ngc2403 - 332 60 secs unguided subs taken during the night of the 31st of May 2022 (Stefano Ciapetti)

Celestial hemisphere: Northern · Constellation: Camelopardalis (Cam) · Contains: NGC 2403 · NGC 2404

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ngc2403 - 332 60 secs unguided subs taken during the night of the 31st of May 2022

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ngc2403 - 332 60 secs unguided subs taken during the night of the 31st of May 2022

This image is the sum of 332 60 secs unguided subs taken during the night of the 31st of May 2022. Setup was Newton Orion USA 250 F 3.9, Omegon coma corrector, QHY268m, Primalucelab uhc filter on top of a Ioptron CEM60EC. Aquisition, stacking and processing with Astroart 8. No darks used. 8 Flats. Very limited processing. Only some deconvultion to correct stars elongation. Elongation happened due to some wind coming between 2 to 3 am (images in that hour had elongated stars).

NGC 2403 (also known as Caldwell 7) is an intermediate spiral galaxy in the constellation Camelopardalis. It is an outlying member of the M81 Group, and is approximately 8 million light-years distant. It bears a similarity to M33, being about 50,000 light years in diameter and containing numerous star-forming H II regions. The northern spiral arm connects it to the star forming region NGC 2404. NGC 2403 can be observed using 10×50 binoculars. NGC 2404 is 940 light-years in diameter, making it one of the largest known H II regions. This H II region represents striking similarity with NGC 604 in M33, both in size and location in galaxy. (Wikipedia)

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Description: Added color information from 147 x 120 secs taken with a C5 reduced to F 6.3 and a modded Nikon d5600

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Suburban Astrophotography
Imagers of Italy
Fast Newtonians

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Status	Advanced success
Started	...
Astrometry.net job	5836045
PixInsight job	YL2108MNK81T72PW4HLTRH877NO4ZVH0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h36m47s.282
RA (top/left)	07h36m59s.999
RA (top/right)	07h33m14s.905
RA (bottom/right)	07h36m34s.407
RA (bottom/left)	07h40m16s.551

Dec (center)	+65°34′15″.64
Dec (top/left)	+65°09′21″.60
Dec (top/right)	+65°46′10″.64
Dec (bottom/right)	+65°59′10″.82
Dec (bottom/left)	+65°22′02″.82

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ngc2403 - 332 60 secs unguided subs taken during the night of the 31st of May 2022

ngc2403 - 332 60 secs unguided subs taken during the night of the 31st of May 2022

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ngc2403 - 332 60 secs unguided subs taken during the night of the 31st of May 2022

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