Hemisphere:  Northern  ·  Constellation: Cancer (Cnc)  ·  Contains:  IC 523
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SH2-290, ABELL 31, 



    
        

            Anne-Maree McComb
SH2-290, ABELL 31
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SH2-290, ABELL 31

Getting plate-solving status, please wait...
SH2-290, ABELL 31, 



    
        

            Anne-Maree McComb
SH2-290, ABELL 31
Powered byPixInsight

SH2-290, ABELL 31

Technical card

Imaging telescopes or lenses: Sidereal Trading Carbon Fibre modded 250/1200 Reflector

Imaging cameras: ZWO ASI 1600MM-Pro

Mounts: SkyWatcher EQ6 R Pro EQ6-R

Guiding telescopes or lenses: Sidereal Trading Carbon Fibre modded 250/1200 Reflector

Guiding cameras: ZWO ASI 120MM-S ZWO 120 MM-S

Software: PHD 2 Guiding PHD2 Guiding  ·  Adobe Photoshop 2019  ·  NINA  ·  Pixinsight

Filters: Astrodon Ha 3nm  ·  Astrodon Oiii 3nm  ·  Astrodon Red Tru-Balance E-series  ·  Astrodon Blue Tru-Balance E-series  ·  Astrodon Green Tru-Balance E-series

Accessory: Moonlite Focuser


Dates:Feb. 9, 2021March 2, 2021March 3, 2021March 5, 2021March 6, 2021March 16, 2021

Frames:
Astrodon Blue Tru-Balance E-series: 10x240" (40') (gain: 139.00) -10C bin 1x1
Astrodon Green Tru-Balance E-series: 11x240" (44') (gain: 139.00) -10C bin 1x1
Astrodon Red Tru-Balance E-series: 11x240" (44') (gain: 139.00) -10C bin 1x1
Astrodon Ha 3nm: 85x360" (8h 30') (gain: 139.00) -10C bin 1x1
Astrodon Oiii 3nm: 63x360" (6h 18') (gain: 139.00) -10C bin 1x1
ZWO Ha 7nm 1.25'': 8x360" (48') (gain: 139.00) -10C bin 1x1

Integration: 17h 44'

Darks: ~20

Flats: ~20

Flat darks: ~20

Avg. Moon age: 18.63 days

Avg. Moon phase: 46.88%

Bortle Dark-Sky Scale: 2.00


Basic astrometry details

Astrometry.net job: 4441264

RA center: 8h 54' 16"

DEC center: +8° 55' 8"

Pixel scale: 0.652 arcsec/pixel

Orientation: 83.847 degrees

Field radius: 0.500 degrees


Resolution: 4380x3364

Data source: Backyard

Description

An ancient planetary nebula in the constellation of Cancer. It is estimated to be around 2000 light years away and one of the largest planetary nebulas in the sky, however it is not very bright. This is the longest I have ever photographed anything and I think maybe next year I will double that time and see what I get.

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