词条 | NGC 5897 |
释义 |
| 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. References1. ^1 2 3 4 {{cite simbad|title=NGC 5897|accessdate=8 January 2017}} 2. ^1 2 {{cite web|title=NGC 5897|url=http://spider.seds.org/spider/MWGC/n5897.html|accessdate=7 January 2016}} 3. ^1 {{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
3 : Globular clusters|Libra (constellation)|NGC objects |
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