Galaxy Zoo Talk

Green Line

  • Marcel_R. by Marcel_R.

    What can this green line be?
    Just dust?

    Posted

  • Capella05 by Capella05 moderator

    That green line is a satellite trail 😃 See the zoomed out image below:

    enter image description here

    Satellites move quickly across the sky as the field is being imaged, and because they reflect light from the sun, we see a long streak in a single colour (or filter). They can also tumble / rotate - in that case we get an intermittent line.

    Hope this helps!

    Posted

  • ElisabethB by ElisabethB moderator

    The green line is a satellite trail. The satellite reflects the sunlight and because if of its speed it only gets caught in one filter. Nice catch ! 😄

    Posted

  • ElisabethB by ElisabethB moderator

    Opps, double post ! 😄

    Posted