Astronomy - Ch. 17: The Nature of Stars (7 of 37) Using Angle of Parallax to Find Distances

[@arvindiyer1649]

Thank you soo much for your astronomy playlists!!!! Im studying for my astronomy olympiad entirely from your videos I get my mind blown with each video!

[@MichelvanBiezen]

A lot of students have written in that they did well on the astronomy olympiad after watching our videos. Good luck on the test.

[@computerlover9290]

how can we measure the angle of Parallax

[@MichelvanBiezen]

That is done with telescopes and computers.

[@charlessnachez4248]

@@MichelvanBiezen but how

[@sailexw6414]

@@charlessnachez4248 he describes it a bit in the video. Basically we use the change in position of the background stars. The greater the shift of the background stars, the greater the angle. This is why he drew all those dotted lines.

[@charlessnachez4248]

@@sailexw6414 but how? There is absolutely no video on KZbin that explains this step by step

[@0219-n1e]

And that is why Big Dipper changes through the year? or are they actually changing location ?

[@yallowrosa]

the issue is: How to measure the angle Theta?!

[@MichelvanBiezen]

That is done using telescopes, and the angle is compared to the location of far away stars that do not have a parallax angle.

[@charlessnachez4248]

this angle shift depends on the background stars so how we can know which background star we use

[@MichelvanBiezen]

You can use just about any star, since most stars are far enough away from here. We typically use red giants for reference, although with a telescope there are so many stars visible that have parallax angles near zero that you have a lot of choice.

[@manuelcheta]

Please know that you're making some people happy here, in Romania. Keep these videos coming - tehnocultura.ro/2014/11/15/astronomie-cum-afli-distanta-pana-la-stele-si-vitezele-lor/

[@daves112506]

Does this work with a flat earth?

[@MichelvanBiezen]

No, it doesn't. The star locations and the angle of parallax make it impossible to have a flat Earth.

[@marisaelenenadiejamusiccom3974]

Thank you

[@NgaBui-nc1fj]

Thank you so much!

[@MichelvanBiezen]

You're welcome!

[@stimulantdaimamld2099]

great