NGC 4395 - low surface brightness spiral in CVn (Benny Colyn)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: NGC 4395 · PGC 166135 · PGC 2018430 · PGC 2019496 · PGC 2019623 · PGC 2020216 · PGC 2020328 · PGC 2020365 · PGC 2020487 · PGC 2020611 · PGC 2020671 · PGC 2020807 · PGC 2020835 · PGC 2021590 · PGC 2021625 · PGC 2022216 · PGC 2022351 · PGC 2022713 · PGC 2023043 · PGC 2023301 · PGC 2023575 · PGC 2023804 · PGC 2024490 · PGC 2024858 · PGC 2027776 · PGC 2027806 · PGC 2028424 · PGC 2028498 · PGC 2028573 · PGC 2028959 · And 41 more.

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NGC 4395 - low surface brightness spiral in CVn

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NGC 4395 - low surface brightness spiral in CVn

This was another tricky subject that I wanted to capture. The low surface brightness barely stands out above the background.

NGC 4395 is a nearby low surface brightness spiral galaxy located about 14 million light-years (or 4.3 Mpc) from Earth in the constellation Canes Venatici. The nucleus of NGC 4395 is active and the galaxy is classified as a Seyfert Type I known for its very low-mass supermassive black hole.

Data from 2020-04-25, 2022-02-25 and 2023-04-19 of 2h each. I used the best nights of those seasons for this, I measured a better-than-usual SQM of around 19.2 - 19.3 when capturing the subs.

Astrophotographers of Belgium
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Celestron RASA
ZWO ASI183/QHY183
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Suburban Astrophotography

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Status	Advanced success
Started	...
Astrometry.net job	7889583
PixInsight job	P753B0KWAUTVY0YYA3JYKPZQBNAHOEBJ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h25m48s.58
RA (top/left)	12h30m04s.48
RA (top/right)	12h21m14s.30
RA (bottom/right)	12h21m36s.86
RA (bottom/left)	12h30m19s.91

Dec (center)	+33°32′12″.7
Dec (top/left)	+34°10′11″.8
Dec (top/right)	+34°04′00″.6
Dec (bottom/right)	+32°53′41″.7
Dec (bottom/left)	+32°59′49″.9

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NGC 4395 - low surface brightness spiral in CVn

NGC 4395 - low surface brightness spiral in CVn

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NGC 4395 - low surface brightness spiral in CVn

NGC 4395 - low surface brightness spiral in CVn

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