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Contains:  Crescent nebula, NGC 6888
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NGC 6888 - Crescent Nebula in HOO, 



    
        

            Michael J. Mangieri
NGC 6888 - Crescent Nebula in HOO
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NGC 6888 - Crescent Nebula in HOO

Technical card


Dates:Sept. 18, 2019Oct. 1, 2019

Frames:
Astrodon Ha 5nm 31 mm: 67x180" (gain: 200.00) -20C bin 1x1
Astrodon Oiii 3nm 31 mm: 60x180" (gain: 200.00) -20C bin 1x1
ZWO Blue 31mm: 40x30" (gain: 139.00) -20C bin 1x1
ZWO Green 31mm: 40x30" (gain: 139.00) -20C bin 1x1
ZWO Red 31mm: 40x30" (gain: 139.00) -20C bin 1x1

Integration: 7.3 hours

Darks: ~40

Flats: ~25

Bias: ~100

Avg. Moon age: 10.89 days

Avg. Moon phase: 47.13%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 3017917

RA center: 20h 12' 10"

DEC center: +38° 19' 44"

Pixel scale: 1.346 arcsec/pixel

Orientation: 47.044 degrees

Field radius: 1.026 degrees


Resolution: 4447x3223

Locations: Mikey's Place, Reisterstown, Maryland, United States

Data source: Backyard

Description

I had first decided to include Sii data, but it wasn't worth the effort. This is HOO processed to eliminate (or vastly reduce) the stars and then RGB stars added in.

Taken over a number of nights, 9/15-10/1.

Comments

Author

XCalRocketMan
Michael J. Mangieri
License: None (All rights reserved)
790
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NGC 6888 - Crescent Nebula in HOO, 



    
        

            Michael J. Mangieri