The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula in the Milky Way situated south of Orion's Belt in the constellation of Orion, [b] and is known as the middle "star" in the "sword" of Orion. It is one of the brightest nebulae and is visible to the naked eye in the night sky with an apparent magnitude of 4.0. It is 1,344 ± …

猎户座大星云（m42，ngc 1976）是一个位于猎户座的弥漫星云，距地球1344 ± 20光年，为最接近我们的一个恒星形成区。它的亮度相当高，在全天仅次于船底座星云，在无光害的地区用肉眼就可观察。

獵戶座大星雲（m42，ngc 1976）是一個位於银河系的弥漫星雲，在天空中坐落在猎户座的猎户腰带位置 [b] ，作为猎户之剑的中心。 猎户座大星云是亮度最高的星云之一，在夜空中裸眼可见，视星等为4.0。 星云距离地球1,344正負20光年（412.1正負6.1秒差距） [4] [5] ，是最接近地球的一個 …

2002年3月6日 · Orion Nebula, NGC 1976, M42 (ground-based image) The Hubble Space Telescope continues to reveal various stunning and intricate treasures that reside within the nearby, intense star-forming region known as the Great Nebula in Orion.

Messier 42 or M42 (also designated NGC 1976) is a nebula in the constellation Orion. It has an apparent visual magnitude of 4 and its angular diameter is 85x60 arc-minutes. ... It is composed of three regions known as NGC 1977, NGC 1975, and NGC 1973. Physically associated with the Great Nebula, it lies at about the same distance.

2020年6月30日 · M42/M43, NGC 1976, Orion Nebula The Orion Nebula (M42/M43, NGC1976/1982) This picture shows the great nebula in the constellation of Orion the Hunter. On a good clear night, from a dark site well away from the lights of modern civilization, this glowing cloud of gas and dust can be seen with the naked eye as a fuzzy patch surrounding the star ...

猎户座大星云（m42，ngc 1976）是位于猎户座的反射星云，也是位于猎户座的 弥漫星云 。 1656年由荷兰天文学家惠更斯发现，直径约16光年， 视星等 4等，距地球1500光年，同位置也在中国星名“伐一”“伐二”“伐三”附近。 猎户座大星云是太空中正在产生新恒星的一个巨大气体尘埃云。

The Orion Nebula Messier 42 (M42, NGC 1976) is the brightest starforming, and the brightest diffuse nebula in the sky, and also one of the brightest deepsky objects at all. Shining with the brightness of a star of 4th magnitude, it visible to the naked eye under moderately good conditions, and rewarding in telescopes of every size, from the ...

NGC 1976 = M42 Bright (emission and/or reflection) nebula in Orion Orion Nebula. Dreyer's description: !!! theta1 Ori and the great neb; = M42. Cross Identifications: GC 1179, h 360.Orion Nebula; Peiresc, Cysatus, Ha 1.5, Huygens, deCh 16, Bode 10, Flamsteed 748; Orion A, …

2009年12月19日 · The Orion Nebula (M-42 and M-43; aka NGC 1976) is one of the brightest emission nebulae (gas cloud shining by its own light) to be found in the sky. It can be seen with the un-aided eye as a fuzzy star in the sword region of Orion, and even small binoculars reveals its nebulous nature. M-42 is in fact a blister on the surface of a much larger ...