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Contains:  M 31, Great Nebula in Andromeda, NGC 224, M 32, NGC 221, M 110, NGC 205, The star νAnd
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Halpha in M31, 


            David Johnson
Halpha in M31

Halpha in M31

Technical card

Resolution: 4090x2645

Dates:Sept. 7, 2019

Astrodon E Series - Blue: 373x30" (gain: 76.00) -15C
Astrodon E Series - Green: 384x30" (gain: 76.00) -15C
Astrodon E Series - Red: 365x30" (gain: 76.00) -15C
Astrodon H-alpha 3 nm: 312x120" (gain: 76.00) -15C

Integration: 19.8 hours

Darks: ~50

Flats: ~50

Flat darks: ~50

Bias: ~50

Avg. Moon age: 8.70 days

Avg. Moon phase: 63.79% job: 2907454

RA center: 10.701 degrees

DEC center: 41.260 degrees

Pixel scale: 2.324 arcsec/pixel

Orientation: 29.876 degrees

Field radius: 1.572 degrees

Locations: Backyard, Warren County, Ohio, United States

Data source: Backyard


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David Johnson
License: None (All rights reserved)

Sky plot

Sky plot


Halpha in M31, 


            David Johnson