The Horsehead and Flame Nebulae

The Horsehead Nebula (also known as Barnard 33 or B33) is a small dark nebula located about 1,375 light-years from Earth in the constellation of Orion.

The Flame Nebula (also known as NGC 2024 or Sh2-277) is an emission nebula in the constellation Orion. It is about 1350 light-years away. At that distance, the Flame Nebula lies within the Orion B cloud of the larger Orion Molecular Cloud Complex.

The bright star Alnitak (ζ Ori), the easternmost star in the Belt of Orion, appears very close to the Flame Nebula in the sky. But the star and nebula are not physically associated with one another. The Flame Nebula contains a young cluster of stars which includes at least one hot, luminous O-type blue supergiant star labeled IRS 2b. The dense gas and dust in the foreground of the nebula heavily obscures the star cluster inside the nebula.

Equipment:
OTA: SVBONY SV503 70ED Refractor f/6
Reducer: SVBONY SV193 0.8x reducer f/4.8
Filter: SVBONY CLS City Light Suppression Filter
Camera: ZWO ASI183MC Pro
Mount: Explore Scientific EX02GT w/ PMC-8
285×60s subs (4:45 hours) stacked with SharpCap 4.1 with darks and flats
Processed with GraXpert, Topaz Denoise, and Siril