petevasey Posted April 24, 2015 Share Posted April 24, 2015 3 clear nights in a row - what's going on? Alas the Moon was starting to wax but 22nd April was clear and steady, so I visited the barred spiral galaxy NGC 4725 in Coma Berenices. This bright (magnitude 9.3) galaxy is particularly unusual in having only one spiral arm which ends up in a cloudy halo. The smaller neighbouring galaxy is NGC 4712, and is unrelated, being much further away.QSI 683 on RC10 at f8. Luminance 10 x 10 minutes, RGB each 4 x 10 minutes, all binned 2x2. Off-axis guided with Lodestar X2 and Starlight Xpress AO unit. North approximately up in this orientation, governed by the requirement for a suitable guide star. Full size athttp://www.madpc.co.uk/~peterv/astroplover/QSIpics/Large/NGC4725.jpg Link to comment Share on other sites More sharing options...
PNJ Posted April 24, 2015 Share Posted April 24, 2015 lovely image Peter, i do like the colours, be interesting to see if there is some Ha regions in the Arms too, maybe you might get a chance to try Hapaul J Link to comment Share on other sites More sharing options...
petevasey Posted April 25, 2015 Author Share Posted April 25, 2015 Thanks, Paul,Yes, maybe a bit of H-a. But the weather ain't too kind at the moment, the Moon is getting brighter and it's going to be perpetual twilight until August. Still, worth a try - the magic of narrowband might do the trick ;-)Cheers,Peter. Link to comment Share on other sites More sharing options...
Sarah and Colins Astro Posted April 25, 2015 Share Posted April 25, 2015 Brilliant image, such great detail, thanks for sharing :-) Link to comment Share on other sites More sharing options...
SteveA Posted April 25, 2015 Share Posted April 25, 2015 Terrific image Peter.....well done! Link to comment Share on other sites More sharing options...
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