Contains: IC 435, NGC 2024, NGC 2023, Horsehead nebula, IC 434, IC 432, IC 431, The star Alnitak (ζOri), The star σOri
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The Horsehead Nebula, Barnard 33 in HaRGB

Technical card

Resolution: 3296x2488 job: 881775

RA center: 85.110 degrees

DEC center: -2.168 degrees

Pixel scale: 2.288 arcsec/pixel

Orientation: -179.983 degrees

Field radius: 1.312 degrees


This is a HaRGB version of the Horsehead Nebula using 9x5m of R,G, and B, and 11x30m of Ha. Total integration time is 7.75 hours. This data was originally taken back on January 15th, 2015 and has been completely reprocessed from the stacked channel data.

Version B primarily addresses two problems in version A: the color of the Flame Nebula, and the blowing out of the detail in IC 434 near the Horsehead.




Sky plot

Sky plot


The Horsehead Nebula, Barnard 33 in HaRGB, Madratter