Contains:Bubble nebula, NGC 7635, NGC 7510
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Sh2-157 Lobster Claw Nebula in the Hubble Palette, 




    

        Douglas J Struble
Sh2-157 Lobster Claw Nebula in the Hubble Palette

Sh2-157 Lobster Claw Nebula in the Hubble Palette

Technical card

Resolution: 2493x3119

Dates: Sept. 9, 2018Sept. 17, 2018Sept. 20, 2018

Frames:
Astrodon Ha 5nm: 398x120" (gain: 201.00) -18C bin 1x1
Astrodon OIII 3nm: 386x120" (gain: 201.00) -18C bin 1x1
Astrodon SII 3nm: 285x120" (gain: 201.00) -15C bin 1x1

Integration: 35.6 hours

Darks: ~50

Flats: ~50

Bias: ~250

Avg. Moon age: 15.88 days

Avg. Moon phase: 45.39%

Bortle Dark-Sky Scale: 6.33

Astrometry.net job: 2267497

RA center: 349.212 degrees

DEC center: 60.643 degrees

Pixel scale: 2.315 arcsec/pixel

Orientation: 314.651 degrees

Field radius: 1.284 degrees

Data source: Backyard

Description

Sharpless 157, also known as the Lobster Claw Nebula, is a bright emission nebula in the constellation Cassiopeia. It lies just south of the better-known Bubble Nebula (NGC 7635), pictured as well.

Comments

Author

dugstruble
Douglas J Struble
License: None (All rights reserved)
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Revisions

  • Sh2-157 Lobster Claw Nebula in the Hubble Palette, 




    

        Douglas J Struble
    Original
  • Final
    Sh2-157 Lobster Claw Nebula in the Hubble Palette, 




    

        Douglas J Struble
    B

B

Added a little more contrast and darkened the background a bit more.

Sky plot

Sky plot

Histogram

Sh2-157 Lobster Claw Nebula in the Hubble Palette, 




    

        Douglas J Struble