Space Warps Talk

by jakey2002322

what is the blue streak on my picture?

Posted January 7, 2014 9:16 PM
by Budgieye moderator

a spike from a very bright star.More information on the spotter's guide.

Posted January 7, 2014 9:35 PM
by ElisabethB moderator

The blue streak is probably a diffraction spike (optical artifact) from a nearby star, just outside of this image

Posted January 7, 2014 9:35 PM

Subject: ASW000a63u

by jakey2002322

not sure what the blue and green might be a fault or something interesting

Posted January 7, 2014 9:14 PM
by ElisabethB moderator

Definitely artifacts. The blue is probably a diffraction spike from a very bright star just outside of this image

Posted January 7, 2014 9:15 PM
by jgeach scientist

green is probably a moving object like a satellite that appeared in the J-band image

Posted January 7, 2014 9:16 PM
by ClintonRogers_

Do you want us to highlight artefacts.

Posted January 7, 2014 9:19 PM
by Capella05 moderator

No, just gravitational lenses 😄

Posted January 7, 2014 9:20 PM
by vrooje

You can tag it here as #artifact or #artefact if you like. We'll use that information to help train computers to find them!

Posted January 7, 2014 9:21 PM