IC 4958
| Galaxie IC 4958 | |
|---|---|
| |
| Legacy Surveys DR11 | |
| AladinLite | |
| Sternbild | Pfau |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 20h 15m 35,3s [1] |
| Deklination | −72° 42′ 40″ [1] |
| Erscheinungsbild | |
| Morphologischer Typ | Sc[2] |
| Helligkeit (visuell) | 15,2 mag[2] |
| Helligkeit (B-Band) | 16,0 mag[2] |
| Winkelausdehnung | 0,4' × 0,3'[2] |
| Flächenhelligkeit | 12,4 mag/arcmin²[2] |
| Physikalische Daten | |
| Rotverschiebung | 0.013286 ± 0.000033[1] |
| Radialgeschwindigkeit | (3983 ± 10) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) |
(173 ± 12)e6 Lj (52,9 ± 3,7) Mpc [1] |
| Durchmesser | 20.000 Lj |
| Geschichte | |
| Entdeckung | DeLisle Stewart |
| Entdeckungsdatum | 21. September 1900 |
| Katalogbezeichnungen | |
| IC 4958 • PGC 64370 • ESO 046-007 • 2MASX J20153537-7242402 • HIPASS J2016-72 | |
IC 4958 ist eine spiralförmige Zwerggalaxie vom Hubble-Typ Sc im Sternbild Pfau am Südsternhimmel. Sie ist schätzungsweise 173 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 20.000 Lj.
Das Objekt wurde am 21. September 1900 von DeLisle Stewart entdeckt.[3]
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