IC 449
| Galaxie IC 449 | |
|---|---|
| AladinLite | |
| Sternbild | Giraffe |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 06h 45m 41,1s [1] |
| Deklination | +71° 20′ 38″ [1] |
| Erscheinungsbild | |
| Morphologischer Typ | E:[1] |
| Helligkeit (visuell) | 12,5 mag[2] |
| Helligkeit (B-Band) | 13,5 mag[2] |
| Winkelausdehnung | 1,7′ × 1,3′[2] |
| Positionswinkel | 69°[2] |
| Flächenhelligkeit | 13,4 mag/arcmin²[2] |
| Physikalische Daten | |
| Rotverschiebung | 0.012801 ± 0.000049[1] |
| Radialgeschwindigkeit | (3838 ± 15) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) |
(177 ± 12)e6 Lj (54,2 ± 3,8) Mpc [1] |
| Durchmesser | 85.000 Lj[3] |
| Geschichte | |
| Entdeckung | Lewis Swift |
| Entdeckungsdatum | 6. September 1888 |
| Katalogbezeichnungen | |
| IC 449 • UGC 3515 • PGC 19554 • CGCG 330-012 • MCG +12-07-014 • 2MASX J06454107+7120378 • GALEXASC J064541.29+712035.8 | |
IC 449 ist eine elliptische Galaxie vom Hubble-Typ E2 im Sternbild Giraffe am Nordsternhimmel. Sie ist rund 177 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 85.000 Lichtjahren.
Das Objekt wurde am 6. September 1888 vom US-amerikanischen Astronomen Lewis Swift entdeckt.[4]
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