Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  IC 1454  ·  IC1454  ·  PK117+18.1
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Abell 81 Planetary Nebula (IC 1454), 



    
        

            Jerry Macon
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Abell 81 Planetary Nebula (IC 1454)

Getting plate-solving status, please wait...
Abell 81 Planetary Nebula (IC 1454), 



    
        

            Jerry Macon
Powered byPixInsight

Abell 81 Planetary Nebula (IC 1454)

Imaging telescopes or lenses: Orion Optics UK AG12

Imaging cameras: ZWO ASI178MM-Cool

Mounts: Paramount MEII with Absolute Encoders

Guiding telescopes or lenses: Orion Optics UK AG12

Guiding cameras: Starlight Xpress Lodestar X2 Mono

Software: Nighttime Imaging ‘N’ Astronomy N.I.N.A.  ·  PixInsight 1.8  ·  PHD Guiding 2

Filters: Astrodon 36mm Ha (5nm) OIII (5nm)  ·  Astrodon Gen 2 RGB 36mm


Dates:Sept. 21, 2020Oct. 1, 2020Oct. 5, 2020

Frames:
AstroDon 5nm Ha filter: 25x300" (2h 5') (gain: 200.00) -15C bin 1x1
AstroDon 5nm Oiii filter: 25x300" (2h 5') (gain: 200.00) -15C bin 1x1
Astrodon Gen 2 RGB 36mm: 175x20" (58' 20") (gain: 200.00) -15C bin 1x1

Integration: 5h 8' 20"

Avg. Moon age: 12.35 days

Avg. Moon phase: 70.29%

Bortle Dark-Sky Scale: 3.00

Temperature: 8.00


Astrometry.net job: 4486951

RA center: 22h 42' 17"

DEC center: +80° 26' 14"

Pixel scale: 0.442 arcsec/pixel

Orientation: -90.997 degrees

Field radius: 0.229 degrees


Resolution: 3096x2080

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

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

Abell 81 (PK117+18.1) is a rarely imaged planetary nebula in Cepheus. This is the fifth image on Astrobin. Abell81 is very small, measuring 0.6 arc minutes and has a magnitude listed at 14.0. It is very bright for an Abell PN, with the RGB image showing a very strong image of the PN. Both Ha and Oiii make a good contribution, with the Oiii stronger resulting in a teal color.

The PN measures only 0.6 arc minutes, however, the Oiii forms a distinct, but very faint uniform circular halo with a diameter of 1.6 arc minutes. I do not think this halo has ever been noted in any of the published images of this Abell.

My Collections:

Abell Planetary Nebulae

Planetary Nebulae

Galaxies

Sharpless 2 Objects

Comments

Sky plot

Sky plot

Histogram

Abell 81 Planetary Nebula (IC 1454), 



    
        

            Jerry Macon