2017年11月16日 · Messier 78 or NGC 2068, also known as Casper the Friendly Ghost (not sure how it applies, I don’t see a ghost), is a bright blue reflection nebula in Orion. The nebula can be found between Betelgeuse and closer towards Alnitak.

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.

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’s ghostly appearance has been noted by other astronomers, some of whom have nicknamed it Casper the friendly ghost. Others have likened it to a tropical fish, swimming after the more diminutive NGC 2071.

2024年8月25日 · This colorful image features a small part of M78, a reflection nebula located in the constellation Orion. A reflection nebula is created when light from a star is scattered or reflected off a nearby dust cloud. M78 is located approximately 1,600 light-years away from Earth and has an apparent magnitude of 8.

2024年12月29日 · Often overlooked this time of year with the big focus on objects like the horsehead or orion nebula, just off the side of Orion is the Casper the Friendly Ghost nebula M78. A very bright pair of reflection nebulae with dark secrets hidden behind dust lanes.

2024年2月1日 · M78 is a diffuse reflection nebula and located about 1,600 light years away in the Orion constellation. It carries the colloquial name Casper the Friendly Ghost Nebula. I personally don't see the resemblance, and I find it frustrating that my kids have no idea who Casper even is!

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 - Casper the Friendly Ghost Nebula NGC 2017 - Reflection Nebula This is a very dim area of the sky, so I will need to add a few more hours of exposure. This nebula has pushed me way past my com...

2019年2月26日 · Discovered 1780 by Pierre Méchain, Messier 78 (nickname Casper the friendly Ghost, NGC 2068) is the brightest diffuse reflection nebula in the sky, situated in the rich constellation Orion. This object was discovered by Pierre Méchain in early 1780.