Nebula Trifid

nebula emisi di rasi bintang Sagitarius

Nebula Trifid (dalam katalog sebagai Messier 20 atau M20 dan sebagai NGC 6514) adalah sebuah wilayah H II berlokasi di Sagittarius. Namanya berarti 'divided into three lobes'. The object is an unusual combination of an open cluster of stars, an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (the apparent 'gaps' within the emission nebula that cause the trifid appearance; these are also designated Barnard 85). Viewed through a small telescope, the Trifid Nebula is a bright and colorful object, and is thus a perennial favorite of amateur astronomers.[3]

  1. ^ a b c d "SIMBAD Astronomical Database". Results for NGC 6514. Diakses tanggal 2006-11-16. 
  2. ^ "Star formation in the Trifid Nebula" (PDF). Astronomy&Astrophysics 489, 157–171 (2008). Diakses tanggal 2011-10-09. 
  3. ^ "Science Daily". Science Daily article on Trifid Nebula. Diakses tanggal 2010-07-06. 
Trifid Nebula
Nebula
Trifid Nebula by the Hubble Space Telescope (NASA/ESA)
Data pengamatan: J2000 epos
Asensio rekta 18j 02m 23d[1]
Deklinasi -23° 01′ 48″[1]
Jarak5200 ly[2] ly
Magnitudo semu (V)+6.3[1]
Dimensi semu (V)28 arcmins
Rasi bintangSagittarius
SebutanM20, NGC 6514,[1] Sharpless 30, RCW 147, Gum 76
Lihat pula: Daftar nebula