Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What would make a star flash red and blue?

  1. Jan 11, 2008 #1
    Hello, several nights ago I was outside looking at the sky. I noticed this strange looking star near the horizon, and I swear to you, it kept flashing from red to blue and back. I vaguely remember reading something about this, but I don't quite remember what it was.
  2. jcsd
  3. Jan 11, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Atmospheric distortion causes the light to spread out into its various colors. Bad seeing close to the horizon that night.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook