NGC 4091

Galaxie
NGC 4091
{{{Kartentext}}}
NGC 4091 & NGC 4089[1]
AladinLite
Sternbild Haar der Berenike
Position
Äquinoktium: J2000.0, Epoche: J2000.0
Rektaszension 12h 05m 40,089s [2]
Deklination +20° 33′ 20,64″ [2]
Erscheinungsbild
Morphologischer Typ S / LINER[2]
Helligkeit (visuell) 14,5 mag[3]
Helligkeit (B-Band) 15,3 mag[3]
Winkel­ausdehnung 0,9' × 0,3'[3]
Positionswinkel 43°[3]
Inklination °
Flächen­helligkeit 13,0 mag/arcmin²[3]
Physikalische Daten
Zugehörigkeit WBL 374[2]
Rotverschiebung 0.025638 ± 0.000090[2]
Radial­geschwin­digkeit 7686 ± 27 km/s[2]
Hubbledistanz
H0 = 73 km/(s • Mpc) 		(342 ± 24) · 106 Lj
(104,8 ± 7,3) Mpc [2]
Absolute Helligkeit mag
Masse M☉
Durchmesser Lj
Metallizität [Fe/H]
Geschichte
Entdeckung Heinrich d’Arrest
Entdeckungsdatum 2. Mai 1864
Katalogbezeichnungen
NGC 4091 • UGC 7083 • PGC 38308 • CGCG 128-022 • MCG +04-29-019 • 2MASX J12054008+2033201 • LDCE 864 NED015 • NSA 118291 • WISEA J120540.10+203320.8

NGC 4091 ist eine Spiralgalaxie vom Hubble-Typ Sbc[3] mit aktivem Galaxienkern im Sternbild Coma Berenices am Nordsternhimmel. Sie ist schätzungsweise 342 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 90.000 Lichtjahren. Vermutlich bildet sie gemeinsam mit NGC 4089 ein gravitativ gebundenes Galaxienpaar.

Im selben Himmelsareal befinden sich u. a. die Galaxien NGC 4092, NGC 4093, NGC 4095, NGC 4098.

Das Objekt wurde am 2. Mai 1864 vom deutsch-dänischen Astronomen Heinrich Louis d’Arrest entdeckt.[4]

Commons: NGC 4091 – Sammlung von Bildern, Videos und Audiodateien

Einzelnachweise

  1. ↑ Aladin Lite
  2. ↑ a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e f SEDS: NGC 4091
  4. ↑ Seligman

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