Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  PGC 137160  ·  PK122-04.1
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Abell 2, 



    
        

            Gary Imm
Abell 2, 



    
        

            Gary Imm

Abell 2

Getting plate-solving status, please wait...
Abell 2, 



    
        

            Gary Imm
Abell 2, 



    
        

            Gary Imm

Abell 2

Acquisition details

Dates:
Oct. 9, 2020 ·  Oct. 10, 2020 ·  Oct. 11, 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: 24×300(2h) (gain: 300.00) -20°C bin 1×1
Astrodon OIII 3nm: 24×300(2h) (gain: 300.00) -20°C bin 1×1
Integration:
7h
Avg. Moon age:
22.63 days
Avg. Moon phase:
44.95%

RA center: 00h45m34s.825

DEC center: +57°5733.83

Pixel scale: 0.282 arcsec/pixel

Orientation: -3.459 degrees

Field radius: 0.122 degrees

More info:Open 

Resolution: 2461x1891

File size: 888.3 KB

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

Data source: Backyard

Description

This object is a planetary nebula located 13,000 light years away in the constellation of Cassiopeia at a declination of +58 degrees. This PN spans 0.5 arc-minutes in our apparent view, which corresponds to a diameter of 2 light years.

Not much has been written about this object. The central star is barely visible. The nebula structure is similar to a smaller version of M97 (Owl Nebula) – round, primarily oxygen, and two dark circular voids in the inner region which are likely caused by bi-polar jets from the central star. Several PN appear like this, is a class that I refer to as the Owl Texture. Typically with this texture, one void is slight darker than the other, the darker void being pointed more towards our line of sight.

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