M50 (NGC 2323) is an open cluster in the constellation Monoceros, and at magnitude 5.9, is barely visible to the naked eye in dark skies.
Author Archives: Mark Bailey
Comet C/2022 E3 (ZTF)
Messier 41
M41 (NGC 2287) is an open cluster south of the brightest star Sirius in the constellation Canis Major and, at magnitude 4.5, is visible to the naked eye.
Messier 35
M35 (NGC 2168) is an open cluster in the constellation Gemini. At magnitude 5.3 it is visible to the naked eye in dark skies at the feet of Gemini (see chart below). In the lower right, which is southwest in this image, you can see NGC 2158 which is 10 times older and five times more remote than M35 and at magnitude 8.6 is not visible to the naked eye even in Torrey.
Messier 79
M79 (NGC 1904) is a globular cluster in the constellation Lepus. It is still low in the east early in the evening in January and at magnitude 7.7 is not visible to the naked eye.
Messier 42, 43 & 78
M42 (NGC 1976) is a star forming nebula, an emission and reflection nebula in Orion.
M43 (NGC 1982) is also a star forming nebula and emission and reflection nebula with an open star cluster, also in Orion.
M78 (NGC 2068) is the great star forming nebula, a reflection nebula, with an open star cluster, in Orion.
Messier 38
M38 (NGC 1912) is an open cluster in the constellation Auriga.
Messier 37
M37 (NGC 2099) is an open cluster in the constellation Auriga.
Messier 36
M36 (NGC 1960) is an open cluster in the constellation Auriga.
Messier 45
M45 is a famous open cluster in Taurus commonly known as Pleiades: