NGC 4161

Galaxie
NGC 4161
{{{Kartentext}}}
SDSS-Aufnahme
AladinLite
Sternbild Großer Bär
Position
Äquinoktium: J2000.0, Epoche: J2000.0
Rektaszension 12h 11m 33,4s [1]
Deklination +57° 44′ 15″ [1]
Erscheinungsbild
Morphologischer Typ S? / LINER[1]
Helligkeit (visuell) 13,0 mag[2]
Helligkeit (B-Band) 13,7 mag[2]
Winkel­ausdehnung 1,1' × 0,7'[2]
Positionswinkel 50°[2]
Inklination °
Flächen­helligkeit 12,6 mag/arcmin²[2]
Physikalische Daten
Zugehörigkeit [1]
Rotverschiebung 0.016341 ± 0.000030[1]
Radial­geschwin­digkeit 4899 ± 9 km/s[1]
Hubbledistanz
H0 = 73 km/(s • Mpc) 		(223 ± 16) · 106 Lj
(68,4 ± 4,8) Mpc [1]
Absolute Helligkeit mag
Masse M☉
Durchmesser Lj
Metallizität [Fe/H]
Geschichte
Entdeckung William Herschel
Entdeckungsdatum 17. April 1789
Katalogbezeichnungen
NGC 4161 • UGC 7191 • PGC 38834 • CGCG 292-078 • MCG +10-18-002 • IRAS 12090+5800 • 2MASX J12113350+5744147 • GC 2764 • H II 803 • GALEXASC J121133.45+574416.0

NGC 4161 ist eine Spiralgalaxie mit aktivem Galaxienkern vom Hubble-Typ Sc[2] im Sternbild Großer Bär am Nordsternhimmel. Sie ist schätzungsweise 223 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 70.000 Lichtjahren.
Im selben Himmelsareal befindet sich u. a. die Galaxie NGC 4149.

Die Typ-II-Supernovae SN 2006dk und SN 2007gw wurden hier beobachtet.[3]

Das Objekt wurde am 17. April 1789 von William Herschel entdeckt.[4]

Einzelnachweise

  1. ↑ a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e f SEDS: NGC 4161
  3. ↑ Simbad
  4. ↑ Seligman

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