What is jt?

• by Supereyes

  What is the shadow in the low left part of the image.

  Posted December 26, 2016 8:41 PM

• by Budgieye moderator

  The galaxy is nearly edge-on, so the dust lanes are becoming visible. You only see dust lanes in the nearer part of the galaxy, because the light of the galaxy has to shine through it to make a shadow.

  

  http://skyservice.pha.jhu.edu/DR9/ImgCutout/getjpeg.aspx?ra=17.47800204&dec=-2.8251732&scale=0.09903175&width=512&height=512&opt=&query=

  http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=17.477981399922076&dec=-2.8252254566112094

  Posted December 26, 2016 11:13 PM

• by Supereyes

  Thank you but, I'm sorry, i told about the coloured cloud at the left of the galaxy . What is it?

  Posted December 27, 2016 6:16 AM

• by Budgieye moderator

  There is a round dark area to the bottom left of the galaxy. These images are heavily processed. Probably an area where there was a cosmic ray hit, software cut out the area, removed the hit, and then pasted it back in, but the colours don't match.

  For me, I just don't see these areas anymore.

  Posted December 27, 2016 7:19 AM

• by Supereyes

  Thanks

  Posted December 27, 2016 7:23 AM