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Contains:  IC 523
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Planetary Nebula Sh2-290

Technical card

Dates:Jan. 26, 2018Jan. 27, 2018Feb. 8, 2018

Astrodon RGB: 48x300" -25C bin 1x1
BAADER H Alpha 7nm: 30x1200" -25C bin 1x1
Astrodon O-iii: 26x1200" -25C bin 1x1

Integration: 22.7 hours

Avg. Moon age: 14.02 days

Avg. Moon phase: 62.31%

Basic astrometry details job: 3230882

RA center: 8h 54' 1"

DEC center: +8° 55' 33"

Pixel scale: 1.661 arcsec/pixel

Orientation: 181.317 degrees

Field radius: 0.656 degrees

Resolution: 2168x1844

Locations: Deep Sky West, Rowe, New Mexico, United States

Data source: Amateur hosting facility

Remote source: DeepSkyWest


Sh2-290 is a faint planetary nebula in Gemini, also known as Abell 31 and PK 219 +31. It’s diameter is around 23 light years. The structures visible in this image are dominated by emissions from hydrogen (red) and oxygen (blue).

This is an HO composition with RGB stars.



Miles Zhou
License: None (All rights reserved)

Sky plot

Sky plot


Planetary Nebula Sh2-290, 


            Miles Zhou

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