NGC 3311

Galaxie
NGC 3311
{{{Kartentext}}}
Hochaufgelöste Aufnahme des Hubble-Weltraumteleskops von dem Kern von NGC 3311: Der Staubstreifen im Zentrum und (punktförmige) Kugelsternhaufen werden deutlich.[1]
AladinLite
Sternbild Wasserschlange
Position
Äquinoktium: J2000.0, Epoche: J2000.0
Rektaszension 10h 36m 42,8s [2]
Deklination −27° 31′ 42″ [2]
Erscheinungsbild
Morphologischer Typ cD;E+2[2]
Helligkeit (visuell) 11,6 mag[3]
Helligkeit (B-Band) 12,6 mag[3]
Winkel­ausdehnung 2,3′ × 2,1′[3]
Positionswinkel 19°[3]
Inklination °
Flächen­helligkeit 13.4 mag/arcmin²[3]
Physikalische Daten
Zugehörigkeit Hydra-Cluster, Abell 1060
LGG 206[2][4]
Rotverschiebung 0.012759 ± 0.000027[2]
Radial­geschwin­digkeit (3825 ± 8) km/s[2]
Hubbledistanz
H0 = 73 km/(s • Mpc) 		(162 ± 11) · 106 Lj
(49,6 ± 3,5) Mpc [2]
Absolute Helligkeit mag
Masse M☉
Durchmesser 110.000 Lj[5]
Metallizität [Fe/H]
Geschichte
Entdeckung John Herschel
Entdeckungsdatum 30. März 1835
Katalogbezeichnungen
NGC 3311 • PGC 31478 • ESO 501-38 • MCG -04-25-036 • 2MASX J10364282-2731420 • SGC 103422-2716.1 • AM 1034-271 •

NGC 3311 ist eine elliptische Galaxie vom Hubble-Typ E/S0 im Sternbild Wasserschlange am Südsternhimmel. Sie ist schätzungsweise 162 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 110.000 Lj. Sie ist die hellste Galaxie im Hydra-Galaxienhaufen.[6]

Im selben Himmelsareal befinden sich u. a. die Galaxien NGC 3307, NGC 3308, NGC 3309, NGC 3312.

NGC 3311 ist vor Messier 87 die Galaxie mit der größten bekannten Anzahl von Kugelsternhaufen; sie umfasst etwa 16.000.[7][8]

Das Objekt wurde von dem britischen Astronomen John Herschel am 30. März 1835 mit einem 47,5-cm-Teleskop entdeckt.[9]

NGC 3311-Gruppe (LGG 206)

Galaxie Alternativname Entfernung / Mio. Lj
NGC 3307 PGC 31430 160
NGC 3308 PGC 31438 150
NGC 3311 PGC 31478 162
NGC 3315 PGC 31540 167
IC 2586 PGC 31025 154
PGC 31154 ESO 436-34 153
PGC 31495 ESO 437-13 149
PGC 31366 ESO 501-25 162
PGC 31574 ESO 501-53 161
PGC 31039 160
PGC 31065 146
PGC 31091 151
PGC 31268 159
PGC 31270 151
PGC 31289 ??
PGC 31402 151
PGC 31432 149
PGC 31510 161
PGC 31629 154

Einzelnachweise

  1. ↑ P. G. van Dokkum, M. Franx: Dust in the Cores of Early-Type Galaxies, bibcode:1995AJ....110.2027V
  2. ↑ a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e SEDS: NGC 3311
  4. ↑ VizieR
  5. ↑ NASA/IPAC
  6. ↑ SIMBAD Hydra Cluster
  7. ↑ Bild von NGC 3311 (Memento vom 3. März 2016 im Internet Archive). Aufgenommen mit dem Gemini-Teleskop.
  8. ↑ Elizabeth M. H. Wehner, William E. Harris, Bradley C. Whitmore, Barry Rothberg, Kristin A. Woodley: The Globular Cluster Systems around NGC 3311 and NGC 3309, 2008 ApJ 681 1233
  9. ↑ Seligman

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