Trifid Nebula
HII region
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Summary
Trifid Nebula is a H II region[1]. It ranks in the top 5% of h ii region entities by monthly Wikipedia readership (1,288 views/month).[2]
Key Facts
- Discoverer or inventor: Charles Messier[3]
- Constellation: Sagittarius[4]
- Part of: Milky Way[5]
- Commons category: Trifid Nebula[6]
- Catalog code: M 20[7], NGC 6514[8], Barnard 85[9], CSI-23-17593 1[10], LBN 006.99-00.17[11], LBN 27[12], OCl 23.0[13], Collinder 360[14], C 1759-230[15], CTB 45[16], LMH 12[17], MSH 17-2-16[18], OCISM 2[19], [DGW65] 99[20]
- Time of discovery or invention: June 5, 1764[21]
- Apparent magnitude: 6.3[22]
- Different from: Lagoon Nebula[23]
- Radial velocity: -5.0 kilometre per second[24]
- Distance from Earth: 5200 light-year[25], 816 parsec[26]
- Right ascension: 270.6750 degree[27]
- Declination: -22.9717 degree[28]
- Epoch: J2000.0[29]
- Declination component of proper motion: -0.70 milliarcsecond per year[30]
- Right ascension component of proper motion: -0.77 milliarcsecond per year[31]
Why It Matters
Trifid Nebula has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.[32] It is known by 31 alternative names across languages and contexts.[33]