cool video! Finally I understand why the mirrors on The Hubble Telescope were so essential, so that NASA had to repair them to have undistorted images - since even slight distortions cause false estimations of the parallax angle
Thank you! I finally found ! (now my last question probably would be "what makes it that the star is supposedly right at the middle so that it makes a right triangle ?". I'm gonna check the things you linked to try to get answers...) Thank you so much, it took many videos to finally get to an actual explanation !
I don't know if you got your answer but I have a quick idea : to make the star at the middle you have to choose the right position of the earth. Like, you choose your "6 months apart measurement" to be in this configuration. As long as you do your measurements 6 months apart, you can do them in any month of the year, so you can choose the right months to have the star in this position :)
To answer your point. The parallax angle is the distance the star moves on the equatorial grid system which is what she drew when she showed the sphere encircling the Earth. Essentially all stars have a definite spot on the grid system since it is tied the the stars instead of the Earth's Horizon, anyway when the star appears to move it's position on the grid system the distance it moves is measured in the angular measurements of degrees, minutes, and seconds of arc. which is an angle since you are measuring the movement on a sphere rather than a plane. That distance star moves on the equatorial grid system due to the parallax effect is the parallax angle. I have been studying astronomy for years and have had to figure this out the hard way, which seems crazy considering the number of videos on the subject on the internet. Hope this further helps you.
To answer your point. The parallax angle is the distance the star moves on the equatorial grid system which is what she drew when she showed the sphere encircling the Earth. Essentially all stars have a definite spot on the grid system since it is tied the the stars instead of the Earth's Horizon, anyway when the star appears to move it's position on the grid system the distance it moves is measured in the angular measurements of degrees, minutes, and seconds of arc. which is an angle since you are measuring the movement on a sphere rather than a plane. That distance star moves on the equatorial grid system due to the parallax effect is the parallax angle. I have been studying astronomy for years and have had to figure this out the hard way, which seems crazy considering the number of videos on the subject on the internet. Hope this further helps you.
Polaris always appears aligned with the north pole no matter what 6 month spot the earth is in around the sun, and the constellations are always perspecrively rotating around Polaris with no precieved parallax between them.
This still doesn't answer how we calculate the angle. Since the sphere shown at 1:10, for that to be made we need to know the radius. Without that we cannot draw that and then without that how will we get the two angles?
I'm not sure I completely understand what you are referring to, but I will attempt to add some clarity. Let me know if there is a question still left unanswered! The sphere is a coordinate system that shows how a star's position is based on the angles declination and right ascension (rather than linear distances like a traditional xy-coordinate system). It is not necessary to show the shift in the star's position in the images we take (which is what we use to find parallax).
To answer your point. The parallax angle is the distance the star moves on the equatorial grid system which is what she drew when she showed the sphere encircling the Earth. Essentially all stars have a definite spot on the grid system since it is tied the the stars instead of the Earth's Horizon, anyway when the star appears to move it's position on the grid system the distance it moves is measured in the angular measurements of degrees, minutes, and seconds of arc. which is an angle since you are measuring the movement on a sphere rather than a plane. That distance star moves on the equatorial grid system due to the parallax effect is the parallax angle. I have been studying astronomy for years and have had to figure this out the hard way, which seems crazy considering the number of videos on the subject on the internet. Hope this further helps you.
@@terrencemartin7847 I think this would make more sense to me if there were concrete numbers involved. I am so confused about how the grid translates to an angle. I'm following and then I get completely lost at 1:23. What is the *angle* we measured? What is that number? Honestly cannot find a single thing on the internet that helps me to calculate these angles without using a protractor on my screen.
To answer your point. The parallax angle is the distance the star moves on the equatorial grid system which is what she drew when she showed the sphere encircling the Earth. Essentially all stars have a definite spot on the grid system since it is tied the the stars instead of the Earth's Horizon, anyway when the star appears to move it's position on the grid system the distance it moves is measured in the angular measurements of degrees, minutes, and seconds of arc. which is an angle since you are measuring the movement on a sphere rather than a plane. That distance star moves on the equatorial grid system due to the parallax effect is the parallax angle. I have been studying astronomy for years and have had to figure this out the hard way, which seems crazy considering the number of videos on the subject on the internet. Hope this further helps you.
Finally, someone answered this question! Thank you!
Glad you found it useful!
Thank you so much for your quick and easy explanation. This has been the only video where I've understood this topic.
Thank you, finally a great explanation on calculating the angle 😊😊 you rock!!
Glad it helped!
cool video! Finally I understand why the mirrors on The Hubble Telescope were so essential, so that NASA had to repair them to have undistorted images - since even slight distortions cause false estimations of the parallax angle
Thank you! I finally found !
(now my last question probably would be "what makes it that the star is supposedly right at the middle so that it makes a right triangle ?".
I'm gonna check the things you linked to try to get answers...)
Thank you so much, it took many videos to finally get to an actual explanation !
I don't know if you got your answer but I have a quick idea : to make the star at the middle you have to choose the right position of the earth. Like, you choose your "6 months apart measurement" to be in this configuration. As long as you do your measurements 6 months apart, you can do them in any month of the year, so you can choose the right months to have the star in this position :)
Nice but it doesn't answer the question
To answer your point. The parallax angle is the distance the star moves on the equatorial grid system which is what she drew when she showed the sphere encircling the Earth. Essentially all stars have a definite spot on the grid system since it is tied the the stars instead of the Earth's Horizon, anyway when the star appears to move it's position on the grid system the distance it moves is measured in the angular measurements of degrees, minutes, and seconds of arc. which is an angle since you are measuring the movement on a sphere rather than a plane. That distance star moves on the equatorial grid system due to the parallax effect is the parallax angle. I have been studying astronomy for years and have had to figure this out the hard way, which seems crazy considering the number of videos on the subject on the internet. Hope this further helps you.
i love you!! You explained it so perfectly.
Thank you! I really appreciate the comment
Well explained. Thank you so much❤
Great, amazing video!! So how do we measure the parallax angle again?
To answer your point. The parallax angle is the distance the star moves on the equatorial grid system which is what she drew when she showed the sphere encircling the Earth. Essentially all stars have a definite spot on the grid system since it is tied the the stars instead of the Earth's Horizon, anyway when the star appears to move it's position on the grid system the distance it moves is measured in the angular measurements of degrees, minutes, and seconds of arc. which is an angle since you are measuring the movement on a sphere rather than a plane. That distance star moves on the equatorial grid system due to the parallax effect is the parallax angle. I have been studying astronomy for years and have had to figure this out the hard way, which seems crazy considering the number of videos on the subject on the internet. Hope this further helps you.
Polaris always appears aligned with the north pole no matter what 6 month spot the earth is in around the sun, and the constellations are always perspecrively rotating around Polaris with no precieved parallax between them.
Exactly. I am trying to understand how the parrallax can be measured accurately.
This still doesn't answer how we calculate the angle. Since the sphere shown at 1:10, for that to be made we need to know the radius. Without that we cannot draw that and then without that how will we get the two angles?
I'm not sure I completely understand what you are referring to, but I will attempt to add some clarity. Let me know if there is a question still left unanswered!
The sphere is a coordinate system that shows how a star's position is based on the angles declination and right ascension (rather than linear distances like a traditional xy-coordinate system). It is not necessary to show the shift in the star's position in the images we take (which is what we use to find parallax).
Totally agree , still doesn't answer the question
To answer your point. The parallax angle is the distance the star moves on the equatorial grid system which is what she drew when she showed the sphere encircling the Earth. Essentially all stars have a definite spot on the grid system since it is tied the the stars instead of the Earth's Horizon, anyway when the star appears to move it's position on the grid system the distance it moves is measured in the angular measurements of degrees, minutes, and seconds of arc. which is an angle since you are measuring the movement on a sphere rather than a plane. That distance star moves on the equatorial grid system due to the parallax effect is the parallax angle. I have been studying astronomy for years and have had to figure this out the hard way, which seems crazy considering the number of videos on the subject on the internet. Hope this further helps you.
@@terrencemartin7847 I think this would make more sense to me if there were concrete numbers involved. I am so confused about how the grid translates to an angle. I'm following and then I get completely lost at 1:23. What is the *angle* we measured? What is that number? Honestly cannot find a single thing on the internet that helps me to calculate these angles without using a protractor on my screen.
love the intro
Haha thanks :)
Light can bend right? I mean Einsteins proved that through a solar eclipse. Is that taken Into account in the shifting distance?
Yes, light can bend :). The field of microlensing is all about how light from a distant object bends around a source in the foreground.
So they can actually predict the bending of light that way? Wow i am amazed, seems the most complex thing to calculate if i'm honest
Don’t waste your time she didn’t explain anything 😂
To answer your point. The parallax angle is the distance the star moves on the equatorial grid system which is what she drew when she showed the sphere encircling the Earth. Essentially all stars have a definite spot on the grid system since it is tied the the stars instead of the Earth's Horizon, anyway when the star appears to move it's position on the grid system the distance it moves is measured in the angular measurements of degrees, minutes, and seconds of arc. which is an angle since you are measuring the movement on a sphere rather than a plane. That distance star moves on the equatorial grid system due to the parallax effect is the parallax angle. I have been studying astronomy for years and have had to figure this out the hard way, which seems crazy considering the number of videos on the subject on the internet. Hope this further helps you.