NGC 7245
| Offener Sternhaufen NGC 7245 | |
|---|---|
| AladinLite | |
| Sternbild | Eidechse |
| Position Äquinoktium: J2000.0 | |
| Rektaszension | 22h 15m 11,0s [1] |
| Deklination | +54° 20′ 36″ [1] |
| Erscheinungsbild | |
| Klassifikation | II1p [2] |
| Helligkeit (visuell) | 9,2 mag [2] |
| Rötung (Farbexzess E(B-V)) | 0,43 ± 0,03 |
| Physikalische Daten | |
| Entfernung | 11000 Lj (3390 pc) |
| Alter | (290-) 320 (-360) Mio Jahre |
| Geschichte | |
| Entdeckt von | William Herschel |
| Entdeckungszeit | 14. Oktober 1787 |
| Katalogbezeichnungen | |
| NGC 7245 • C 2213+540 • OCl 225 • Mel 241 • Cr 449 • GC 4774 • H VI 29 • h 2157 • | |
NGC 7245 ist ein offener Sternhaufen vom Trumpler-Typ II1p im Sternbild Eidechse am Nordsternhimmel. Er hat einen Winkeldurchmesser von 7 Bogenminuten, eine Helligkeit von +9,20 mag, ist zwischen 290 und 360 Millionen Jahren alt und von unserem Sonnensystem 11.000 Lichtjahre entfernt.[3]
Entdeckt wurde das Objekt am 14. Oktober 1787 von William Herschel.[4]
Einzelnachweise
- ↑ NASA/IPAC EXTRAGALACTIC DATABASE
- ↑ a b SEDS
- ↑ E. V. Glushkova, M. V. Zabolotskikh, S. E. Koposov, O. I. Spiridonova, V. V. Vlasyuk: Photometry of the poorly studied galactic open star clusters King 13, King 18, King 19, King 20, NGC 136, and NGC 7245. In: Astronomy Letters. Band 36, Nr. 1, Januar 2010, ISSN 1063-7737, S. 14–26, doi:10.1134/S1063773710010032 (springer.com [abgerufen am 1. Oktober 2021]).
- ↑ Seligman
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