The Dance of Stars: Understanding Parallax and Stellar Motion

[@noelstarchild]

The Gaia telescope results blew me away, a galaxy in motion and information that tracks backwards and forwards in time. Thank you Mr Kendall, informative as always.

[@JasonKendallAstronomer]

I know, right?

[@UncleArthur44]

@jasonkendall Thanks for many very informative videos. I have to admit though that I don’t understand the logic behind astronomical parallax. That is not just from you, but from every explanation I have ever come across. eg: you take a measurement (a) and six months later you take measurement (b) and count the distance between the two as 2 au. You then half that to presumably give a baseline of 1 au and a right angle from the sun. What about the fact that the sun and earth are also moving through space at right angles to this assumed baseline at about 220,000m/s? Wouldn’t that put the distance travelled by the earth between (a) and (b) closer to 22 au? Where am I going wrong?

[@Radar23]

Yay

[@oak2movin354]

seen you in the netflix series. interesting.

[@potato-ld1uj]

Do you remember what it was called?

[@Radar23]

I'm completely lost watching your videos.. 😂