Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  48 sig Ori  ·  50 zet Ori  ·  Alnitak  ·  B33  ·  Flame Nebula  ·  Horsehead nebula  ·  IC 431  ·  IC 432  ·  IC 434  ·  IC 435  ·  LBN 924  ·  LBN 944  ·  LBN 946  ·  LBN 950  ·  LBN 953  ·  LBN 954  ·  LBN 958  ·  LBN 962  ·  LBN 965  ·  LDN 1635  ·  LDN 1636  ·  NGC 2023  ·  NGC 2024  ·  Orion  ·  Orion B  ·  Sh2-277  ·  The star Alnitak (ζOri)  ·  The star σOri  ·  VdB51
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IC434 - Barnard 33 - Ha, Red, and Blue, Edward Overstreet
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IC434 - Barnard 33 - Ha, Red, and Blue

Link to TIFF/FITS: http://www.nghtskyimager.com
Getting plate-solving status, please wait...
IC434 - Barnard 33 - Ha, Red, and Blue, Edward Overstreet
Powered byPixInsight

IC434 - Barnard 33 - Ha, Red, and Blue

Link to TIFF/FITS: http://www.nghtskyimager.com

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Description

Horsehead Nebula in the Constellation Orion.  The Horsehead is a dark nebula silhouetted against the glow of the emission nebula IC 434. 
Although my image is so widefield it is hard to see but the underside of the "neck" of the Horsehead is especially dark, and actually casts a shadow on the field below the "muzzle". The entire region is illuminated by the bright OB star Sigma Orionis, which is also responsible for ionizing the emission nebula IC 434. The much brighter Zeta Orionis is a foreground star, not related to the nebulosity.

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IC434 - Barnard 33 - Ha, Red, and Blue, Edward Overstreet