NGC 3054

Galaxie
NGC 3054
{{{Kartentext}}}
AladinLite
Sternbild Wasserschlange
Position
Äquinoktium: J2000.0, Epoche: J2000.0
Rektaszension 09h 54m 28,6s [1]
Deklination −25° 42′ 12″ [1]
Erscheinungsbild
Morphologischer Typ SAB(r)bc[1]
Helligkeit (visuell) 11,4 mag[2]
Helligkeit (B-Band) 12,2 mag[2]
Winkel­ausdehnung 3,8′ × 2,4′[2]
Positionswinkel 118°[2]
Inklination °
Flächen­helligkeit 13,7 mag/arcmin²[2]
Physikalische Daten
Zugehörigkeit NGC 3054-Gruppe
IC 2537-Gruppe
LGG 185[1][3]
Rotverschiebung 0.008091 ± 0.000023[1]
Radial­geschwin­digkeit (2426 ± 7) km/s[1]
Hubbledistanz
H0 = 73 km/(s • Mpc) 		(99 ± 7) · 106 Lj
(30,3 ± 2,1) Mpc [1]
Absolute Helligkeit mag
Masse M☉
Durchmesser 110.000 Lj[4]
Metallizität [Fe/H] {{{Metallizität}}}
Geschichte
Entdeckung Christian Peters
Entdeckungsdatum 3. April 1859
Katalogbezeichnungen
NGC 3054 • UGC 187 • PGC 28571 • ESO 499-018 • MCG -04-24-005 • 2MASX J09542860-2542123 • SGC 095212-2527.9 • HIPASS J0954-25 • LDCE 729 NED014

NGC 3054 ist eine Balken-Spiralgalaxie vom Hubble-Typ SBb im Sternbild Hydra südlich der Ekliptik. Sie ist schätzungsweise 99 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 115.000 Lichtjahren.

Die Galaxie ist Namensgeberin der NGC 3054-Gruppe zu deren Mitgliedern weiterhin NGC 3051, NGC 3078, NGC 3084, NGC 3089, IC 2531, IC 2537, PGC 28803 und PGC 28874 gehören.

Die Supernovae SN 2004de und SN 2006T (Typ-IIb) wurden hier beobachtet.[5] Am 19. Februar 2022 wurde erneut eine Supernova (Typ Ib) in NGC 3054 beobachtet (AT2022crv), die am 6. März 2022 eine scheinbare Helligkeit von 15,3 mag erreicht hat.[6]

Das Objekt wurde am 3. April 1859 von dem deutsch-amerikanischen Astronomen Christian Heinrich Friedrich Peters entdeckt.[7]

NGC 3054-Gruppe (LGG 185)

Galaxie Alternativname Entfernung/Mio. Lj
NGC 3054 PGC 28571 99
NGC 3051 PGC 28536 104
NGC 3078 PGC 28806 106
NGC 3084 PGC 28841 104
NGC 3089 PGC 28882 112
IC 2531 PGC 28909 101
IC 2537 PGC 29179 115
PGC 28874 ESO 499-032 100
PGC 28803 ESO 499-026 97
Commons: NGC 3054 – Sammlung von Bildern, Videos und Audiodateien

Einzelnachweise

  1. ↑ a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e SEDS: NGC 3054
  3. ↑ VizieR
  4. ↑ NASA/IPAC
  5. ↑ Simbad SN
  6. ↑ Latest Supernovae. Abgerufen am 25. April 2022.
  7. ↑ Seligman

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