The Horsehead Nebula

 Barnard 33, also known as the Horsehead Nebula, is a dark nebula in Orion’s constellation. The dark nebula, which forms the horsehead’s shape, is illuminated by the bright emission nebula IC 434.

The Horsehead was first discovered in 1888 by Scottish astronomer Williamina Fleming. It is one of their most recognizable objects and is 1,374 light-years away from us.

The horse head’s dark area is caused by thick dust blocking the stars’ light behind it. There are other interesting targets near the Horse Head like NGC 2024 (The Flame Nebula) and a blue reflection nebula NGC 2023. The Flame Nebula is below Alnitak, which is the first star on Orion’s Belt. At a magnitude of 1.77, it is the brightest star in this image.

The constellation of Orion has several large stellar nurseries. The Horsehead and Flame Nebula are part of the Orion Molecular Cloud Complex, a star-forming region.

The Flame Nebula has a cluster of several hundred newborn stars at its center. The Flame Nebula is a magnitude 10 and about 1350 light-years away.

This was a HAGB capture 12 x 5 mins Ha and 20 x 3 minutes GB. Processed in Pixinsight.

Horsehead Nebula

Stargazing Live from my own back garden this evening. My telescope & camera pointing towards the heavens to image the amazing Horsehead Nebula.

The red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. The darkness of the Horsehead is caused mostly by thick dust, although the lower part of the Horsehead's neck casts a shadow to the left. Streams of gas leaving the nebula are funneled by a strong magnetic field. Bright spots in the Horsehead Nebula's base are young stars just in the process of forming.

1 hour only of exposure Approx 40 mins @ Iso 3200 and 20 Mins @Iso 1600 using 2 minute guided sub frames. My collection of darks are proving useful with a dark frame subtraction. DDP and levels adjustment and aquisition provided from images plus and Deep sky stacker combining the frames.