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View Full Version here: : Coma Berenices with 85mm lens


Lester
19-04-2012, 11:20 AM
Hi all, got this region while trying for a couple of faint comets. It is 20x2 minute exposures with 85mm lens at f2 and 20Da camera at ISO 800. I managed to track down a couple of galaxies 17 and 18 magnitude at the bottom of the FOV.

If anyone can identify the nebula (faint) above M64 I would be grateful.
All the best.

http://i638.photobucket.com/albums/uu109/Lester_045/wide%20field%20Astro%20images/fb578507.jpg

mithrandir
21-04-2012, 10:21 AM
Lester, I've tried solving this with Unimap and with astrometry.net. Neither can identify it, even if I go as far as the USNO-B1 catalog. I suspect that some part of the stacking has altered the geometry. Have you got an unprocessed frame to try? If you can get the RA/Dec from that frame you can look the co-ords up in Vizier.

It's another perfect day in Sydney for reading emails, books, plate solving, ...

Lester
21-04-2012, 01:42 PM
Hi Andrew, the streak is there on the RAW image, but ever so faint. Thanks.