Blue dot

• by Madelief

  What is the blue dot?

  Posted April 20, 2013 12:20 AM

• by Padme-1

  Artifact.This is a star but something went wrong with imaging.

  Posted April 20, 2013 1:40 AM

• by c_cld

  colored composite #star with #misaligned band filter images;
  blue channel of I-band offset from J-band (green) and H-band (red)

  Posted April 20, 2013 8:13 PM