were the longest, lasting 187 days, and it would have been hard to miss them. At those Summer Games, Russian athletes won 3 medals, and Finland, which was then part of the Russian Empire, won 5. As for the rumors about Russian athletes being late, you can even read about that in Wikipedia.
    “Some sources claim that the Russian shooting team was 13 days late to the Olympics due to the Russian Empire still using the Julian calendar as opposed to the rest of Europe, which used the Gregorian system. The official report does not mention Russia, and it does mention Italy and Australia as "absent". Other authors doubt of this claim, and underlie that Russia had been living next to Gregorian-calendar Europe for two centuries and was used to the difference.”
    As for the topic of the video. There were many attempts to switch to the Gregorian calendar, but Russian scientists were always against it and presented good arguments. Each time, this idea was rejected for scientific reasons. However, the Bolsheviks were not well-educated people, mostly dropout students. Lenin was a dropout, and so on. They switched to the Gregorian calendar with a single stroke.
    There are two calendar systems. From a purely scientific, formal point of view, the Gregorian calendar is based on incorrect reasoning and astronomical errors. Essentially, from a scientific point of view, it’s no better than the Julian calendar. From a church perspective, it is certainly flawed. Because of the Gregorian calendar reform, the Catholic Easter sometimes coincides with the Jewish Passover, which violates the first Apostolic rule. Therefore, from the standpoint of the Orthodox Church tradition, it is simply incorrect, and scientifically, it’s no better than the old Julian calendar. Again, there are two definitions of the year. Either we take an average between the two, or we get closer to one. It’s essentially the same.

    • @ItsJustAstronomical
      @ItsJustAstronomical  3 месяца назад

      I said they were late. I did NOT say "the educated class was unaware of the existence of the Gregorian calendar". That would be an absurd statement and you know perfectly well that I never said that.
      www.rbth.com/history/331074-russia-late-for-olympics-1908
      www.si.com/extra-mustard/2013/12/30/the-extra-mustard-trivia-hour-when-a-calendar-defeated-russia-in-the-1908-olympics

  • @秦强-q7o
    @秦强-q7o 7 лет назад

    Great video!
    I like them very much

  • @taniouzazaza
    @taniouzazaza 4 года назад +1

    i loved the video whether you were sarcastic or not

  • @soinite
    @soinite 5 лет назад

    How can you see the capricorn from the earth when it's behind the sun 2:10

    • @ItsJustAstronomical
      @ItsJustAstronomical  5 лет назад +1

      You can't, but you can figure out that the Sun would be in that part of the sky if it wasn't so bright.