NGC 5427

Galaxie
NGC 5427
{{{Kartentext}}}
Die Galaxien NGC 5426 und NGC 5427 (links) aufgenommen mit dem VLT
AladinLite
Sternbild Jungfrau
Position
Äquinoktium: J2000.0, Epoche: J2000.0
Rektaszension 14h 03m 25,6s [1]
Deklination −06° 01′ 51″ [1]
Erscheinungsbild
Morphologischer Typ SA(s)c / pec / Sy2 / HII[1]
Helligkeit (visuell) 11,4 mag[2]
Helligkeit (B-Band) 12,1 mag[2]
Winkel­ausdehnung 2,9′ × 2,2′[2]
Positionswinkel 66°[2]
Inklination °
Flächen­helligkeit 13,3 mag/arcmin²[2]
Physikalische Daten
Zugehörigkeit LGG 374[1][3]
Rotverschiebung 0,008733 ± 0,000010[1]
Radial­geschwin­digkeit (2618 ± 3) km/s[1]
Hubbledistanz
H0 = 73 km/(s • Mpc) 		(114 ± 8) · 106 Lj
(35,1 ± 2,5) Mpc [1]
Absolute Helligkeit mag
Masse M☉
Durchmesser 95.000 Lj[4]
Metallizität [Fe/H] {{{Metallizität}}}
Geschichte
Entdeckung William Herschel
Entdeckungsdatum 5. März 1785
Katalogbezeichnungen
NGC 5427 • UGC UGCA 381 • PGC 50084 • MCG -01-36-003 • IRAS 14008-0547 • 2MASX J14032604-0601509 • Arp 271 • VV 21a • GC 3751 • H II 310 • h 1735 • LDCE 1026 NED004

NGC 5427 ist eine Spiralgalaxie vom Hubble-Typ SA(s)c im Sternbild Jungfrau und befindet sich etwa 6 Grad südlich des Himmelsäquators. Sie ist schätzungsweise 114 Millionen Lichtjahre von der Milchstraße entfernt und wird als Seyfert-2-Galaxie gelistet. Sie bildet mit NGC 5426 das wechselwirkendes Galaxienpaar Arp 271.

Halton Arp gliederte seinen Katalog ungewöhnlicher Galaxien nach rein morphologischen Kriterien in Gruppen. Dieses Galaxienpaar gehört zu der Klasse Doppelgalaxien mit verbundenen Armen.

Das Objekt wurde am 5. März 1785 von dem deutsch-britischen Astronomen Friedrich Wilhelm Herschel entdeckt.[5]

NGC 5427-Gruppe (LGG 374)

Galaxie Alternativname Entfernung/Mio. Lj
NGC 5426 PGC 50084 113
NGC 5427 PGC 50083 114
NGC 5468 PGC 50323 125
NGC 5472 PGC 50345 128
NGC 5493 PGC 50670 117

Literatur

  • König, Michael & Binnewies, Stefan (2019): Bildatlas der Galaxien: Die Astrophysik hinter den Astrofotografien, Stuttgart: Kosmos, S. 265
  • Jeff Kanipe und Dennis Webb: The Arp Atlas of Peculiar Galaxies – A Chronicle and Observer´s Guide, Richmond 2006, ISBN 978-0-943396-76-7

Einzelnachweise

  1. ↑ a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e SEDS: NGC 5427
  3. ↑ VizieR
  4. ↑ NASA/IPAC
  5. ↑ Seligman

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