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Contains:  Crescent nebula, NGC 6888
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NGC 6888 - the O III shell, 





    
        

            pete_xl
NGC 6888 - the O III shell

NGC 6888 - the O III shell

Technical card

Resolution: 4227x2878

Frames:
100x15" (gain: 125.00)
Baader Ha 36mm 7nm: 38x300" (gain: 139.00)
Baader O III 36mm 8nm: 58x300" (gain: 139.00)

Integration: 8.4 hours

Astrometry.net job: 2737734

RA center: 303.044 degrees

DEC center: 38.366 degrees

Pixel scale: 0.863 arcsec/pixel

Orientation: 224.372 degrees

Field radius: 0.613 degrees

Locations: Balkon, Ascheberg, NRW, Germany

Data source: Backyard

Description

The image shows the shell of ionized light emitting OIII gas in the object NGC6888 (Crescent Nebula).

NGC 6888 is an accumulation of ionized gas in the constellation Cygnus that is driven away by the stellar wind of a hot Wolf-Rayet type star (WR136). The ionized gas emits red light in the hydrogen alpha wavelength. The central hydrogen alpha gas compex is wrapped by a wavefront of gas that contains oxygen molecules which emit green-blue light.

The image was composed from from picture taken with two cameras

ASI1600mmp:
Ha 38 x 300s @ gain 139
OIII 58 x 300s @ gain 139

ASI294mcp:
100 x 15s @ gain 125 (for the stars)

Telescope: 130/910 mm TS Photoline APO Triplet

PP: Channel combination in APP and PSCC2019

Comments

Author

pete_xl
pete_xl
License: None (All rights reserved)
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NGC 6888 - the O III shell, 





    
        

            pete_xl