Messier 50 or M 50, also known as NGC 2323 or the Heart-shaped Cluster, is an open cluster of stars in the constellation Monoceros. It was recorded by G. D. Cassini before 1711 and independently discovered by Charles Messier in 1772[b] while observing Biela's Comet. It is sometimes described as a 'heart-shaped' figure or a blunt arrowhead.[3]
M50 is about 2,900 light-years away from Earth[2] and is near to but narrowly not estimated to be gravitationally tied to the Canis Major (CMa) OB1 association.[4] It has a core radius of 5.9 ly (1.8 pc)[6] and spans 17.8 ly (5.46 pc).[4] The cluster has 508 confirmed and 109 probable members – their combined mass is more than 285 M☉, the mean stellar density would thus be 1.3 stars per cubic parsec.[4] It is around 140 million years old,[1] with two high-mass white dwarfs[7] and two chemically peculiar stars.[8]
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The Messier objects are a set of 110 astronomical objects catalogued by the French astronomer Charles Messier in his Catalogue des Nébuleuses et des Amas...
children to take up the sport." Messier was born in St. Albert, Alberta, the son of Mary-Jean (Dea) and Doug Messier. He was the second son and third...
constellation Coma Berenices. It was discovered by Charles Messier in 1781. M88 is one of the fifteen Messier objects that belong to the nearby Virgo Cluster of...
discovered on May 3, 1764, and was the first Messier object to be discovered by Charles Messier himself. Messier originally mistook the object for a nebula...
Messier 14 (also known as M14 or NGC 6402) is a globular cluster of stars in the constellation Ophiuchus. It was discovered by Charles Messier in 1764...
Wikimedia Commons has media related to Messier 87. Messier 87, SEDS Messier pages ESA/Hubble images of M87 Messier 87 on WikiSky: DSS2, SDSS, GALEX, IRAS...
This galaxy was discovered by astronomer Charles Messier in 1777. As an elliptical galaxy, Messier 49 has the physical form of a radio galaxy, but it...
at the Cape of Good Hope. Charles Messier added it to his catalogue of nebulous objects (now known as the Messier Catalogue) in March 1781. It is one...
magnitude is only +15.75. List of planetary nebulae Messier object New General Catalogue List of Messier objects NGC 6565, which is undergoing a similar process...
Messier 84 or M84, also known as NGC 4374, is a giant elliptical or lenticular galaxy in the constellation Virgo. Charles Messier discovered the object...
establishment of a 50/50 joint venture in 1995 between France's Messier and the United Kingdom's Dowty Group, then owned by TI Group. Messier-Dowty was purchased...
elliptical galaxy Messier 60 were both discovered by Johann Gottfried Koehler in April 1779 when observing comet seeming close by. Charles Messier listed both...
from the James Webb Space Telescope Messier 66 by 2MASS An ultraviolet image of Messier 66 by GALEX List of Messier objects Skrutskie, Michael F.; Cutri...
Alphard. This grouping was discovered by Charles Messier in 1771, but there is no cluster precisely where Messier indicated; he made an error, as he did with...
Monoceros contains many clusters and nebulae; most notable among them are: Messier50, an open cluster The Rosette Nebula (NGC 2237, 2238, 2239, and 2246) is...
Phecda (γ UMa, Gamma Ursa Majoris). Messier 109 was discovered by Pierre Méchain in 1781. Two years later Charles Messier catalogued the object, as an appended...
related to Messier 68 at Wikimedia Commons Globular Cluster M68 @ SEDS Messier pages Messier 68, Galactic Globular Clusters Database page Messier 68 on WikiSky:...
suggestion to assign the galaxy a Messier number was made by Kenneth Glyn Jones in 1967, making it the last member of the Messier List. This galaxy has a morphological...
to Messier 82. M82, SEDS Messier pages M82 at Chandra SST: Galaxy on Fire! M82 at NASA/IPAC EXTRAGALACTIC DATABASE ESA/Hubble images of M82 Messier 82...
to 25 million years in age. After the discovery of Messier 101 through 103 by Pierre Méchain, Messier later added this open cluster to his own catalogue...
Specifically -by-east Wikimedia Commons has media related to Messier 29. Messier 29 RGB Image Messier 29 LRGB image – 2 hrs total exposure Lawrence, Pete. "M29...
Together with NGC 4647, it forms a pair known as Arp 116. Messier 60 and nearby elliptical galaxy Messier 59 were discovered by Johann Gottfried Koehler in April...
March 1781. The discovery was then reported to Charles Messier, who included the object in the Messier Catalogue of comet-like objects. It was one of the...
Messier 19 or M19 (also designated NGC 6273) is a globular cluster in the constellation Ophiuchus. It was discovered by Charles Messier on June 5, 1764...
Africa 50 Moganshan Road (M50), Shanghai's contemporary art district Messier50 (M50), an open star cluster in the constellation Monoceros M 50, an age...
doi:10.1088/0004-6256/139/2/476, hdl:2152/34371, S2CID 120965440. "Messier 5". SEDS Messier Catalog. Archived from the original on 27 June 2023. Retrieved...
Messier 89 (M89 for short, also known as NGC 4552) is an elliptical galaxy in the constellation Virgo. It was discovered by Charles Messier on March 18...
communicated his discovery to Charles Messier, who subsequently listed the object in his catalog. Both Messier and William Herschel described this galaxy...