NGC 5897
| NGC 5897 | |
|---|---|
 The globular cluster NGC 5897 Credit: HST | |
| Observation data (J2000 epoch) | |
| Class | XI[1] |
| Constellation | Libra |
| Right ascension | 15h 17m 24.40s[2] |
| Declination | −21° 00′ 36.4″[2] |
| Distance |
24.1 kly (7.4 kpc)[2] |
| Apparent magnitude (V) | 8.52[2] |
| Physical characteristics | |
| Radius | 6.3' x 6.3'[1] |
| Metallicity | = -1.9[3] dex |
| Other designations | GCl 33, C 1514-208[2] |
![{\displaystyle {\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}}](../I/m/4c0821bd80891e071c08e7c7ee8e022baedf522c.svg)
NGC 5897 is a globular cluster in the constellation Libra. This satellite of the Milky Way, which is quite remote (located about 24,000 light years away), has a diameter of over 170 light years. With its Shapley–Sawyer Concentration Class of XI, it has very low star density even in its center.[1]
The stars of the cluster have only one per cent of the sun's metallicity,[3] which means that they were formed in a time before the galaxy formed a disk and spiral arms.
NGC 5897 has a diameter of 12.6 arcminutes and an apparent magnitude of 8.5.
References
- 1 2 3 "NGC 5897". Retrieved 7 January 2016.
- 1 2 3 4 5 "NGC 5897". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 January 2017.
- 1 2 "A Galactic Globular Clusters Database: NGC 5897". Retrieved 8 January 2017.
External links
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