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Contains:  NGC 7510
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Sh2-157 Lobster Claw Nebula in SHO

Technical card

Resolution: 3328x4163

Dates:Oct. 9, 2019Oct. 14, 2019Oct. 19, 2019

Frames:
Astrodon OIII 3nm: 333x120" (gain: 200.00) -20C bin 1x1
Astronomik Ha 6nm 1.25'': 335x120" (gain: 200.00) -20C bin 1x1
Astronomik SII 1.25" 6nm: 349x120" (gain: 200.00) -20C bin 1x1

Integration: 33.9 hours

Darks: ~50

Flats: ~50

Bias: ~250

Avg. Moon age: 15.41 days

Avg. Moon phase: 84.79%

Bortle Dark-Sky Scale: 7.00

Astrometry.net job: 3251620

RA center: 23h 14' 20"

DEC center: +60° 15' 7"

Pixel scale: 1.087 arcsec/pixel

Orientation: 348.077 degrees

Field radius: 0.804

Locations: Backyard White Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard

Description

Sh2-157, also known as the Lobster Claw Nebula, is an emission nebula located in the constellation Cassiopeia approximately 8,000 light-years distant. It is only a short distance from the famous Bubble Nebula. The small open cluster of stars located in the upper right of the image is designated NGC 7510 and lies approximately 11,400 light-years away. The small bright nebular object just below the "blue left pincher" is designated Sharpless 157a. It is a nebula surrounding the Wolf Raynet star WR-157.

Comments

Author

dugstruble
Douglas J Struble
License: None (All rights reserved)
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Sh2-157 Lobster Claw Nebula in SHO, 





    
        

            Douglas J Struble