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词条 NGC 5897
释义

  1. References

  2. External links

{{Infobox globular cluster
| name = NGC 5897
| class = XI[1]
| image =
| caption = The globular cluster NGC 5897
| credit = HST
| epoch = J2000
| constellation = Libra
| ra = {{RA|15|17|24.40}}[1]
| dec = {{DEC|-21|00|36.4}}[1]
| dist_ly = 24.1 kly
(7.4 kpc)[1]
| appmag_v = 8.52[1]
| size_v =
| mass_msol =
| radius_arcminsec = 6.3' x 6.3'[2]
| v_hb =
| metal_fe = -1.9[7]
| metal_z =
| age =
| notes =
| names = GCl 33, C 1514-208[1]
}}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.[2]

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. ^{{cite simbad|title=NGC 5897|accessdate=8 January 2017}}
2. ^{{cite web|title=NGC 5897|url=http://spider.seds.org/spider/MWGC/n5897.html|accessdate=7 January 2016}}
3. ^{{cite web|title=A Galactic Globular Clusters Database: NGC 5897|url=http://gclusters.altervista.org/cluster_4.php?ggc=NGC+5897|accessdate=8 January 2017}}

External links

  • NGC 5897
{{star-cluster-stub}}

3 : Globular clusters|Libra (constellation)|NGC objects

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