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NGC 4240

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Galaxie
NGC 4240/NGC 4243
(({Kartentext))}
AladinLite
Sternbild Jungfrau
Position
ÄquinoktiumJ2000.0, Epoche: J2000.0
Rektaszension 12h 17m 24,3s[1]
Deklination −09° 57′ 06″[1]
Erscheinungsbild
Morphologischer Typ E+[1][2]
Helligkeit (visuell) 12,7 mag[2]
Helligkeit (B-Band) 13,7 mag[2]
Winkel­ausdehnung 1,3' × 1,2'[2]
Positionswinkel [2]
Inklination °
Flächen­helligkeit 13,3 mag/arcmin²[2]
Physikalische Daten
Zugehörigkeit [1]
Rotverschiebung 0.006638 ± 0.000057[1]
Radial­geschwin­digkeit (1990 ± 17) km/s[1]
Hubbledistanz
H0 = 73 km/(s • Mpc)
(83 ± 6) · 106 Lj
(25,5 ± 1,8) Mpc [1]
Absolute Helligkeit mag
Masse M
Durchmesser Lj
Metallizität [Fe/H]
Geschichte
Entdeckung Wilhelm Tempel
Entdeckungsdatum 20. Mai 1875
Katalogbezeichnungen
NGC 4240/4243 • PGC 39411 • MCG -02-31-029 • 2MASX J12172434-0957056 •

NGC 4240 = NGC 4243 ist eine elliptische Galaxie vom Hubble-Typ E im Sternbild Jungfrau südlich der Ekliptik. Sie ist schätzungsweise 83 Millionen Lichtjahre von der Milchstraße entfernt.

Das Objekt wurde am 20. Mai 1875 von Wilhelm Tempel entdeckt.[3]

Einzelnachweise

[Bearbeiten | Quelltext bearbeiten]
  1. a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS: NGC 4240
  3. Seligman
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NGC 4240
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