M81 and 82
Kevin Phillips
drja...@aol.com
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Kevin Phillips
Sent: Tuesday, 28 July 2026 17:08:36
To: croydo...@googlegroups.com <croydo...@googlegroups.com>
Subject: Re: [croydonastro - 8279] M81 and 82
Kevin Phillips
Sent: Tuesday, 28 July 2026 20:41:38
To: croydo...@googlegroups.com <croydo...@googlegroups.com>
Subject: Re: [croydonastro - 8280] M81 and 82
tcos...@gmail.com
Hi Kevin
An excellent image of M81 and M82 which has lovely detail and beautifully balanced colour in both galaxies.
I agree with James that the long exposure time has definitely helped here as has your excellent processing.
Well done!
Tim C
From: 'drja...@aol.com' via croydonastro <croydo...@googlegroups.com>
Sent: 28 July 2026 17:09
To: croydo...@googlegroups.com
Subject: Re: [croydonastro - 8279] M81 and 82
Hi Kevin. That is excellent detail, with the long total exposure and deft processing to thank.
To view this discussion visit https://groups.google.com/d/msgid/croydonastro/568362208.3020177.1785254916755%40mail.yahoo.com.
Kevin Phillips
Sent: Tuesday, 04 August 2026 20:44:17
To: croydo...@googlegroups.com <croydo...@googlegroups.com>
Subject: RE: [croydonastro - 8284] M81 and 82
tcos...@gmail.com
You’re very welcome Kevin
I’ve also been catching up with your image of the M13 globular cluster in Hercules. That’s another very nice image of this famous summer target. I think that globular clusters are quite difficult to image because their cores are very bright, but the peripheral stars are much less bright. It’s difficult to balance the large difference in contrast between the two areas, but you have managed it admirably in your image. You’ve also captured the blue colour of the hot young stars in the cluster, so very well done!
Tim C
Kevin Phillips
To: croydo...@googlegroups.com <croydo...@googlegroups.com>
Subject: RE: [croydonastro - 8286] M81 and 82
tcos...@gmail.com
It is normal although unexpected, given that globular clusters are thought to be very ancient and don’t contain any new star forming material.
Wiki article on ‘blue stragglers’
Kevin Phillips
To: croydo...@googlegroups.com <croydo...@googlegroups.com>
Subject: RE: [croydonastro - 8288] M81 and 82