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Contains:  NGC 2024, NGC 2023, Horsehead nebula, IC 434, IC 432, NGC 1990, M 43, NGC 1982, NGC 1977, NGC 1980, M 42, Great Nebula in Orion, NGC 1976, NGC 1975, NGC 1981, IC 423, The star Alnitak (ζOri), The star σOri, The star Alnilam (εOri), The star 45Ori, The star ιOri, The star θ2Ori, The star θ1Ori, The star 42Ori, The star Mintaka (δOri), Part of the constellation Orion (Ori)
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Flame, Horse Head and Orion nebulae in Ha - 4 panel mosaic

Technical card

Resolution: 4400x3000

Dates:Oct. 14, 2017Oct. 15, 2017Oct. 16, 2017Oct. 19, 2017Oct. 20, 2017Oct. 30, 2017Nov. 22, 2017Nov. 23, 2017Nov. 24, 2017

Frames:
Optolong Ha 7nm: 153x300" (gain: 139.00) -15C bin 1x1
Optolong Ha 7nm: 24x10" (gain: 139.00) -25C bin 1x1
Optolong Ha 7nm: 120x300" (gain: 139.00) -25C bin 1x1

Integration: 22.8 hours

Avg. Moon age: 14.33 days

Avg. Moon phase: 22.08%

Astrometry.net job: 1887115

RA center: 84.822 degrees

DEC center: -3.395 degrees

Pixel scale: 5.334 arcsec/pixel

Orientation: 90.671 degrees

Field radius: 3.946 degrees

Data source: Backyard

Description

Hydrogen layer

Comments

Author

alexbb
alexbb
License: None (All rights reserved)
4716
Like

Revisions

B

Ha stretched more

C

2 more panels below

D

added 4 more panels to fill the same area and double the signal

F

slightly smaller stars

Sky plot

Sky plot

Histogram

Flame, Horse Head and Orion nebulae in Ha - 4 panel mosaic, 





    
        

            alexbb