Astronomy:PGC 910901
From HandWiki
| PGC 910901 | |
|---|---|
 PGC 910901 seen by Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Class | III[1] |
| Constellation | Pegasus |
| Right ascension | 00h 01m 29.5s[2] |
| Declination | −15° 27′ 51″[2] |
| Distance | 3.04 Mly (0.93 Mpc)[3] |
| Physical characteristics | |
| VHB | 15.83 |
| Metallicity | [math]\displaystyle{ \begin{smallmatrix}\left[\ce{Fe}/\ce{H}\right]\end{smallmatrix} }[/math] = –1.5[4] dex |
| Estimated age | ≈15 Gyr[5] |
| Other designations | [6] |
PGC 910901 is a III class globular cluster in constellation Cetus, about 3.04 milion light-years away. It is in the orbit of the galaxy Wolf-Lundmark-Melotte at the edge of the Local Group.
Characteristics
Hodge et al. (1999) determined having an absolute magnitude of −8.8 and a metallicity of –1.5, with an age of ~15 billion years. This cluster has a luminosity that is slightly over the average for all globulars. The seeming lack of faint low-mass globular clusters cannot be explained by the weak tidal forces of the WLM system.[7]
References
- ↑ Cite error: Invalid
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<ref>tag; no text was provided for refs namedsimbad - ↑ van den Bergh, Sidney (April 2000). "Updated Information on the Local Group". The Publications of the Astronomical Society of the Pacific 112 (770): 529–536. doi:10.1086/316548. Bibcode: 2000PASP..112..529V
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