NGC 2844

Galaxie
NGC 2844
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SDSS-Aufnahme
AladinLite
Sternbild Luchs
Position
Äquinoktium: J2000.0, Epoche: J2000.0
Rektaszension 09h 21m 48,0s [1]
Deklination +40° 09′ 05″ [1]
Erscheinungsbild
Morphologischer Typ SA(r)a: / HII[1]
Helligkeit (visuell) 12,8 mag[2]
Helligkeit (B-Band) 13,7 mag[2]
Winkel­ausdehnung 1,7′ × 0,8′[2]
Positionswinkel 13°[2]
Inklination °
Flächen­helligkeit 13,0 mag/arcmin²[2]
Physikalische Daten
Zugehörigkeit LDCE 628[1]
Rotverschiebung 0.004937 ± 0.000005[1]
Radial­geschwin­digkeit (1480 ± 1) km/s[1]
Hubbledistanz
H0 = 73 km/(s • Mpc) 		(66 ± 5) · 106 Lj
(20,2 ± 1,4) Mpc [1]
Absolute Helligkeit mag
Masse M☉
Durchmesser 35.000 Lj[3]
Metallizität [Fe/H]
Geschichte
Entdeckung William Herschel
Entdeckungsdatum 18. März 1787
Katalogbezeichnungen
NGC 2844 • UGC 4971 • PGC 26501 • CGCG 209-057 • MCG +07-19-064 • IRAS 09186+4021 • 2MASX J09214802+4009043 • GC 1826 • H III 628 •

NGC 2844 ist eine Spiralgalaxie mit ausgedehnten Sternentstehungsgebieten vom Hubble-Typ Sa im Sternbild Luchs am Nordsternhimmel. Sie ist schätzungsweise 66 Mio. Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 35.000 Lj.

Im selben Himmelsareal befinden sich u. a. die Galaxien NGC 2838, NGC 2852, NGC 2853.

Das Objekt wurde am 18. März 1787 von Wilhelm Herschel entdeckt.[4]

Einzelnachweise

  1. ↑ a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e SEDS: NGC 2844
  3. ↑ NASA/IPAC
  4. ↑ Seligman

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