Celestial hemisphere:  Southern  ·  Constellation: Puppis (Pup)
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Abell 23, 



    
        

            Gary Imm
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Abell 23

Getting plate-solving status, please wait...
Abell 23, 



    
        

            Gary Imm
Powered byPixInsight

Abell 23

Acquisition details

Dates:
March 10, 2020 ·  March 11, 2020 ·  March 12, 2020
Frames:
Astrodon Gen2 I-Series Tru-Balance Blue: 30×120(1h) (gain: 139.00) -20°C bin 1×1
Astrodon Gen2 I-Series Tru-Balance Green: 30×120(1h) (gain: 139.00) -20°C bin 1×1
Astrodon Gen2 I-Series Tru-Balance Red: 30×120(1h) (gain: 139.00) -20°C bin 1×1
Astrodon H-alpha 5nm: 18×300(1h 30′) (gain: 300.00) -20°C bin 1×1
Astrodon OIII 3nm: 18×300(1h 30′) (gain: 300.00) -20°C bin 1×1
Integration:
6h
Avg. Moon age:
16.81 days
Avg. Moon phase:
94.42%

RA center: 07h43m18s.470

DEC center: -34°4511.58

Pixel scale: 0.282 arcsec/pixel

Orientation: -0.926 degrees

Field radius: 0.198 degrees

More info:Open 

Resolution: 4051x3015

File size: 2.0 MB

Locations: Backyard (Mag 20.8 - Bortle 4.5), Onalaska, Texas, United States

Data source: Backyard

Description

This object is a very faint planetary nebula located 7500 light years away in the constellation of Puppis at a declination of -35 degrees. This nebula spans almost 1 arc-minute in our apparent view, which corresponds to an actual diameter of 2 light years.

The nebula is circular and primarily OIII signal, so appears mainly blue in this image. As seen in many PN, the outside rim is slightly stronger in Ha and therefore has a reddish hue. Little structure is apparent to me for this PN.

This is a very faint object and I need to add more integration time in order to bring it more clearly into focus. Its faintness plus its low position in the southern sky makes it a tough object for many of us to capture, which is probably why I could no other images of this object except for the SIMBAD atlas image.

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