Abell 31 (Dan Gallo)

Celestial hemisphere: Northern · Constellation: Cancer (Cnc) · Contains: IC 523 · PK219+31.1 · Sh2-290

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Abell 31

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Abell 31

I tested out my new filter from Altair Astro - a QuadBand OSC narrowband filter. Unfortunately the clouds rolled in later in the night, so I could only capture 26 usable frames using the new filter. It's going to be cloudy for at least the next week, so I decided to just process it with some light frames I already captured using the Optolong L-eNhance filter.

In the limited data I captured, the Altair QuadBand filter does appear to help me get better results with my RASA - there is noticeably more faint red nebulosity in the Altair QuadBand light frames compared to the L-eNhance light frames.

When I've previously been processing data captured with the RASA and L-eNhance filter, I've noticed I don't always pick up much faint red nebulosity. I attributed this to the narrower bandwidth of the red channel (10nm). In comparison, the Altair QuadBand filter has a wider bandwidth of 35nm on the red channel.

I immediately noticed more red nebulosity in the light frames - it's faint (this target is faint anyway), but much more prominent than in the L-eNhance light frames captured under similar conditions a few nights prior.

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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	3368095
PixInsight job	85J8IWTHPV32TDRGJI5Q161651M2A14R
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	08h54m09s.25
RA (top/left)	08h51m47s.15
RA (top/right)	08h56m24s.49
RA (bottom/right)	08h56m31s.97
RA (bottom/left)	08h51m53s.40

Dec (center)	+08°55′33″.8
Dec (top/left)	+08°06′57″.1
Dec (top/right)	+08°05′46″.9
Dec (bottom/right)	+09°44′06″.10
Dec (bottom/left)	+09°45′17″.2

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Abell 31

Abell 31

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Abell 31

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