2025年1月27日 · M78 is one of the brightest reflection nebulae. Barnard’s Loop (bright orange-red band across the top of the image) is an emission nebula looping around the constellation of Orion to the East. In addition to M78, OMCC encompasses the entirety of the constellation Orion and the Great Nebula (M42) and the Horsehead Nebula (B33), among several ...

The M78 Nebula or NGC2068 is a reflection nebula that can be found in the Orion constellation. This constellation is well known to have huge HII regions with strong emissions. In this image we can see part of the Orion Molecular Cloud Complex: the Barnard’S Loop. Emission, reflection and dark nebulae are present in this wide field.

M78 is a complex of reflection nebulae, dark clouds hiding stellar nurseries and patches of emission, including Herbig-Haros and one of the prominent variable nebulas, McNeil's. So much variable indee...

M78并不难找，可以从猎户腰带上最东侧的恒星，猎户座Zeta，即參宿一（Alnitak）开始寻找；M78位于这颗恒星以北约2度，以东1 1/2度的地方；Zeta星向北伸出的3颗5-6等的一串恒星，也许可以帮你定位。

To find M78, first identify 2nd magnitude Alnitak (Zeta Orionis), the easternmost star in Orion’s Belt, shown in more detail in the star map below. Our target lies about 2.5 degrees northeast of Alnitak, halfway between it and the magnitude 4.76 star 56 Orionis. M78 lies roughly halfway between Alnitak and 56 Orionis. Click for full-screen.

2009年9月15日 · m78的螺距细牙是2.0 ,m78是第三系列了 螺距为6.0的标准粗牙为M64（第一系列）， M68（第二系列） GB/T193-2003普通螺纹 直径与螺距系列

2022年7月4日 · M78为梅西耶天体，M78是位于猎户座的反射星云。 M42和M43形成的大星云区域，M78可以说是其一部分。 距离1600光年，约4光年范围左右。 该星云正在形成年轻的恒星。 M78星云的光之国是绝大部分奥特曼的故乡，例如奥特兄弟，赛文奥特曼都是光之国的成员。 当然，除了M78星云，还有其他地方也盛产奥特曼。 L77星云是雷欧，阿斯特拉兄弟的故乡。 当年L77星云遭到马格马星人的入侵，雷欧的父亲被打败，弟弟阿斯特拉被俘虏，最后被奥特之王 …

Situated approximately 1,350 light-years from Earth, it lies 2.5° northeast of Alnitak, the easternmost star of Orion’s Belt. This captivating nebula was discovered in 1780 by French astronomer Pierre Méchain and later cataloged by Charles Messier as M78. The light from M78 is the reflected starlight of two B-type stars, HD 38563A and HD 38563B.

m78星云也称梅西m78，是位于猎户座的反射星云，属于梅西耶天体，由m42和m43两个巨大的星云组成。 M78星云 可以在地球上直接进行观测，距离地球约有一千六百光年，直径约为四光年。

2024年3月10日 · Messier 78, also known as Casper the Friendly Ghost Nebula, is a reflection nebula in the constellation Orion. It is best viewed in winter. A reflection nebula is a cloud of cosmic dust illuminated by a nearby star or stars. For a mental picture, think of heavy fog floating around a streetlight on a dark night.