The Green Beem
Hello Please would you be able to help me?
I was having a go on Galaxy Zoo as David Bacon came into my school at Miltoncross and told us about it.
As I was looking through, this photo appeared and I was a bit confused on what the big green line was in the corner of the photo.
I hope you will be able to message me back on what it is and help me become unconfused.
Yours Faithfully Alanya17
Hi and welcome Alanya 😃
The green streak is a satellite trail 😃
Satellites sometimes pass overhead as the telescope is observing and reflect light in a streak across the image as they pass by.
They move quickly so their trails are always a single color: red, green, or blue. Sometimes you can classify the central galaxy, other
times there is no central galaxy because the computer got a bit confused.
Hope this helps!