Disk Detective Talk

Why is there a black blob/circle in DSS images?

  • Zooniverse99 by Zooniverse99

    on frame 3 there is a black line with a blob on the end of it. As it does not go right across the page am I correct in thinking this would not be a trail?

    Posted

  • TED91 by TED91 moderator

    This is most likely dust on the original photographic plate. More here: http://talk.diskdetective.org/#/boards/BWI0000002/discussions/DWI00000ot

    Posted

  • Zooniverse99 by Zooniverse99

    Thank you

    Posted

  • marckuchner by marckuchner scientist, admin

    @TED91 is right! Asteroid trails will show up as positive (white,blue) signal (not black).

    Posted