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Contains:  NGC 2023, Horsehead nebula, IC 434
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Horsehead Nebula - Ha, 


            Thomas Richter
Horsehead Nebula - Ha

Horsehead Nebula - Ha

Technical card

Resolution: 5455x3631

Dates:Feb. 16, 2019Feb. 18, 2019

Frames:Baader Ha 1.25" 7nm: 47x420" (gain: 200.00) -20C bin 1x1

Integration: 5.5 hours

Darks: ~37

Flats: ~37

Avg. Moon age: 12.27 days

Avg. Moon phase: 91.86% job: 2534845

RA center: 5h 41' 1"

DEC center: -2° 28' 40"

Pixel scale: 0.494 arcsec/pixel

Orientation: 86.371 degrees

Field radius: 0.449

Locations: Nürnberg, Nürnberg, Bayern, Germany

Data source: Backyard


This picture was taken at almost full moon. The telescope was placed in the front garden on the street side. Nevertheless, the result is not so bad ;-).

Object description (

The Horsehead Nebula (also known as 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. It is one of the most identifiable nebulae because of its resemblance to a horse's head.



Thomas Richter
License: None (All rights reserved)

Sky plot

Sky plot


Horsehead Nebula - Ha, 


            Thomas Richter