Nebula Trifid
nebula emisi di rasi bintang Sagitarius
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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]
Nebula | |
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Data pengamatan: J2000 epos | |
Asensio rekta | 18j 02m 23d[1] |
Deklinasi | -23° 01′ 48″[1] |
Jarak | 5200 ly[2] ly |
Magnitudo semu (V) | +6.3[1] |
Dimensi semu (V) | 28 arcmins |
Rasi bintang | Sagittarius |
Sebutan | M20, NGC 6514,[1] Sharpless 30, RCW 147, Gum 76 |
Referensi
- ^ a b c d "SIMBAD Astronomical Database". Results for NGC 6514. Diakses tanggal 2006-11-16.
- ^ "Star formation in the Trifid Nebula" (PDF). Astronomy&Astrophysics 489, 157–171 (2008). Diakses tanggal 2011-10-09.
- ^ "Science Daily". Science Daily article on Trifid Nebula. Diakses tanggal 2010-07-06.