Heart Nebula IC1805 (matthew.maclean)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · IC 1805 · NGC 896 · Sh2-190

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Heart Nebula IC1805

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Heart Nebula IC1805

Heart nebula is one of my top three favorites and I've been waiting to do a good attempt at it. I tried some different things this time and learned a lot in the process. The weather has been quite dynamic as we transition to fall and the wildfire smoke all the way from the west made imaging difficult in the last new moon cycle. So, the data isn't the best quality, but I think I've done the best I can with what I've had to work with.

I collected a lot of Hydrogen-alpha data with my OSC camera, which I know isn't efficient, but I wanted to try it. I got something useful from it. I wanted a color image, so I augmented with some additional broadband capture just for star color. Once stacked and registered, merging them was a learning process to keep the stars from turning red. I discovered that the newest PixInsight has StarNet++ built-in, which worked fabulously to remove stars from my H-alpha stack and use pixelmath to blend the result with the broadband. In the process, I learned a lot more about PixInsight and managed to do some noise removal/smoothing with the MultiscaleMedianTransform tool. I'm definitely not an expert with it yet, but I made a lot of progress in understanding it. The result might be a little over-smoothed, but I like it. Definitely still one of my favorite objects (Heart, Trifid, and Andromeda are my top three....)

Original
B
Final
C

B

Description: Slightly darkened the background. My Tiff looked fine on my screen, but the first JPG uploaded to AstroBin looked a little washed out.

Uploaded: ...

C

Description: Went back and cleaned up the background gradient a little more carefully and tried to keep the final nebula color about the same.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	3903227
PixInsight job	VTDAHS8WA2GVUHTCXHD519SAXQYEV7WJ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h31m57s.55
RA (top/left)	02h39m25s.80
RA (top/right)	02h38m58s.21
RA (bottom/right)	02h23m57s.55
RA (bottom/left)	02h25m27s.87

Dec (center)	+61°21′42″.5
Dec (top/left)	+60°14′58″.6
Dec (top/right)	+62°32′16″.9
Dec (bottom/right)	+62°26′46″.2
Dec (bottom/left)	+60°09′53″.0

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Heart Nebula IC1805

Heart Nebula IC1805

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Heart Nebula IC1805

Heart Nebula IC1805

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