The top half glows red, while the bottom half is filled with dark dust. Protruding into the red is a dark dust lane that resembles a horse’s head. Please see the explanation for more detailed information.
上半部分发出红光，下半部分则充满暗色尘埃。红色部分中突出的是一条暗色尘埃带，形状类似马头。有关更多详细信息，请参阅说明。
2022年12月29日 Horsehead and Flame Image Credit & Copyright: Jason Close Explanation: The Horsehead Nebula, famous celestial dark marking also known as Barnard 33, is notched against a background glow of emission nebulae in this sharp cosmic skyscape. About five light-years “tall” the Horsehead lies some 1,500 light-years away in the constellation of Orion. Within the region’s fertile molecular cloud complex, the expanse of obscuring dust has a recognizable shape only by chance from our perspective in the Milky Way though. Orion’s easternmost belt star, bright Alnitak, is to the left of center. Energetic ultraviolet light from Alnitak powers the glow of dusty NGC 2024, the Flame Nebula, just below it. Completing a study in cosmic contrasts, bluish reflection nebula NGC 2023 is below the Horsehead…
