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Contains:  NGC 2023, Horsehead nebula, IC 434, The star σOri
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The Horsehead Nebula, B33, 





    
        

            Steven Bellavia
The Horsehead Nebula, B33

The Horsehead Nebula, B33

Technical card

Resolution: 2490x2950

Dates:Jan. 11, 2019Jan. 12, 2019

Frames:
Astronomik 6nm OIII: 25x300" (gain: 100.00) -15C bin 1x1
Optolong 7nm Ha 2": 30x300" (gain: 100.00) -15C bin 1x1

Integration: 4.6 hours

Darks: ~24

Avg. Moon age: 5.30 days

Avg. Moon phase: 28.67%

Bortle Dark-Sky Scale: 4.00

Temperature: -3.50

Astrometry.net job: 2467978

RA center: 85.170 degrees

DEC center: -2.457 degrees

Pixel scale: 1.361 arcsec/pixel

Orientation: 88.585 degrees

Field radius: 0.730 degrees

Data source: Traveller

Description

The Horsehead Nebula (Barnard 33) is a dark nebula in the constellation Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. The nebula was first recorded in 1888 by Scottish astronomer Williamina Fleming on a photographic plate taken at the Harvard College Observatory. The Horsehead Nebula is approximately 1500 light years from Earth and 3.5 light years across.

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Author

bellavia
Steven Bellavia
License: None (All rights reserved)
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  • The Horsehead Nebula, B33, 





    
        

            Steven Bellavia
    Original
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    The Horsehead Nebula, B33, 





    
        

            Steven Bellavia
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The Horsehead Nebula, B33, 





    
        

            Steven Bellavia