NGC 7540
| Galaxie NGC 7540 | |
|---|---|
| AladinLite | |
| Sternbild | Pegasus |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 23h 14m 36,1s [1] |
| Deklination | +15° 57′ 01″ [1] |
| Erscheinungsbild | |
| Morphologischer Typ | E[1] |
| Helligkeit (visuell) | 14,7 mag[2] |
| Helligkeit (B-Band) | 15,7 mag[2] |
| Winkelausdehnung | 0,5' × 0,3'[2] |
| Positionswinkel | 160°[2] |
| Flächenhelligkeit | 12,7 mag/arcmin²[2] |
| Physikalische Daten | |
| Rotverschiebung | 0,025624 ± 0,000160[1] |
| Radialgeschwindigkeit | (7682 ± 48) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) |
(351 ± 25)e6 Lj (107,6 ± 7,6) Mpc [1] |
| Geschichte | |
| Entdeckung | Albert Marth |
| Entdeckungsdatum | 3. November 1864 |
| Katalogbezeichnungen | |
| NGC 7540 • PGC 70788 • CGCG 454-010 • 2MASX J23143608+1557010 • | |
NGC 7540 ist eine elliptische Galaxie vom Hubble-Typ E im Sternbild Pegasus. Sie ist schätzungsweise 351 Millionen Lichtjahre von der Milchstraße entfernt.
Das Objekt wurde am 3. November 1864 von Albert Marth entdeckt.[3]
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