Disk Detective Talk

Mysterious object

  • TED91 by TED91 moderator

    I wonder what is the source of contamination in WISE 4 image.

    Skyview:

    Image size 0.02 degrees

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    Image size 0.1 degrees

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    Posted

  • lrebull by lrebull scientist, translator, admin

    I'm not sure - there is something goofy with some of the coordinates in here and we are actively working to track it down and fix it. So this thing may not actually be at the coordinates you get when you look in the SIMBAD link, sigh. (Frustrating, I realize; for me too!)

    Posted

  • TED91 by TED91 moderator in response to lrebull's comment.

    I know, I also noticed that. Coordinates are really a bit shifted. The correct coordinates for the Skyview images that I posted here I got from Aladin Sky Atlas.

    Posted

  • TED91 by TED91 moderator

    I think that artifact in WISE 3 and 4 is "ghost artifact" caused by very bright star. The nearest that kind of star is zet UMi. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=zet+UMi&NbIdent=1

    enter image description here

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    Bigger area:

    http://i1319.photobucket.com/albums/t662/Ted_91/Disk Detective/AWI000031k-3_zps9a49895a.png

    Posted