fielded a query about a Moon photo

Yet another query came in via the RASC national web site observing form.

This time the person felt that in a photograph of the Moon they captured a shadow cast from another planet. 

Um...

I offered to look at the photo.

Unfortunately it was a shakey, hand-held, zoomed out, out-of-focus, low resolution, overexposed shot from a smart phone and saved in JPG.

Just an artefact, I argued.

Keep trying.