Messier 2
Globular cluster
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Summary
Messier 2 is a globular cluster[1]. It draws 732 Wikipedia views per month (globular cluster category, ranking #7 of 58).[2]
Key Facts
- Discoverer or inventor: Giovanni Domenico Maraldi[3]
- Constellation: Aquarius[4]
- Spectral class: II[5]
- Part of: Milky Way[6]
- Commons category: Messier 2[7]
- Catalog code: M2[8], NGC 7089[9], BD-01 4175[10], HD 205146[11], GCRV 13546[12], GCl 121[13], Melotte 235[14], C 2130-010[15], [KPS2012] MWSC 3526[16]
- Time of discovery or invention: September 11, 1746[17]
- Topic's main category: Category:Messier 2[18]
- Commons gallery: Messier 2[19]
- Apparent magnitude: 6.25[20], 4.70[21], 7.297[22], 6.836[23], 6.567[24], 6.384[25]
- Absolute magnitude: -8.97[26]
- Different from: M2[27]
- Radius: 88[28]
- Radial velocity: -5.3[29], -3.0[30], -6.7[31]
- Metallicity: -1.62[32], -1.66[33]
- Distance from Earth: 37,200[34], 0.012[35]
- Right ascension: 323.362583[36]
- Declination: -0.823250[37]
- Declination component of proper motion: -4.950[38], -4.54[39]
- Right ascension component of proper motion: 5.900[40], 6.77[41]
Why It Matters
Messier 2 has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[42] It is known by 13 alternative names across languages and contexts.[43]