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NGC 5102

NGC 5102
HUT tarafından elde edilen NGC 5102 fotoğrafı.
Gözlem verisi (Dönem J2000)
TakımyıldızErboğa
Sağ açıklık (α)13sa 21d 57.6s[1]
Dik açıklık (δ)-36° 37′ 49″[1]
Galaksi sınıfıSA0- HII[1]
Görünür büyüklük (V)+9,5[2]
Görünür büyüklük (B)+10,5[2]
Yüzey parlaklığı (SB)13,0[2]
Boyut8′.7 × 2′.8[1]
Özellikler
Grup veya kümeM83 Grubu
NGC 5128 altgrubu
Kırmızıya kayma (z)(+1561 ± 7) ∙ 10-6[1]
Helyo dikey hız ()(+468 ± 2) km/sn[1]
Mesafe12.1 ± 0.7 MIy (3.70 ± 0.23 Mpc)[3][4][5]
Keşif
John Herschel (1835)
Katalog belirtmeleri
NGC 5102 • GC 3504 • IRAS 13191-3622 • ESO 382-50 • h 3492 • MCG -6-29-31 • PGC 46674 • SGC 131907-3622.2 • AM 1319-362 • HIPASS J1321-36
  Wikimedia Commons'ta ilgili ortam

NGC 5102 Erboğa takımyıldızı yönünde yaklaşık olarak 12 milyon ışık yılı uzaklıkta bulunan bir merceksi gökada. John Herschel tarafından 21 Nisan 1835 tarihinde keşfedilmiştir. Gökada, M83 Grubu içindeki Erboğa altgrubu üyesidir.

Uzaklık ölçümleri

Uzaklık ölçümlerinde iki metot kullanılmıştır. Yüzey parlaklığı metodu kullanılarak NGC 5102'nin uzaklığı, 13.0 ± 0.8 MIy (4.0 ± 0.2 Mpc) olarak hesaplanmıştır.[3] TRGB metodu kullanılarak NGC 5102'nin uzaklığı, 11.1 ± 1.3 MIy (3.40 ± 0.39 Mpc) olarak hesaplanmıştır.[4] Bu iki metodun ortalaması alındığında NGC 5102'nin uzaklığı, 12.1 ± 0.7 MIy (3.70 ± 0.23 Mpc) olarak hesaplanmaktadır.

Kaynakça

  1. ^ a b c d e f "NASA/IPAC Extragalactic Database". Searching NED for object "NGC 5102*" (İngilizce). Erişim tarihi: 20 Temmuz 2010. 
  2. ^ a b c "SEDS". Revised NGC Data for NGC 5102 (İngilizce). [ölü/kırık bağlantı]
  3. ^ a b J. L. Tonry, A. Dressler, J. P. Blakeslee, E. A. Ajhar, A. B. Fletcher, G. A. Luppino, M. R. Metzger, C. B. Moore (2001). "The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances". Astrophysical Journal. 546 (2). ss. 681-693. doi:10.1086/318301. 14 Şubat 2008 tarihinde kaynağından arşivlendi. Erişim tarihi: 20 Temmuz 2010. 
  4. ^ a b I. D. Karachentsev, V. E. Karachentseva, W. K. Hutchmeier, D. I. Makarov (2004). "A Catalog of Neighboring Galaxies". Astronomical Journal. Cilt 127. ss. 2031-2068. doi:10.1086/382905. 12 Ekim 2007 tarihinde kaynağından arşivlendi. Erişim tarihi: 20 Temmuz 2010. 
  5. ^ Karachentsev, I. D.; Kashibadze, O. G. (2006). "Masses of the local group and of the M81 group estimated from distortions in the local velocity field". Astrophysics. 49 (1). ss. 3-18. doi:10.1007/s10511-006-0002-6. 

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