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NGC 71

NGC 71
NGC 71 is the elliptical galaxy directly above spiral galaxy NGC 70 (right) and NGC 68 (left), above NGC 71 is NGC 72, a barred spiral galaxy
Data pengamatan (J2000.0 epos)
Rasi bintangAndromeda
Asensio rekta 00j 18m 23.57d
Deklinasi 30° 03′ 47.7″[1]
Pergeseran merah0.022339[2]
Kecepatan radial helio6697 km/s[2]
Jarak (comoving)95 Mpc (redshift)
92 Mpc (F-J Law)
Jarak310 Mly (redshift)
300 Mly[3] (F-J Law)[2]
Kelompok dan gugusan galaksiNGC 68 group
Magnitudo semu (V)13.2[3]
15.6[1]
Ciri-ciri
JenisE5/S0
Ukuran110,000 ly[3]
130,000[4]
Ukuran semu (V)1.25'x0.8'[3]
1.5'x1'[5]
Penamaan lain
UGC 173, VV 166c, CGCG 499-107, CGCG 0015.8+2947, MCG +05-01-068, 2MASX J00182359+3003475, 2MASXi J0018235+300347, WBL 007-009, LDCE 0012 NED015, HDCE 0011 NED006, USGC U012 NED05, HOLM 006B, MAPS-PP O_1257_0202235B, PGC 1197, SRGb 062.056, UZC J001823.6+300348, RX J0018.3+3003, 1RXS J001823.8+300357 , RX J0018.3+3003:[BEV98] 002, VCV2001 J001823.5+300347, VCV2006 J001823.5+300347[2]

NGC 71 adalah galaksi elips yang terletak di konstelasi Andromeda. Galaksi tersebut berada di grup NGC 68. Galaksi ini ditemukan oleh R. J. Mitchell pada tahun 1855, dan diamati pada tahun 1865 oleh Heinrich d'Arrest, yang menggambarkannya sebagai "galaksi yang sangat redup, sangat kecil, dan bulat".[3] Galaksi tersebut berukuran sekitar 110.000-130.000 tahun cahaya, membuatnya sedikit lebih besar dari Bima Sakti. Galaksi tersebut merupakan yang terbesar kedua dalam kelompok NGC 68, setelah galaksi spiral NGC 70.

Referensi

[sunting | sunting sumber]
  1. ^ a b "Skyserver Object Explored - NGC 71". Skyserver.sdss.org. Sloan Digital Sky Survey. Diakses tanggal 8 June 2015. 
  2. ^ a b c d "NASA/IPAC Extragalactic Database - NGC 71". NED. NASA/IPAC. Diakses tanggal 8 June 2015. 
  3. ^ a b c d e Seligman, Courtney. "New General Catalog Objects: NGC 50 - 99". cseligman.com. Diakses tanggal 8 June 2015. 
  4. ^ "Angular Size Calculator". www.1728.org. Diakses tanggal 8 June 2015. 
  5. ^ "NGC 71 >> Deep Sky Object Browser". Deep Sky Objects Browser. Diakses tanggal 8 June 2015. 
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NGC 71
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