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Contains:  Crescent nebula, NGC 6888
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NGC 6888 #2, 





    
        

            pete_xl
NGC 6888 #2

NGC 6888 #2

Technical card

Resolution: 4645x3320

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: 2737743

RA center: 303.123 degrees

DEC center: 38.374 degrees

Pixel scale: 0.863 arcsec/pixel

Orientation: 224.313 degrees

Field radius: 0.684 degrees

Locations: Balkon, Ascheberg, NRW, Germany

Data source: Backyard

Description

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: Channele combination in APP and PSCC2019

Comments

Author

pete_xl
pete_xl
License: None (All rights reserved)
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NGC 6888 #2, 





    
        

            pete_xl