NGC 7205

Galaxie
NGC 7205
{{{Kartentext}}}
NGC 7205 & ESO 146-7
AladinLite
Sternbild Indus
Position
ÄquinoktiumJ2000.0, Epoche: J2000.0
Rektaszension 22h 08m 34,3s [1]
Deklination −57° 26′ 33,0″ [1]
Erscheinungsbild
Morphologischer Typ SA(s)bc / HII / LINER[1]
Helligkeit (visuell) 10,8 mag[2]
Helligkeit (B-Band) 11,6 mag[2]
Winkel­ausdehnung 4′ × 2′[2]
Positionswinkel 73°[2]
Inklination °
Flächen­helligkeit 12,9 mag/arcmin²[2]
Physikalische Daten
Zugehörigkeit [1]
Rotverschiebung 0,005623 ± 0,000019[1]
Radial­geschwin­digkeit (1686 ± 6) km/s[1]
Hubbledistanz
H0 = 73 km/(s • Mpc)
(72 ± 5) · 106 Lj
(22,2 ± 1,6) Mpc [1]
Absolute Helligkeit mag
Masse M
Durchmesser 85.000 Lj[3]
Metallizität [Fe/H] {{{Metallizität}}}
Geschichte
Entdeckung John Herschel
Entdeckungsdatum 10. Juli 1834
Katalogbezeichnungen
NGC 7205 • PGC 68128 • ESO 146-009 • IRAS 22052-5741 • 2MASX J22083427-5726331 • SGC 220510-5741.3 • AM 2205-574 • GC 4753 • h 3919 • HIPASS J2208-57

NGC 7205 ist eine aktive Spiralgalaxie mit ausgedehnten Sternentstehungsgebieten im Sternbild Indianer an der Grenze zum Sternbild Tukan am Südsternhimmel. Sie ist schätzungsweise 72 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 90.000 Lichtjahren.

Das Objekt wurde am 10. Juli 1834 vom britischen Astronomen John Herschel entdeckt.[4]

Siehe auch

Einzelnachweise

  1. a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  2. a b c d e SEDS: NGC 7205
  3. NASA/IPAC
  4. Seligman

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