Hemisphere:  Southern  ·  Constellation: Monoceros (Mon)  ·  Contains:  PK216-00.1
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Abell 18 Planetary Nebula, 



    
        

            Jerry Macon
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Abell 18 Planetary Nebula

Getting plate-solving status, please wait...
Abell 18 Planetary Nebula, 



    
        

            Jerry Macon
Powered byPixInsight

Abell 18 Planetary Nebula

Imaging telescopes or lenses: PlaneWave Instruments CDK14

Imaging cameras: ZWO ASI6200MM-PRO

Mounts: Paramount MEII with Absolute Encoders

Guiding telescopes or lenses: PlaneWave Instruments CDK14

Guiding cameras: Starlight Xpress Lodestar X2 Mono

Software: Nighttime Imaging ‘N’ Astronomy N.I.N.A.  ·  PixInsight 1.8  ·  StarNet++ .

Filters: Chroma 3nm Oiii 50mm  ·  Antlia RGB 50mm  ·  Antlia Ha 3nm 50mm


Dates:Feb. 21, 2021Feb. 22, 2021Feb. 28, 2021

Frames:
Antlia Ha 3nm 50mm: 140x30" (1h 10') (gain: 100.00) -15C bin 1x1
Antlia RGB 50mm: 140x30" (1h 10') (gain: 100.00) -15C bin 1x1
Chroma 3nm Oiii 50mm: 29x300" (2h 25') (gain: 100.00) -15C bin 1x1

Integration: 4h 45'

Avg. Moon age: 11.60 days

Avg. Moon phase: 79.82%

Bortle Dark-Sky Scale: 3.00

Temperature: -5.00


Astrometry.net job: 4271576

RA center: 6h 56' 14"

DEC center: -2° 53' 12"

Pixel scale: 0.302 arcsec/pixel

Orientation: -89.906 degrees

Field radius: 0.413 degrees


Resolution: 8208x5452

Locations: Dark Star Observatory, Taos, New Mexico, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

Abell 18 (PK216.00.1) is a small planetary nebula in Monoceros, measuring only 1.2 arc-minutes across. It is round with an outer Ha rim and inner Oiii area, with no visible progenitor star. Its magnitude is listed as 17.5, but seems much stronger than that for my image. The pure RGB image shows it well but dim. Ha and Oiii are of equal strength. The color of this Oiii/Ha enhanced version exactly matched the color displayed in the RGB version.

This PN is very rarely imaged, this being all I could find on the web.

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Abell 18 Planetary Nebula, 



    
        

            Jerry Macon