green line

• by louisssss

  a thick green line goes through the picture and i have no idea what it could be??

  Posted May 29, 2014 12:52 PM

• by JeanTate

  Welcome to Galaxy Zoo, louisssss!

  It's a satellite trail, a kind of artifact where a satellite (or aeroplane, or meteor) passed through the field of view of the camera's r-band filter. There are also red and blue trails like this.

  Happy hunting! 😃

  Posted May 29, 2014 12:56 PM

• by louisssss

  thanks for the help it makes sense now :p

  Posted May 29, 2014 12:59 PM