IC 4660
| Galaxie IC 4660 | |
|---|---|
| AladinLite | |
| Sternbild | Kleiner Bär |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 17h 21m 45,2s [1] |
| Deklination | +75° 50′ 55″ [1] |
| Erscheinungsbild | |
| Morphologischer Typ | Sb[1] |
| Helligkeit (visuell) | 13,5 mag[2] |
| Helligkeit (B-Band) | 14,4 mag[2] |
| Winkelausdehnung | 1,3′ × 0,3′[2] |
| Positionswinkel | 170°[2] |
| Flächenhelligkeit | 12,3 mag/arcmin²[2] |
| Physikalische Daten | |
| Zugehörigkeit | LGG 410[3] |
| Rotverschiebung | 0.004146 ± 0.000013[1] |
| Radialgeschwindigkeit | (1243 ± 4) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) |
(64 ± 5)e6 Lj (19,6 ± 1,4) Mpc [1] |
| Durchmesser | 25.000 Lj[4] |
| Geschichte | |
| Entdeckung | Isaac Roberts |
| Entdeckungsdatum | 11. September 1895 |
| Katalogbezeichnungen | |
| IC 4660 • UGC 10848 • PGC 60124 • CGCG 355-032 • MCG +13-12-023 • IRAS 19296+3546 • 2MASX J17214521+7550552 • | |
IC 4660 ist eine Spiralgalaxie vom Hubble-Typ Sb im Sternbild Kleiner Bär. Sie ist schätzungsweise 64 Millionen Lichtjahre von der Milchstraße entfernt.
Das Objekt wurde am 11. September 1895 vom walisischen Astronomen Isaac Roberts entdeckt.[5]
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