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When I just got my first telescope back in December, the Triangulum galaxy was one of the first objects I was trying to find. But with my lack of knowledge of the sky, and the brightness of certain objects, I never succeeded, and before long it wasn't in the sky at night anyway.
    I had a clear night a few days ago, and my initial target (Bode's Galaxy) went behind a tree, and some clouds obscured the western sky. Checked stellarium to see what else would be of interest to capture, and coincidentally M33 had just risen above the roof of my house. Wasn't sure well it would show up in images, as I seem to remember it being a galaxy that really shines when imaging Ha. But even in short exposure test shots, I could see the core and line it up, so I gave it a go! 
    I had a few technical difficulties during the night, with my laptop not recognizing the port that my mount was connected to, so guiding wasn't a possibility. At least not without restarting the mount/pc, which I didn't quite feel like, so I went with 2 minute unguided shots, with which I accumulated 55 usable ones (Like 6 of them had satellites go through them, but I used them anyway. And if you look closely they are still barely visible).

I was able to pull more out of it than I expected, and this is definitely one I will revisit as my experience and capabilities grow!

Skywatcher 150P-DS
Celestron AVX Mount
Nikon D5200
2 Minute Exposures
55 Subs
1 Hour 50 Minutes Integration Time
ISO 3200

Manually Stacked and Processed in Photoshop CS2 (My relationship with DSS isn't that good)


Any advice or question is veeery welcome, as this hobby is still in its infancy for me!


Edited by The-MathMog
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Well done. Like most galaxies the Ha emission here is confined to small patches of star forming (or sometimes to jets, though not in M33.) So Ha can be a good 'accessory' for the red channel but won't find the entire galaxy.

One thing jumps out straight away: the image is black clipped, so in this processing you've discarded a lot of faint data from the galaxy and rendered the sky jet black. I'd advise you to go very easy indeed on moving the black point to the right and I wouldn't let the background sky drop below 23/23/23 (using the Ps colour sampler tool.)


PS If you want a reasonably priced, fast, intuitive and transparent programme for stacking and calibrating it is hard to beat AstroArt 6. It has excellent cosmetic repair tools as well so you can use data with aircraft and satellite trails.

Edited by ollypenrice
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