Astronomy:Arp-Madore 1
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Short description: Globular cluster in the constellation Horologium
| Arp-Madore 1 | |
|---|---|
 Globular cluster Arp-Madore 1 | |
| Observation data (J2000.0 epoch) | |
| Constellation | Horologium |
| Right ascension | 03h 55m 02.70s[1] |
| Declination | −49° 36′ 52.0″[1] |
| Distance | 398,000 (122,000) |
| Apparent dimensions (V) | 1.288 by 0.691 ′[1] |
| Physical characteristics | |
| Other designations | E1, AM 0353-094, C 0353-497, C 0354-498, AM 1, ESO 201-10, LEDA 14098, SGC 035336-4945.6[1] |
Arp-Madore 1 is a globular cluster visible in the constellation Horologium, located 123.3 kiloparsecs (402,000 light-years) away from Earth.[2] It is one of the most distant known globular clusters of the Milky Way galaxy's halo;[3][4] its distance gives it interest as a test case for gravitational theories.[5] It is named after Halton Arp and Barry F. Madore, who identified it as a distant globular cluster in 1979, using the UK Schmidt Telescope,[6] after previous researchers at the European Southern Observatory had observed its existence but not its classification.[7]
References
- ↑ 1.0 1.1 1.2 1.3 "NAME E 1". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NAME+E+1.
- ↑ Vasiliev, Eugene (2019). "Proper motions and dynamics of the Milky Way globular cluster system from Gaia DR2". Monthly Notices of the Royal Astronomical Society 484 (2): 2832–2850. doi:10.1093/mnras/stz171. Bibcode: 2019MNRAS.484.2832V.
- ↑ Aaronson, M.; Schommer, R. A.; Olszewski, E. W. (1984), "AM-1 : a very distant globular cluster", Astrophys. J. 276: 221–228, doi:10.1086/161605, Bibcode: 1984ApJ...276..221A.
- ↑ Dotter, A.; Sarjedini, A.; Yang, S.-C. (2008), "Globular clusters in the outer galactic halo: AM-1 and Palomar 14", Astron. J. 136 (4): 1407–1414, doi:10.1088/0004-6256/136/4/1407, Bibcode: 2008AJ....136.1407D.
- ↑ Hilker, M. (2006), "Probable member stars of the gravitational theory-testing globular clusters AM 1, Pal 3 and Pal 14", Astron. Astrophys. 448 (1): 171–180, doi:10.1051/0004-6361:20054327, Bibcode: 2006A&A...448..171H.
- ↑ Madore, B. F.; Arp, H. C. (1979), "Three new faint star clusters", Astrophys. J. 227: L103–L104, doi:10.1086/182876, Bibcode: 1979ApJ...227L.103M.
- ↑ Holmberg, E. B.; Lauberts, A.; Schuster, H. E.; West, R. M. (1975), "The ESO/Uppsala survey of the ESO (B) atlas of the southern sky. III", Astron. Astrophys., Suppl.Ser. 22: 327–402, Bibcode: 1975A&AS...22..327H.
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