Index

Parallax

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Parallax movement is relatively easy to detect using photography. Pairs of simulated images*, taken six months apart, are shown here as examples. Examine them by clicking the links. Notice that the nearby star is easy to spot when the images are blinked.

Source: Parallax Lab at University of Washington



*Actual stars also have proper motions. The images used here deliberately omit it.
[Star A] [Star B]

Star B

Image 1
Image 2

[Side by Side] [Blinked Pair]