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View Full Version here: : The Southern Pinwheel Galaxy - M83

PhotonCollector
29-03-2007, 10:12 PM
Hi all,

Here's an image I did last week of the Messier 83 galaxy (NGC 5236).
It wasn't the best of weather conditions, gusty winds, lots of sky fog and the usual Friday night light pollution, though the image still turned out reasonable well.

There's a higher resolution version of this image at
http://www.skylab.com.au/pmsa/ngc5236b.html

The image was a 40 min autoguided exposure (20 x 2min subs) using my 12" GSO scope, you can see the rest of the imaging equipment details at the above link.

I'm planning to have another attempt at M83 but this time with a lower ISO setting and much more exposure time.

cheers
h0ughy
29-03-2007, 10:21 PM
fantastic Effort Mr Mayo!!!!!!!!!!!!
Gama
30-03-2007, 12:29 AM
Magic.

Very well done.

Theo
ballaratdragons
30-03-2007, 01:08 AM
Very nice Paul.

Much better than mine from last week, but totally different cameras too. I like the very fine detail you have captured. Excellent.
iceman
30-03-2007, 06:10 AM
Beautiful image, Paul.
Astroman
30-03-2007, 07:32 AM
Great image Paul, gives me a stepping stone on what exposures are needed, thanks.
Ric
30-03-2007, 07:59 AM
Lovely image Paul, the colours are excellent. They really bring it to life as they say.

Cheers
Phil
30-03-2007, 08:00 AM
very nice photo keep then caming
Phil
Garyh
30-03-2007, 08:20 AM
Very nice Paul...lovely colors in the galaxy and the stars!! well done for the conditions.
RB
30-03-2007, 12:02 PM
Excellent work there Paul.

Well done.
tornado33
30-03-2007, 01:17 PM
Theres lots of detail there in the arms, the dark nebulae bright nebulae and stars really show up well. Looks like the autoguiding is working very well.
Scott
PhotonCollector
30-03-2007, 11:06 PM
Great stuff - you all liked the image!

With the exposures Andrew [Astroman] while 2 minute long sub-exposures are fine I would however recommend longer subs to get more signal in each frame. In the 2 minute exposures I find there isn't quite enough signal (photons-collected) with the lower ISO settings.

However on the night I took these images I specifically shortened the exposure time to 2 minutes as the wind gusts kept blowing the telescope around, so I wanted to minimize the subs I would get with guiding errors and get at least some imaging done.

thanks all.