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Bortle 8 - Cassiopeia A. Faint supernova remnant. L-eXtreme. ASI2600MC Pro and RC6/reducer. 9 hours.

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#1 maxsid

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Posted 16 October 2021 - 08:15 PM

Cassiopeia A. Faint (and small) supernova remnant.

 

It's not in Stellarium nor in KStars catalogs but I noticed a hint of it in one of my photos of the area.

 

Shot over three nights from Bortle 8 front-yard.

October 12 - October 14, 2021. Half Moon.

 

RC6 with a reducer bringing it to 950 mm.

ASI2600MC Pro. -5C and 200 gain.

HEQ5 mount. Guided.

StellarMate on RPI4 to control things.

92x360s. 9 hours.

 

I plan to add another 9-10 hours when the Moon goes away

 

Stacked and pre-processed with APP. Finished with Photoshop.

Ha and Oiii extracted with APP and processed separately.

StarNet++ used.

 

4-hoo-psh-sm.jpg


Edited by maxsid, 16 October 2021 - 08:16 PM.

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#2 maxsid

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Posted 16 October 2021 - 08:20 PM

Cropped

4-hoo-psh-crop-sm.jpg

 


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#3 wizbang396

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Posted 16 October 2021 - 08:23 PM

Actually a very nice image which  I appreciate seeing "something out of the norm".  Beautiful image.



#4 maxsid

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Posted 16 October 2021 - 08:34 PM

Thanks!

I wonder how it's going to look at 20 hours.

At 9 hours the red nebulosity started to develop (it wasn't there at 5 hours).

Too bad I am at Bortle 8 : (


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