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Contains:  Crescent nebula, NGC 6888
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NGC 6888 - Crescent in bicolor, 


            Lars Stephan
NGC 6888 - Crescent in bicolor

NGC 6888 - Crescent in bicolor

Technical card

Resolution: 1300x920

Dates:Oct. 10, 2018Oct. 11, 2018

TS 1,25" Ha7nm Filter: 99x120"
Baader O3 1.25'' 8.5nm: 87x120"

Integration: 6.2 hours

Avg. Moon age: 1.95 days

Avg. Moon phase: 4.50% job: 2699539

RA center: 303.198 degrees

DEC center: 38.331 degrees

Pixel scale: 3.047 arcsec/pixel

Orientation: 0.635 degrees

Field radius: 0.674 degrees

Data source: Backyard


Das war einer meiner ersten Versuche mit Schmalbandfiltern. Das OIII-Bild wurde zu 100% für Grün und Blau verwendet und H-alpha für Rot.

This was one of my first attempts with narrow band filters. The OIII image was used 100% for green and blue and H-alpha only for red.



Lars Stephan
License: None (All rights reserved)

Sky plot

Sky plot


NGC 6888 - Crescent in bicolor, 


            Lars Stephan