Messier 43 or M43, also known as De Mairan's Nebula and NGC 1982, is a star-forming nebula with a prominent H II region in the equatorial constellation of Orion. It was discovered by the …

2025年1月15日 · Messier 43 is a neighbor to Messier 42, the Orion Nebula. Separated from the Orion Nebula (M42) by only a dark lane of dust, M43 was recognized as a distinct nebula by …

2015年5月15日 · Messier 43 (M43), also known as De Mairan’s Nebula, is a star-forming region located in the constellation Orion. M43 has an apparent magnitude of 9.0 and lies at a …

2020年7月7日 · 这幅由哈伯太空望远镜拍摄的主题深空影像，以代表色呈现其中心名为M43的区域。 位在著名猎户座的腰带三星附近之猎户大星云，是肉眼轻易可辨的天体。 而包括M42 …

M42 and M43 are themselves part of a giant molecular cloud that spans much of Orion (and includes the reflection nebula M78). The Orion Nebula owes its appearance to ionizing …

Messier 43 (NGC 1982), also known as the De Mairan's Nebula, is a diffuse nebula located in the constellation Orion, in the Orion Arm of the Milky Way Galaxy in the Local Group of galaxies. …

M43 is a HII region located in the constellation of Orion that was discovered by Jean-Jacques Dortous de Mairan sometime before 1731. As part of the famous Orion Nebula (M42), it's …

2021年10月8日 · m43本身是个恒星形成区，它虽然到处都是黝黑、形如错综复杂系带的丝缕状尘埃，但主成分其实是正在散发辉光的氢气。 这片猎户座星野，距离我们约1,600光年远。

Messier 43 or M43 (also designated NGC 1982) is a nebula in the constellation Orion. It has an apparent visual magnitude of 9 and its angular diameter is 20x15 arc-minutes. M43 lies at an …

2023年8月11日 · Separated from the Orion Nebula (M42) by only a dark lane of dust, M43 was recognized as a distinct nebula by the French astronomer Jean-Jacques d’Ortous de Mairan in …