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Contains:  NGC 6995, Network nebula, NGC 6992, IC 1340, Veil nebula, Lace-work nebula, Filamentary nebula, NGC 6960, The star 52Cyg
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Cygnus loop (Ha), 





    
        

            Christopher Teppan
Cygnus loop (Ha)

Cygnus loop (Ha)

Technical card

Resolution: 4100x2727

Dates:Sept. 3, 2019

Frames:Optolong H-Alpha 6.5nm 36mm: 80x300" (gain: 76.00) -28C bin 1x1

Integration: 6.7 hours

Darks: ~96

Flats: ~80

Bias: ~277

Avg. Moon age: 4.65 days

Avg. Moon phase: 22.57%

Temperature: 17.00

Astrometry.net job: 2900312

RA center: 20h 51' 33"

DEC center: +30° 51' 7"

Pixel scale: 4.024 arcsec/pixel

Orientation: 91.656 degrees

Field radius: 2.752

Data source: Traveller

Description

This is the first part of the bicolor version. The O3 data is coming soon. Due to the high ambient temperature the ASI1600 can´'t reach the desired -30°C even with 100% coolingpower. Two degree difference from the darkframes is obviously not a big problem and i lived with it;). This Ha version is nearly unprocessed; only some background denoising and some curve adjustments are made.

Comments

Author

ChristopherT
Christopher Teppan
License: None (All rights reserved)
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Cygnus loop (Ha), 





    
        

            Christopher Teppan