Galaxy Zoo Talk

What is it ??

  • Dr_Debilotnik by Dr_Debilotnik

    What's that long green bar ? I don't know how to link the picture to the discussion so I give its ID on Sky Server : 1237655349427437744

    Is it a malfunction on the visual instruments ?

    Posted

  • ElisabethB by ElisabethB moderator

    Hi Dr Debilnotnik and welcome to the Zoo

    The green stripe is a satellite trail As the satellite catches the sunlight and because of its speed it only gets caught in one filter.

    But just a question, did you get this image to classify ? Because we are now classifying single band filters only.

    Happy hunting ! ๐Ÿ˜„

    Posted

  • Dr_Debilotnik by Dr_Debilotnik

    Thank you Elizabeth for your quick answer and your clear explanation ๐Ÿ˜ƒ
    Actually, this image wasn't to classify, I was just taking a look randomly on Sky Server and I found this strange bar. ๐Ÿ˜‰
    Have nice day !

    Posted

  • Dr_Debilotnik by Dr_Debilotnik

    I note that these satellite trails are in fact relatively quite common and appear on different colors.
    For those who might be interested :

    • example of a green trail, different from the first one : 1237650761324101799
    • example of a red trail : 1237655493294555293
    • example of a blue/violet trail : 1237655493294293069

    Posted