|
To me it looks like refracted moonlight from high atmospheric ice crystals - just like a rainbow.
I whitnessed the very rare 42degee halo around the Sun a couple of months ago. From the position of the Moon last night relative to M83, you may have fluked a chance viewing of the same refractive phenomenon that would really would only have been visible in a long exposure photo. "Sun Dogs" look similar in structure as the artefact you've got in your image.
May be annoying, but if it is what I suspect, you've really got one lucky chance photo!
Mental.
|