NGC 7458
| Galaxie NGC 7458 | |
|---|---|
| |
| SDSS-Aufnahme | |
| AladinLite | |
| Sternbild | Fische |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 23h 01m 28,6s [1] |
| Deklination | +01° 45′ 12″ [1] |
| Erscheinungsbild | |
| Morphologischer Typ | E[1] |
| Helligkeit (visuell) | 12,6 mag[2] |
| Helligkeit (B-Band) | 13,6 mag[2] |
| Winkelausdehnung | 1,4' × 1,2'[2] |
| Positionswinkel | 15°[2] |
| Flächenhelligkeit | 13,2 mag/arcmin²[2] |
| Physikalische Daten | |
| Zugehörigkeit | LDCE 1554[1] |
| Rotverschiebung | 0,016808 ± 0,000063[1] |
| Radialgeschwindigkeit | (5039 ± 19) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) |
(231 ± 16)e6 Lj (70,9 ± 5,0) Mpc [1] |
| Durchmesser | 95.000 Lj[3] |
| Geschichte | |
| Entdeckung | William Herschel |
| Entdeckungsdatum | 18. September 1786 |
| Katalogbezeichnungen | |
| NGC 7458 • UGC 12309 • PGC 70277 • CGCG 379-022 • MCG +00-58-020 • 2MASX J23012865+0145119 • GC 4884 • H II 590 • h 2200 • | |
NGC 7458 ist eine elliptische Galaxie vom Hubble-Typ E im Sternbild Fische. Sie ist schätzungsweise 231 Millionen Lichtjahre von der Milchstraße entfernt.
Das Objekt wurde am 18. September 1786 von William Herschel entdeckt.[4]
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