Galaxy Zoo Talk

Blue ball

  • jordanself10 by jordanself10

    What could this blue ball thing be? I feel like it is just a mistake from the purple line and stuff being there, but I was wondering if it could also maybe be an actual object.

    Posted

  • Budgieye by Budgieye moderator

    I think we would need the FITS files to sort this. This means going into the raw data.

    If you go into viewer and click on DECaLS DR2 CCDs , you will see that it is on a area where the images have been attached together, and they had to be stretched to make them fit.

    http://legacysurvey.org/viewer?ra=214.7964314040379&dec=-0.4687889584968377&zoom=14&layer=decals-dr2

    enter image description here

    Usually anything in these bad zones is not worth investigating, as the colours are wrong. This is strangely round and blue.

    enter image description here There is nothing on SDSS image taken 10 or so years earlier.

    http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=214.7964314040379&dec=-0.4687889584968377

    But NED shows that there is a source of UV light in that location.

    enter image description here UV source location in center of triangle.

    GALEXASC J141911.14-002810.9

    It may be the afterglow of an reported supernova.

    Posted