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M15 Core Lucky 10pc
M15 or M-15 may refer to: In science * Messier 15 (M15), a globular cluster in the constellation Pegasus In firearms and military equipment * M15 mine, a United States anti-tank mine * M15 rifle, a variant of the M14, a United States military rifle * Grigorovich M-15, a Russian World War I-era biplane flying boat * M15 pistol, a General Officer's variant of the M1911A1 * M15 Half-track * M15/42 tank, an Italian medium tank In transportation * M-15 (Michigan highway), a highway in the lower peninsula of Michigan, US * M15 motorway (Hungary), a motorway in Hungary * M15 road (East London), a Metropolitan Route in East London, South Africa * M15 (Cape Town), a Metropolitan Route in Cape Town, South Africa * M15 road (Pretoria), a Metropolitan Route in Pretoria, South Africa * M15 road (Durban), a Metropolitan Route in Durban, South Africa * M15 road (Bloemfontein), a Metropolitan Route in Bloemfontein, South Africa * M15 (Port Elizabeth), a Metropolitan Route in Port Elizabeth, South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messier 15
Messier 15 or M15 (also designated NGC 7078 and sometimes known as the Great Pegasus Cluster) is a globular cluster in the constellation Pegasus (constellation), Pegasus. It was discovered by Jean-Dominique Maraldi in 1746 and included in Charles Messier's catalogue of comet-like objects in 1764. At an estimated billion years old, it is one of the oldest known globular clusters. Characteristics M 15 is about 35,700 light-years from Earth, and 175 light-years in diameter. It has an absolute magnitude of −9.2, which translates to a total luminosity of 360,000 times that of the Sun. Messier 15 is one of the most densely packed globulars known in the Milky Way galaxy. Its core has undergone a contraction known as "Core collapse (cluster), core collapse" and it has a central density cusp with an enormous number of stars surrounding what may be a central black hole. Home to over 100,000 stars,the cluster is notable for containing a large number of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |