Having run across a box in my attic, a pic of a Comet. Nothing spectacular , another Comet pic.
My notes don't indicate the Comet's observations or film used , just the stamp on the back is DEC872413 , likely processed by fox photo. Probably shot a month earlier when higher in the sky.
I can tell it's fairly fast color film , grainy and there is lots of LP - shot from Oakland Ca 1987. Few background stars.
Pretty sure that it is Bradfield C1987/P1
Got GUIDE9 and a few other programs open trying to match this up.
I do not know if it was taken at prime focus or a piggybacked telephoto lens. So I would have to compare the background stars both revered E/W and normal orientation.
Is there any easier way besides painstakingly comparing background star-fields in the Comet's path to make positive ID on an unlabeled pic?