what

• by onibaku

  what is it?

  Posted January 18, 2014 12:03 AM

• by JeanTate

  a satellite trail, a kind of artifact

  Posted January 18, 2014 1:47 AM

• by cecilia_guiez

  dicen que es un satelite???

  Posted January 19, 2014 2:34 PM

• by ElisabethB moderator

  Could also be a diffraction spike (optical artifact) caused by a bright star outside of this image.

  Posted January 19, 2014 2:37 PM