Messier 78 or M78, also known as NGC 2068, is a reflection nebula in the constellation Orion. It was discovered by Pierre Méchain in 1780 and included by Charles Messier in his catalog of comet -like objects that same year.

m78或梅西耶78，也稱為ngc 2068，是在獵戶座的一個反射星雲。它於1780年被皮埃爾·梅尚發現，並在同年被收錄至夏爾·梅西耶的類似彗星天體目錄 [3] 。 m78是在包括ngc 2064、ngc 2067、和ngc 2071這一組星雲中最明亮的瀰漫反射星雲。

2015年8月1日 · Messier 78 (M78) is a reflection nebula located in the northern constellation Orion, the Hunter. M78 is the brightest diffuse reflection nebula in the sky. It has an apparent magnitude of 8.3 and lies at an approximate distance of 1,600 light years from Earth. It has the designation NGC 2068 in the New General Catalogue.

Messier 78 (M78, NGC 2068) is a beautiful blue reflection nebula in the constellation Orion. It is the brightest diffuse reflection nebula in a group of nebulae that includes NGC 2064, NGC 2067, and NGC 2071.

现实中编号 M78 的星云，NGC 2068，是距离地球约 1350 光年的反射星云，里面有数十颗恒星。 在随便来个“扔到”而不特意指定位置的情况下，无防护地暴露在太空的人可以生存约 90 秒，最初 9~11 秒里可以保持清醒，在 30 秒内获救基本不会受到永久伤害。 M78 星云的星云物质是很稀疏的，无法期待星云物质对维持这个人的生命有什么好的作用。 如果在 M78 星云里找得到一颗适合人类生活（或至少短暂生存）的行星，这个人的存活时间可以按照那行星的环境条件有所延长 …

2019年2月18日 · Located in the Orion Constellation, roughly 13,500 light years from Earth, is the bright reflection nebula known as Messier 78.

Messier 78, also known as M78 or NGC 2068, is a prominent reflection nebula located in the constellation Orion. Discovered by Pierre M?chain in 1780, and later catalogued by Charles Messier, this fascinating object is part of the larger Orion Molecular Cloud Complex, an expansive region of cosmic dust and gas that also includes the famous Orion ...

Messier 78, NGC 2068, is a reflection nebula in the constellation Orion. It was discovered by Pierre Méchain in 1780 and included by Charles Messier in his catalog of comet-like objects that same year...

2023年12月10日 · M78 (Messier 78, NGC 2068) is a reflection nebula discovered by Pierre Mechain in early 1780 [1]. Charles Messier added it to his catalog on December 17, 1780 [1]. This impressive celestial object resides in the Orion molecular cloud complex [1,2], a large cloud of gas and dust surrounding the Orion Nebula.

Messier 78 or M78 (also designated NGC 2068) is a diffuse nebula in the constellation Orion. It has an apparent visual magnitude of 8.3 and its angular diameter is 8x6 arc-minutes. M78 lies at an estimated distance of 1600 light years. The Equinox 2000 coordinates are RA= 5h 46.7m, Dec= +00° 03´ which makes M78 best seen during the winter.