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Peter.M
18-08-2012, 05:13 PM
I took some photos from my place last night to try a few things out, the first of which was doing LRGB from my house without a moon. The second was to use flats from a different night of imaging. I think with some targets I might get away with doing LRGB from my place, but the flat idea was a bad idea. I will just take new ones each session.

This is a quickie of m20

15 minutes of each filter
3x5min luminance
5x3min RGB

Rigel003
18-08-2012, 05:29 PM
Very nice result Peter. Presumably you could do more short subs if the weather allowed without any ill effects from the light pollution.

Peter.M
18-08-2012, 05:39 PM
Yea, I got these last night from about 1030 till midnight, then it clouded over. Shorter subs seemed to work better from my place, but there was still a horrible gradient. Its amazing how much the light pollution effects the photo.

Rex
18-08-2012, 09:40 PM
Nice detail Peter. You did well to produce such a great pic a from light poluted skies.

Paul Haese
19-08-2012, 09:48 AM
Good detail and star colour is good but the emission nebula is a bit orange. Otherwise a pretty good result.

Mighty_oz
19-08-2012, 10:02 AM
Nice pic from suburbia :) How close to the cbd are u, i'm thinking of doing the same to see what it's like and i'm about 10k from Perth cbd

Marcus.

Peter.M
19-08-2012, 10:57 AM
Thanks guys, I struggled a bit with the red emission colour maby adding some HA could have helped me get that red I wanted. The other area that was a bit of a pain was the right half of the images background is noticeably more blue than the left.

I live about 15 km as the bird flies from Adelaide. I was really happy with the star colour, and I seem to be getting more reproducible results night to night with collimation and coma. At the end of the day I probably wont do any LRGB projects from my house but I know when I get full narrowband filters that i can add RGB stars to the mix reliably.

alpal
19-08-2012, 11:44 AM
Nice pic Peter.
You've done well with that QHY9.

I hear that the QHY22 will be out soon with
latest Sony super sensitive chip – ICX694.
It is however maybe a bit small:
Resolution: 2750 x 2200 pixels; Pixel size: 4.54µm x 4.54µm; Imaging area: 12.49mm x 9.99mm

Ross G
19-08-2012, 10:13 PM
A great capture Peter, especially considering the suburban light pollution.

Ross.