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AstroPhil
Великобритания
Добавлен 7 сен 2017
I am a Senior Lecturer in Astrophysics in the School of Mathematics and Physics at the University of Lincoln. This channel contains videos about my research, astronomy and astrophysics tutorials and other interesting videos in astrophysics.
A simple guide to right ascension and declination in the equatorial coordinate system
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Welcome, my name is Phil, and in this video I discuss right ascension and declination in the equatorial coordinate system.
In the equatorial coordinate system, which is commonly used in astronomy to locate stars and other celestial objects, right ascension and declination are the two primary coordinates:
Right Ascension (RA):
Right ascension is analogous to longitude on Earth but is measured in hours, minutes, and seconds. It represents the angle measured eastward along the celestial equator from the vernal equinox (the point where the Sun cro...
www.patreon.com/astrophil
Join this channel to get access to perks:
ruclips.net/channel/UCEo5y4iVybEu7AZ1w2lJlEgjoin
Welcome, my name is Phil, and in this video I discuss right ascension and declination in the equatorial coordinate system.
In the equatorial coordinate system, which is commonly used in astronomy to locate stars and other celestial objects, right ascension and declination are the two primary coordinates:
Right Ascension (RA):
Right ascension is analogous to longitude on Earth but is measured in hours, minutes, and seconds. It represents the angle measured eastward along the celestial equator from the vernal equinox (the point where the Sun cro...
Просмотров: 94
Видео
Can You Name the Comets You Discover? An Astrophysicist Explains
Просмотров 589 часов назад
Join this channel to get access to perks: ruclips.net/channel/UCEo5y4iVybEu7AZ1w2lJlEgjoin Support this channel on Patreon: www.patreon.com/astrophil Welcome! My name is Phil, and in this video, I'll explain how comets are named and if a comet gets to take the discoverers name. When you hear about a new comet being discovered or a bright comet visible in the sky, you might notice that it can ha...
What are the ascending and descending nodes of an orbit?
Просмотров 63День назад
Help support this channel on Patreon: www.patreon.com/astrophil Join this channel to get access to perks: ruclips.net/channel/UCEo5y4iVybEu7AZ1w2lJlEgjoin Welcome, my name is Phil, and in this video, I explain what the ascending and descending nodes of an orbit are. The ascending and descending nodes are specific points on the orbit of a celestial body (like a planet, moon, or satellite) as it ...
A simple guide to azimuth and altitude in the horizontal coordinate system
Просмотров 129День назад
Help support this channel on Patreon: www.patreon.com/astrophil Join this channel to get access to perks: ruclips.net/channel/UCEo5y4iVybEu7AZ1w2lJlEgjoin Welcome, my name is Phil, and in this video I discuss azimuth and altitude in the horizontal coordinate system. In the horizontal coordinate system, which is often used in astronomy and navigation, azimuth and altitude are two key measurement...
Can You Name the Exoplanets You Discover? An Astrophysicist Explains
Просмотров 87День назад
Can You Name the Exoplanets You Discover? An Astrophysicist Explains
How to detect exoplanets using eclipse timing variations of binary stars
Просмотров 8014 дней назад
How to detect exoplanets using eclipse timing variations of binary stars
How to Calculate Orbital Velocity for Elliptical Orbits Using the Vis-Viva Equation
Просмотров 54821 день назад
How to Calculate Orbital Velocity for Elliptical Orbits Using the Vis-Viva Equation
What are mean motion orbital resonances?
Просмотров 11721 день назад
What are mean motion orbital resonances?
Why don’t forming planets plunge into their stars
Просмотров 574Месяц назад
Why don’t forming planets plunge into their stars
What is the oblateness of a star, planet or moon?
Просмотров 168Месяц назад
What is the oblateness of a star, planet or moon?
Would Earth Be Considered a Moon or a Planet if it Orbited Jupiter?
Просмотров 734Месяц назад
Would Earth Be Considered a Moon or a Planet if it Orbited Jupiter?
Understanding the Mean Anomaly in Orbital Mechanics: Definition and Calculation
Просмотров 267Месяц назад
Understanding the Mean Anomaly in Orbital Mechanics: Definition and Calculation
What is the obliquity of a moon or planet?
Просмотров 122Месяц назад
What is the obliquity of a moon or planet?
Lunar Libration Explained: The Science Behind the Moon's Wobble
Просмотров 79Месяц назад
Lunar Libration Explained: The Science Behind the Moon's Wobble
How to detect exotrojans (co-orbital asteroids) using the transit method
Просмотров 252 месяца назад
How to detect exotrojans (co-orbital asteroids) using the transit method
In astronomy what is speckle and lucky imaging?
Просмотров 442 месяца назад
In astronomy what is speckle and lucky imaging?
“Ring of Fire” Annular Solar Eclipse in the US, Central & South America on 2nd October 2024
Просмотров 2493 месяца назад
“Ring of Fire” Annular Solar Eclipse in the US, Central & South America on 2nd October 2024
Using the Rossiter-McLaughlin effect to determine the spin-orbit alignment of an exoplanet
Просмотров 2113 месяца назад
Using the Rossiter-McLaughlin effect to determine the spin-orbit alignment of an exoplanet
How to detect exocomets using the transit method
Просмотров 703 месяца назад
How to detect exocomets using the transit method
My Top 3 Dynamically Interesting Stars
Просмотров 5723 месяца назад
My Top 3 Dynamically Interesting Stars
Transit Timing Variations Due To Negligible Planet-Planet Perturbations
Просмотров 893 месяца назад
Transit Timing Variations Due To Negligible Planet-Planet Perturbations
What is the Earth Similarity Index (ESI) for exoplanets?
Просмотров 2103 месяца назад
What is the Earth Similarity Index (ESI) for exoplanets?
Energetic Showdown: Exploring Kilonovae, Supernovae, and Hypernovae
Просмотров 3294 месяца назад
Energetic Showdown: Exploring Kilonovae, Supernovae, and Hypernovae
How to calculate the tidal heating of Jupiter's volcanic moon Io
Просмотров 1934 месяца назад
How to calculate the tidal heating of Jupiter's volcanic moon Io
How To Derive the Potential Energy of a Self-Gravitating Sphere
Просмотров 1414 месяца назад
How To Derive the Potential Energy of a Self-Gravitating Sphere
How to derive the equilibrium temperature of a planet
Просмотров 3594 месяца назад
How to derive the equilibrium temperature of a planet
My Top 5 Dynamically Interesting Exoplanets
Просмотров 1 тыс.4 месяца назад
My Top 5 Dynamically Interesting Exoplanets
It's pretty cool that they can do that.
I SURE HOPE EVERY LIVING HUMAN BEING ON THE PLANET EARTH IS LOOKING AT THIS VERY VERY VERY VERY VERY VERY CLOSELY AND CAREFULLY 🤔🤔🤔🤔🤔🤔
ITS COMING
How many days is this timeframe?
Just get me Mercury Comet. Any of them. 250 to 428. I'm. Not picky.
How did they get the camera into space?
The James Webb telescope has taken better pictures.
couple questions: Did pre-spacecraft astronomers use this method to calculate jupiter's mass before? How would we know jupiter's radius/diameter from earth?
Yes they would have used a similar method. The radius of Jupiter was estimated around the same time telescopes were first invented. You can measure the angular size with the telescope and get the actual diameter if you know the distance to Jupiter. Jupiter's moons were used to measure the speed of light due to variations in the timings of the eclipses of the moons as the distance between Earth and Jupiter changes. Also the parallax of Mars as seen form Earth was used to determine astronomical distances, which is allied to other planets. These all lead to the distance to Jupiter being determined. Once you have the distance to Jupiter and and angular size you can calculate its diameter.
Breaks my heart that planets and suns eill all die we really need to figure out how to survive and thrive
Paida he kyo hue, jab hamesha k liya gayab ho jayenge.
Scary!
Пока только 3д графика с пк, достовеных фото видео на наш век пока не сняли, возможно их вообще не существует или это не дыра, а раскрученная до сверх скоростей сфера, какое-то ядро, черная звезда, планета и тд ;)
Do astronomers have to adjust the coordinates to compensate for slight axial wobbling?
@@HebaruSan yes, the coordinates are for a given date as they are constantly changing. You'll notice they will be something like J2000 epoch, which refers to the instant of 12 noon (midday) on January 1, 2000.
Thanks a lot for your content... very much helping in understanding my geodetic astronomy class
@abhishekmhamane615 Thank you, so glad it has been helpful
I AM GREAT 👍 ❤🎉
It would be good to show it to the end.
Imagine the civilisations, cultures, technologies, species and histories lost on the planets revolving around that star.
I know a few black holes...
Something else I’ve always wondered. Since the type 1a supernova produces heavier elements, wouldn’t that in a way feed a bit of “poison” to the giant star? By injecting particles of iron or heavier elements that absorb energy, it hampers the giant star’s ability to fight against gravity through nuclear fusion. I’ve also wondered if giant stars doom themselves in a similar way when they absorb planets and asteroids. Lots of iron and heavy metals in space rocks.
Yes, there will be some increase in metallicity from the SN, but the biggest effect is the likely stripping of the outer layers, which would have a more noticeable effect on future observations / evolution of the companion star. The SN also kicks the companion star away from the location of the SN which means it isn't going to sit in the newly formed nebula with heavy elements for long.
This Sound Should Barely Fit On a Rock'n Roll or a... Heavy Metal ,Wouldn't you Think?
Where’s your homework? Black hole ate it.
It only gets bigger
Vacuum cleaner. Dyson
Is it secret about technology of this wonderful video ?Natural astro timeplaens may be or animation?Thank you for this your creation according our kind world of natural knowing.❤❤❤
is the longitude of the ascending node the same as the azimuth? thank you for your videos and clear explanations
It "could" be referred to as the azimuth since this is the angle from some reference point to another reference point. However, the longitude of the ascending node is the angle between a reference direction (usually the vernal equinox) and the ascending node of an orbit. The azimuth is the horizontal angle between reference points.
Әдемі 🎉🎉🎉 тылсым 🎉🎉🎉әлем🎉🎉🎉 жарық шашқан 🎉🎉🎉белгілі бір мүсінді бейнелеп тұрғандай 🎉🎉🎉
A simple breakdown of Lambert's Problem would be cool. I know it's not very simple but something to help the understanding of the math.
Amazing
Too slow, bro. By 2031 will already have warp drive and will be touring Europa. We watch the museum piece arrive there
Im so serious because lets say there are 10 planes flying over our head 5 in front of us we can see and 5 behind us we can see.. they all are going the same direction side by side.. the 5 in front of us are going from left to right but if we turn around the 5 behind us will look like they are going from right to left
Go get an umbrella. Open it above your head and twirl it either clockwise or counter-clockwise like the motion of the stars. Notice that it doesn't matter which direction you look, it's still rotating in the same direction. You can even twirl it sideways at the northern horizon or southern or eastern or western, it doesn't matter. That's what would happen if the earth were flat and the sky spun above us, but it's not what happens in real life when you look at the sky. In the northern hemisphere the spin is one way, and in the south, it's the other way. Also, you can't see the North Star from the southern hemisphere because it's on the north side of a round (spherical) earth.
These are not real motions.. ok i understand in the northern hemisphere we can see the north star which is in the center of all the stars but in the southern hemisphere we can not see the north star.. someone plz explain these motions.. I'm a flat earther yes I am but if this is true, what's being showed in this video, I will throw my flag in.
These are star trails. Because we are round and tilted as we rotate, the northern and southern hemispheres see movement in the opposite directions.
These motions are correct. In the north, the spin is one way and in the south it's the opposite. This can't happen on a flat earth, but it happens in real life because the earth is not flat. Without trying to confuse you even more, read about what a sextant (tool) is and how people determine their latitude on the planet (e.g. 30 degrees north). This tool wouldn't work on a flat earth either, but it works in real life, again, because the earth is not flat.
@montazmeahii6029 let's be clear to the people in the north and south it only spins one way.. in the north it spins one way and in the south it (appears) to spin the other way
@@MyFavoriteFive Correct. It's only one way in the north and only the opposite way in the south.
Imagine some poor inhabited planets revolving around this star😢
Stunning....😮
Boyutlararası kapılar.
Yes. Pov from sun side.😮
Hey mate , you live in south , everyone is upsidedown, so how do you get on a coordinate system ?
It still works regardless of where you are on the planet. At least with respect to the az-alt coordinates as these are relative to the observer. If you are using the celestial sphere and right ascension and declination, these don't change. Just means the objects you can see are going to be different. So while it might feel 'upside down,' the principles of right ascension and declination still apply, just from a different viewpoint
LOL
Crazy man 😮
Admin knows Maybe red dwarfs can be very numerous and easy to find on other planets But it creates a huge problem on Reddit, people say that 95% of the planets that humans have discovered are red dwarfs and up to 90% of planets are uninhabitable why Because red dwarfs are small and unstable, but their radiation is 40,000 times that of the sun, it should cook the planet like a microwave oven There is another factor (Magnetic field) is a shield that protects the planet from the solar wind, helping our planet not to be (out of control greenhouse effect like Venus) and (solar wind blowing away the atmosphere like Mars) and in fact it has been proven that those planets either have a weak magnetic field or no magnetic field And the magnetic field only works when the iron core is electrified by the rotation speed of the earth's axis, thanks to which the earth's magnetic field is created and it has protected the earth for 4 billion years now let admin ask a question A planet that has no rotation but is tidally locked and must be roasted by 40,000 times more radiation Some stupid people think that even though the planet is locked but the twilight zone is habitable, it will be stripped of its atmosphere sooner or later Admin sees that the habitable zone is important but those last factors are extremely important I hope admin will accept your comments so that when making a video, I can add a little more to avoid any shortcomings
Vela pulsar A.K.A psr b0833-45
🌑🌒🌓🌔🌕🌖🌗🌘🌑🌒🌓🌔🌕🌖🌗🌘🌑🌒🌓🌔🌕🌖🌗🌘
Keep making these man, these things you shortly put on shorts is actually interesting and pretty amazing, something to just kind of explore on your channel you know? You have people interested in these more than you know it🤣
😢q
Non fatelo a casa
👉the space between heaven and earth😃🌏👉🥰😂
Henry Draper Catalogue
Thx
::::::speaking like a crotchety old man:::::::: Back in my day, it only took us two years to get to Jupiter. 😁😁😁
Hey can u recommend some books for astronomy with math and physics,i am a first year student in University,Thanks!
So I have "Fundamental Astronomy" on the reading list for my first year university astronomy module. It covers nearly all concepts in astronomy with the relevant maths and physics an introductory level.
The "Slingshot Effect" - not from your modern day Wrist Rocket, but the ancient sling.
Nah it’s just one of the z fighters