This is one of the best videos I've seen on visualising the behaviour of the night sky and ecliptic from our perspective on Earth - it's very hard for some of us to just "get it" from a text article and a couple of pictures. The animation just makes it click. Thanks!
Wonderful video that was... I have been searching such an animation since long. Request you if you could pls also make a video in which the rising and falling of constellations can been seen in the backdrop.
Sure does rule out flat earth theory! What an awesome God to have created such an immense universe and all it entails! And that's just a smidgen of His intellect 😊❤ Loved this video... great work
Hello. Thank you for this fascinating video. I spent a week this year on Bonaire, a Caribbean island at 12ºN latitude. The moon and Venus were in the sky. I noticed that the path they followed through the sky as they set was almost perpendicular to the horizon, unlike the familiar arcing path I'm used to at 45ºN, where I live. I pointed this out to the friends I was with, but it was hard to explain why we were seeing this unfamiliar path through the sky. I would love to see an animation that shows how our view of the ecliptic changes from different latitudes.
I'm glad you liked the video! It is very interesting to experience the different patterns and angles at various latitudes and to see stars we don't usually see. I did illustrate the idea in a rudimentary way in the middle segment of this video: ruclips.net/video/mS9dTN0IEK8/видео.html But it would be a good idea to make a more in-depth video on the subject. I will add it to the list!
Hi! Are you referring to the apparent wobble of the ecliptic across the sky each night or the actual long term (thousands of years) wobble of the direction Earth's axis points in space? The line of the ecliptic is simply a line (defined by the Earth's orbital plane) that runs at an angle relative to the way the Earth is spinning. It is as if you stood in the middle of a suspended tilted hoop, and as you turn you see the high end of the hoop in one direction, and the low end in the opposite direction. As you turn, your eyes follow the hoop up and down. Over the short term, any stars you see in any direction, such as behind the high end of the hoop or the low end, would seem to be fixed other than the fact that you see them as you spin, and then when the sun is at a certain point on the hoop you can't see the stars in that direction (because it is daytime). Over the long term (thousands of years) as the direction the Earth's tilted axis points in space traces out a circle, the stars will seem to shift along the hoop until the ones that were behind the low end of the hoop eventually seem to be behind the high end, etc. See if this video helps with that last part and keep asking questions: ruclips.net/video/48ZzdC0tT0Q/видео.html
@@ArchaeoastronomyDatabase oh! For some reason I thought the wobble happened in a much shorter time period. Trying to wrap my head around Earths orbital mechanics and our perspective of it has been tough.
Thank you my friend. I never liked illustrations and animations that shows the solar system to explain what we see in the sky. It's too abstract and intellectual. I think it's better to explain it like you did, with the actual sky that we see during day and night. So, from what I understand, the ecliptic, from our point of view, is “moving” throughout the day ? Is it why the moon path is sometimes low and sometimes high in the sky ? If we are in the winter, in the northern hemisphere, during the day, the ecliptic curve is low (as the sun is low) and as we go through the night, the ecliptic curve is moving higher (as the full moon is high) ? Thank you in advance !
I am glad you liked it! Even some archaeoastronomers approach this study from our current astronomy perspective instead of immersing themselves in the pattern of the whole sky as seen from Earth. You have it exactly right about the ecliptic! As the Earth turns the place where the ecliptic intersects the horizon seems to 'move' from the minimum low point to the maximum high point, and when the sun is at/near the low point it curves across the sky very low, but the full moon opposite it will come up at the high point and go high in the sky.
How can I find the angular speed of the moon across the sky... will this speed change (increase and decrease) and cycle back everyday/month/18 yrs etc.?
Hi! The moon's orbit is elliptical so it moves faster at certain points than others and that orbit precesses to change orientation relative to the Earth so it would be quite complex to get the exact speed for any given moment. I've done a little searching and it seems to average around 0.55 degrees per hour but it could range somewhere between as low as 0.49 and as high as 0.61 at the slower and faster parts of its orbit. Does this help?
You are assuming that the earth is round. What if the earth was flat and that the stars and the sun and mood orbit the earth? Show me how this works then. I am sorry but I don't think your ecliptic lines work here.
Not assuming, just showing what matches my own personal observations. The idea is to understand the patterns in the sky, so people can use the resources they are seeking to help them do that.
If Earth was flat, all celestial objects would be moving vertically in the sky, as they do at the equator. The ecliptic's motion is a complicated pattern that varies with latitude. It'd be great if that pattern can be explained more with respect to latitude and solar declination. On a flat Earth, it wouldn't vary by latitude. And if Earth didn't have a tilt, it'd be a simple straight line, one that would follows the sun's existing path on the equinoxes.
@@DAK4Blizzardthey say that the sun, moon and stars revolve around the flat earth because of electromagnetic fields from the centre of the earth (North Pole) that keeps them in orbit
@@mojjovirgo Electromagnetic fields, or any other real or fictional forces that you believe cause orbits have nothing to do with the geometry I described. (But it's laughably wrong for "them" to assume stars revolve around Earth.) Let's stick to the celestial geometry. If Earth is flat, at every latitude I'd be able to see the north celestial pole (where Polaris is) on the horizon due north, and I'd be able to see the south celestial pole (near where Sigma Octantis is) on the other end of the horizon due south. Let me emphasize: I'd be able to see those points in those positions in the sky at every latitude. The reality: this can only be observed at the equator.
Another video showing a view of the ecliptic from 'above' as a full circle:
ruclips.net/video/3shY9BqYY7I/видео.html
This is one of the best videos I've seen on visualising the behaviour of the night sky and ecliptic from our perspective on Earth - it's very hard for some of us to just "get it" from a text article and a couple of pictures. The animation just makes it click. Thanks!
I'm glad you liked the video! Thank you for your kind comment.
Man this wasreally awesome, thx for making this video for real
Glad you liked it!
Brilliant use of Stellarium as a learning aid 👏👏👏👏👏
Thank you so much for this….this is amazing. Really helps conceptualize precession
You are most welcome. I'm glad you enjoyed it! Thanks for your kind comment.
Also: idk why, but the keyboard “clacks” really add a nice touch to the whole presentation. And the background music too. 🤙🏽
great video, gives a lot more insight
Thanks! I'm glad you liked it!
Wonderful video that was...
I have been searching such an animation since long.
Request you if you could pls also make a video in which the rising and falling of constellations can been seen in the backdrop.
Thanks brother!
Sure does rule out flat earth theory! What an awesome God to have created such an immense universe and all it entails! And that's just a smidgen of His intellect 😊❤
Loved this video... great work
Indeed, eyes to see.
Hello. Thank you for this fascinating video. I spent a week this year on Bonaire, a Caribbean island at 12ºN latitude. The moon and Venus were in the sky. I noticed that the path they followed through the sky as they set was almost perpendicular to the horizon, unlike the familiar arcing path I'm used to at 45ºN, where I live. I pointed this out to the friends I was with, but it was hard to explain why we were seeing this unfamiliar path through the sky. I would love to see an animation that shows how our view of the ecliptic changes from different latitudes.
I'm glad you liked the video! It is very interesting to experience the different patterns and angles at various latitudes and to see stars we don't usually see. I did illustrate the idea in a rudimentary way in the middle segment of this video:
ruclips.net/video/mS9dTN0IEK8/видео.html
But it would be a good idea to make a more in-depth video on the subject. I will add it to the list!
Great educational video, I learned a lot from you. How did you show the lines of equinox and solstices in stellarium?
Thanks! The lines are displayed using the ArchaeoLines plugin from the configuration window.
See my video with instructions on how to install this and other plugins: ruclips.net/video/xB6O1x931YQ/видео.html
Okay but I'm confused. If the Earth is wobbling, how are the stars in a fixed position from out point of view?
Hi! Are you referring to the apparent wobble of the ecliptic across the sky each night or the actual long term (thousands of years) wobble of the direction Earth's axis points in space? The line of the ecliptic is simply a line (defined by the Earth's orbital plane) that runs at an angle relative to the way the Earth is spinning. It is as if you stood in the middle of a suspended tilted hoop, and as you turn you see the high end of the hoop in one direction, and the low end in the opposite direction. As you turn, your eyes follow the hoop up and down. Over the short term, any stars you see in any direction, such as behind the high end of the hoop or the low end, would seem to be fixed other than the fact that you see them as you spin, and then when the sun is at a certain point on the hoop you can't see the stars in that direction (because it is daytime). Over the long term (thousands of years) as the direction the Earth's tilted axis points in space traces out a circle, the stars will seem to shift along the hoop until the ones that were behind the low end of the hoop eventually seem to be behind the high end, etc. See if this video helps with that last part and keep asking questions: ruclips.net/video/48ZzdC0tT0Q/видео.html
@@ArchaeoastronomyDatabase oh! For some reason I thought the wobble happened in a much shorter time period. Trying to wrap my head around Earths orbital mechanics and our perspective of it has been tough.
@@TheJoshening it does take some time! Keep at it and let me know if you have other questions.
Looks like a Lorenz Attractor to me! 🙂
Thank you my friend. I never liked illustrations and animations that shows the solar system to explain what we see in the sky. It's too abstract and intellectual. I think it's better to explain it like you did, with the actual sky that we see during day and night.
So, from what I understand, the ecliptic, from our point of view, is “moving” throughout the day ? Is it why the moon path is sometimes low and sometimes high in the sky ?
If we are in the winter, in the northern hemisphere, during the day, the ecliptic curve is low (as the sun is low) and as we go through the night, the ecliptic curve is moving higher (as the full moon is high) ?
Thank you in advance !
I am glad you liked it! Even some archaeoastronomers approach this study from our current astronomy perspective instead of immersing themselves in the pattern of the whole sky as seen from Earth.
You have it exactly right about the ecliptic! As the Earth turns the place where the ecliptic intersects the horizon seems to 'move' from the minimum low point to the maximum high point, and when the sun is at/near the low point it curves across the sky very low, but the full moon opposite it will come up at the high point and go high in the sky.
How can I find the angular speed of the moon across the sky... will this speed change (increase and decrease) and cycle back everyday/month/18 yrs etc.?
Hi! The moon's orbit is elliptical so it moves faster at certain points than others and that orbit precesses to change orientation relative to the Earth so it would be quite complex to get the exact speed for any given moment. I've done a little searching and it seems to average around 0.55 degrees per hour but it could range somewhere between as low as 0.49 and as high as 0.61 at the slower and faster parts of its orbit. Does this help?
@@ArchaeoastronomyDatabase Yes... definitely.... I also read a lot today... esp. as the Solar eclipse is heating up the science community.
You are assuming that the earth is round. What if the earth was flat and that the stars and the sun and mood orbit the earth? Show me how this works then. I am sorry but I don't think your ecliptic lines work here.
Not assuming, just showing what matches my own personal observations. The idea is to understand the patterns in the sky, so people can use the resources they are seeking to help them do that.
I have a question for you Daniele: what observation cannot be explained by a spherical earth?
If Earth was flat, all celestial objects would be moving vertically in the sky, as they do at the equator. The ecliptic's motion is a complicated pattern that varies with latitude. It'd be great if that pattern can be explained more with respect to latitude and solar declination. On a flat Earth, it wouldn't vary by latitude. And if Earth didn't have a tilt, it'd be a simple straight line, one that would follows the sun's existing path on the equinoxes.
@@DAK4Blizzardthey say that the sun, moon and stars revolve around the flat earth because of electromagnetic fields from the centre of the earth (North Pole) that keeps them in orbit
@@mojjovirgo Electromagnetic fields, or any other real or fictional forces that you believe cause orbits have nothing to do with the geometry I described. (But it's laughably wrong for "them" to assume stars revolve around Earth.)
Let's stick to the celestial geometry. If Earth is flat, at every latitude I'd be able to see the north celestial pole (where Polaris is) on the horizon due north, and I'd be able to see the south celestial pole (near where Sigma Octantis is) on the other end of the horizon due south. Let me emphasize: I'd be able to see those points in those positions in the sky at every latitude. The reality: this can only be observed at the equator.