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Sculptor Galaxy, my 1st autoguided image.
Hi All,
Sculptor galaxy, NGC 253, two nights ago from Taupo New Zealand. This is my first successful autoguided image, and the first astronomy image I have posted online in any public forum. I started my astronomy hobby about 6 months ago. Comments welcomed.
Taken through my Celestron C8-SGT XLT (C8 XLT OTA on CG-5GT goto eq mount), with f6.3 reducer, Canon 60D DSLR (unmodified) at ISO 1600, guided by Orion 50mm mini guidescope and SSAG, using PHD guiding software on a netbook.
10 x 3 minute subs,
5 darks, 5 flats (two layers of white tee shirt cloth stretched over aperture and led flashlight shone on it), and biases.
Canon Raw images stacked etc in Deep Sky Stacker and resulting tif image then processed in Photoshop Elements 9.
I also have a question. If I use DSS to wind up the saturation after stacking, the galaxy gets a strong green tone (but stars don't), whereas if I use Photoshop Elements to turn up the saturation I get a much more "balanced" colour in the galaxy. Any ideas why DSS saturation is giving the galaxy a green cast? I had exactly the same thing happen with an unguided image of the Sombrero galaxy taken some months ago.
Cheers,
Chris
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