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Contains:  Horsehead nebula, IC 434, IC 435, NGC 2023, NGC 2024, The star Alnitak (ζOri), The star σOri
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Horsehead and Flame Nebula in Ha experiment, 


            Steven Christensen
Horsehead and Flame Nebula in Ha experiment
Powered byPixInsight

Technical card

Resolution: 2199x2749

Dates:Nov. 11, 2018

Frames: 24x300"

Integration: 2.0 hours

Darks: 0

Flats: 0

Flat darks: 0

Bias: 0

Avg. Moon age: 3.70 days

Avg. Moon phase: 14.71%

Bortle Dark-Sky Scale: None

Mean SQM: None

Mean FWHM: None

Temperature: None

Basic astrometry details job: 2363501

RA center: 5h 40' 59"

DEC center: -2° 30' 14"

Pixel scale: 2.515 arcsec/pixel

Orientation: 98.862 degrees

Field radius: 1.229 degrees

Data source: Backyard


Atik 460ex camera with 5nm Astrodon Ha filter. Canon 200mm L lens at f/2.8 with a Canon 2x extender = 400mm. Orion Atlas Pro mount with Orion 50mm guide scope and Lodestar X2 guide camera. 24 x 5 min exposures = 2 hours. Processed in Pixinsight and Photoshop CC. Flats and bias frames used. Shot from my front yard in Durham, NC. A work in progress. An experiment to see if adding a 2x extender makes sense to use. Probably not the best combination. Focus difficult and stars obviously off. Thinking about it.



Steven Christensen
License: None (All rights reserved)

Sky plot

Sky plot


Horsehead and Flame Nebula in Ha experiment, 


            Steven Christensen