The Flame Nebula, designated as NGC 2024 and Sh2-277, is an emission nebula in the constellation Orion. It is about 900 to 1,500 light-years away. The bright star Alnitak (ΞΆ Ori), the easternmost star in the Belt of Orion, shines energetic ultraviolet light into the Flame and this knocks electrons away from the great clouds of hydrogen gas that reside there. Much of the glow results when the electrons and ionized hydrogen recombine. Additional dark gas and dust lies in front of the bright part of the nebula and this is what causes the dark network that appears in the center of the glowing gas. The Flame Nebula is part of the Orion Molecular Cloud Complex, a star-forming region that includes the famous Horsehead Nebula. At the center of the Flame Nebula is a cluster of newly formed stars, 86% of which have circumstellar disks. X-ray observations by the Chandra X-ray Observatory show several hundred young stars, out of an estimated population of 800 stars. X-ray and infrared images indicate that the youngest stars are concentrated near the center of the cluster.
The Horsehead Nebula, B33, is the dark nebula in front of the bright red emission nebula IC 434. Along with the Orion Nebula, these nebulae near the Horsehead are part of a very large complex that is a stellar nursery where stars are forming out of the dust and gas.
The image was shot during the week at the Okie-Tex Star Party near Kenton, OK in October 2021. The image is made from100 minutes of subframes taken with a StarLight Express SVXR-M25C through an AT72ED. The scope camera assembly was mounted on a AP900. Autoguiding was accomplished using an ASI20 camera and a 60mm refractor using PHD2 guiding software. Images were captured and processed in AstroArt 7 and Topaz Denoise software.
