Contains: NGC 7023
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Iris Nebula and Ghost Nebula

Technical card

Resolution: 8791x6829

Dates: Sept. 19, 2017

Frames:
Astronomik 1.25" CLS-CCD: 12x600" bin 1x1
Astronomik 1.25" Deep-Sky RGB: 18x600"

Integration: 5.0 hours

Darks: ~18

Flats: ~80

Bias: ~500

Avg. Moon age: 28.80 days

Avg. Moon phase: 0.61%

Astrometry.net job: 1807519

RA center: 316.946 degrees

DEC center: 67.809 degrees

Pixel scale: 0.870 arcsec/pixel

Orientation: 7.197 degrees

Field radius: 1.345 degrees

Locations: Mount Hehuan, Nantou, Taiwan

Description

Image was token by Terry Cheung.
Pro-processing by Warren A. Keller.

Comments

Author

Terry Cheung
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Iris Nebula and Ghost Nebula, Terry Cheung

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