Parallax

I made this animated gif on the plane ride back from a conference last year. Someone had it in a talk I saw and I couldn't find a version of it online, so I had to make my own. I need to re-make it with proper resolution, as it looks grainy and ugly. Still, it nicely demonstrates how parallax works in astronomy. You know the stars that move left/right the most are close. The stationary red circles are my "very distant background quasars". In the bottom left corner you see a representation of the Earth (blue) going around the Sun (yellow).





2 comments:

  1. Replies
    1. You get the same kind of effect by blinking your eyes back and forth, or moving your head in a circle. Or are you asking how I did this computationally?

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