By Trevor Clifton
During the evening of Saturday 14th April while commissioning a 150mm refractor some images were taken of M51. After processing the LRGB images and comparing the final image with stock internet images an object was spotted in our image which did not appear in those downloaded from the net.
Checking the subs, the mystery object only appeared in the first 120 second luminance image.
Searches to see if any asteroids were listed at these coordinates drew a blank. Clearly, the object is not a hot pixel so what is it? One explanation is that its a meteor trail which is head on to the field of view.