Hemisphere:  Northern  ·  Contains:  Crescent Nebula  ·  Crescent nebula  ·  IC 4996  ·  IC4996  ·  NGC 6888  ·  NGC6881  ·  NGC6888  ·  PK074+02.1  ·  PK076+01.2  ·  Sh2-105
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NGC6888  The Crescent Nebula, 



    
        

            Alberto Pisabarro
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Imaging telescopes or lenses: Astro-Physics RH-305

Imaging cameras: SBIG STX-16803

Mounts: Astro Physics AP 1600

Guiding cameras: Lodestar Autoguider

Software: Software Bisque TheSky X  ·  Pisinsight 1.8

Filters: OIII  ·  Ha  ·  Astrodon Red Tru-Balance E-Series Generation 2  ·  Astrodon Blue Tru-Balance E-Series Gen 2  ·  Astrodon Green Tru-Balance E-Series Generation 2


Frames:
AstroDon 5nm OIII filter: 18x1200" -25C bin 1x1
AstroDon 5nm H-Alpha filter: 23x1200" -25C bin 1x1
Astrodon Blue Tru-Balance E-Series Gen 2: 12x300" -25C bin 1x1
Astrodon Green Tru-Balance E-Series Generation 2: 12x300" -25C bin 1x1
Astrodon Red Tru-Balance E-Series Generation 2: 12x300" -25C bin 1x1

Integration: 16.7 hours

Bortle Dark-Sky Scale: 2.00


Astrometry.net job: 4048529

RA center: 20h 12' 58"

DEC center: +38° 19' 9"

Pixel scale: 1.660 arcsec/pixel

Orientation: -1.162 degrees

Field radius: 1.303 degrees


Resolution: 3888x4096

Data source: Amateur hosting facility

Remote source: DeepSkyWest

Description

The crescent nebula is a Wolf-Rayet nebula, formed by the strong stellar wind originated by Wolf-Rayet's star HD 192163.
But in this image we can also see in the lower left a small bubble-shaped nebula, known as the Soap Nebula.

For this image I have used data obtained with the narrow band filters Ha and OIII and RGB for the stars, combining them using the HOO palette.

Comments

Author

silkpericles
Alberto Pisabarro
License: None (All rights reserved)
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NGC6888  The Crescent Nebula, 



    
        

            Alberto Pisabarro