NGC 5345

Galaxie
NGC 5345
{{{Kartentext}}}
SDSS-Aufnahme
AladinLite
Sternbild Jungfrau
Position
Äquinoktium: J2000.0, Epoche: J2000.0
Rektaszension 13h 54m 14,2s [1]
Deklination −01° 26′ 11″ [1]
Erscheinungsbild
Morphologischer Typ SA(r)a pec: / HII / LINER[1][2]
Helligkeit (visuell) 12,4 mag[2]
Helligkeit (B-Band) 13,3 mag[2]
Winkel­ausdehnung 1,6′ × 1,5′[2]
Positionswinkel 176°[2]
Inklination °
Flächen­helligkeit 13,2 mag/arcmin²[2]
Physikalische Daten
Zugehörigkeit [1]
Rotverschiebung 0.023970 ± 0.000150[1]
Radial­geschwin­digkeit (7186 ± 45) km/s[1]
Hubbledistanz
H0 = 73 km/(s • Mpc) 		(319 ± 23) · 106 Lj
(97,8 ± 6,9) Mpc [1]
Absolute Helligkeit mag
Masse M☉
Durchmesser Lj
Metallizität [Fe/H] {{{Metallizität}}}
Geschichte
Entdeckung Wilhelm Herschel
Entdeckungsdatum 15. April 1787
Katalogbezeichnungen
NGC 5345 • UGC 8820 • PGC 49415 • CGCG 017-094 • MCG +00-35-026 • IRAS 13516-0111 • 2MASX J13541422-0126111 • GC 3686 • H II 686 • h 1693 • GALEXASC J135414.27-012612.5 • LDCE 1010 NED003

NGC 5345 ist eine 12,5 mag helle aktive Spiralgalaxie mit ausgedehnten Sternentstehungsgebieten vom Hubble-Typ Sa im Sternbild Jungfrau auf der Ekliptik. Sie ist schätzungsweise 319 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 150.000 Lichtjahren.
Im selben Himmelsareal befindet sich u. a. die Galaxie IC 4338.

Das Objekt wurde am 15. April 1787 von Wilhelm Herschel[3] mit einem 18,7-Zoll-Spiegelteleskop entdeckt, der sie dabei mit „pB, S, mbM“[4] beschrieb.

  • NGC 5345. SIMBAD, abgerufen am 14. Februar 2016 (englisch).
  • NGC 5345. DSO Browser, abgerufen am 14. Februar 2016 (englisch).

Einzelnachweise

  1. ↑ a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e f SEDS: NGC 5345
  3. ↑ Seligman
  4. ↑ Auke Slotegraaf: NGC 5345. Deep Sky Observer's Companion, abgerufen am 14. Februar 2016 (englisch).

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