You need to enable JavaScript to access XKCD comics using this app.
#3219
Planets and Bright Stars
Previous
←
Latest
L
Random
R
Title Text:
An old astronomer trick for distinguishing the Sun from other stars is to take multiple photos a few minutes apart and overlay them, making the Sun stand out due to its high proper motion.
Published on:
3/13/2026
XKCD Link:
https://xkcd.com/3219
Explain XKCD Link:
http://www.explainxkcd.com/wiki/index.php/3219