IC 4642
IC 4642 ist ein Planetarischer Nebel im Sternbild Altar. Entdeckt wurde das Objekt 1901 von der amerikanischen Astronomin Williamina Fleming.[3]
| Planetarischer Nebel IC 4642 | |
|---|---|
| AladinLite | |
| Sternbild | Altar |
| Position Äquinoktium: J2000.0 | |
| Rektaszension | 17h 11m 45,2s [1] |
| Deklination (Astronomie) | −55° 23′ 56″ [1] |
| Erscheinungsbild | |
| Scheinbare Helligkeit (B-Band) | 13,4 mag |
| Winkelausdehnung | 0,4 [2] |
| Zentralstern | |
| Bezeichnung | HD 154952 |
| Physikalische Daten | |
| Rotverschiebung | 0.000147 |
| Radialgeschwindigkeit | 44 km/s |
| Entfernung | 13.439 ± 4.400 Lj |
| Geschichte | |
| Entdeckung | Williamina Fleming |
| Datum der Entdeckung | 1901 |
| Katalogbezeichnungen | |
| IC 4642 • PK 334-09 01 • ESO 180-PN004 • Hen 2-201 | |
IC 4642 ist ein Planetarischer Nebel im Sternbild Altar. Entdeckt wurde das Objekt 1901 von der amerikanischen Astronomin Williamina Fleming.[3]
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