NGC 3791
| Galaxie NGC 3791 | |
|---|---|
| AladinLite | |
| Sternbild | Becher |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 11h 39m 38,5s [1] |
| Deklination | −09° 22′ 02″ [1] |
| Erscheinungsbild | |
| Morphologischer Typ | (R)SAB0 pec[1] |
| Helligkeit (visuell) | 13,4 mag[2] |
| Helligkeit (B-Band) | 14,4 mag[2] |
| Winkelausdehnung | 1,4' × 1,0'[2] |
| Positionswinkel | 164°[2] |
| Flächenhelligkeit | 13,7 mag/arcmin²[2] |
| Physikalische Daten | |
| Rotverschiebung | 0.018429 ± 0.000150[1] |
| Radialgeschwindigkeit | (5525 ± 45) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) |
(240 ± 17)e6 Lj (73,7 ± 5,2) Mpc [1] |
| Geschichte | |
| Entdeckung | Wilhelm Herschel |
| Entdeckungsdatum | 22. Februar 1787 |
| Katalogbezeichnungen | |
| NGC 3791 • PGC 36156 • MCG -01-30-020 • 2MASX J11394183-0922028 • GC 2482 • H III 609 • h 935 • LDCE 0824 NED014 | |
NGC 3791 ist eine linsenförmige Galaxie vom Hubble-Typ SB0[2] im Sternbild Becher am Südsternhimmel. Sie ist schätzungsweise 240 Millionen Lichtjahre von der Milchstraße entfernt.
Das Objekt wurde am 22. Februar 1787 vom deutsch-britischen Astronomen Wilhelm Herschel entdeckt.[3]
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