AM-1
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Globular cluster AM-1 |
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Pendulum clock |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 03 h 55 m 02.70 s |
| declination | -49 ° 36 ′ 52.0 ″ |
| Appearance | |
| Angular expansion | 1.23 ' |
| Physical data | |
| Radial velocity | 116 ± 20 km / s |
| distance | 120 kpc |
| Age | 11.1 billion years |
| Metallicity [Fe / H] | −1.85 ± 0.15 |
| history | |
| Catalog names | |
| C 0353-497, C 0354-498 • ESO 201-SC10 • | |
AM-1 is a globular cluster of the outer halo in the constellation Horologium, about 400,000 light years away . The globular cluster was first cataloged by Holmberg in 1975 as part of the ESO / Uppsala Survey ; Shortly afterwards, Lauberts reported on the extraordinary distance. Its name in use today goes back to a later study by Arp and Madore.
swell
- ↑ a b c simbad
- ^ A b Aaron Dotter, Ata Sarajedini, Soung-Chul Yang: Globular Clusters in the Outer Galactic Halo: AM-1 and Palomar 14 , arxiv : 0807.1103 .
- Jump up ↑ Barry F. Madore, Wendy L. Freedman: Photographic, Near-Infrared, and CCD Photometry of the Distant Globular Cluster AM-1 . In: Astrophysical Journal . tape 340 , May 1989, pp. 812-822 , doi : 10.1086 / 167438 , bibcode : 1989ApJ ... 340..812M .
- ↑ Holmberg, EB, Lauberts, A., Schuster, H.-E., West, RM: The ESO / Uppsala survey of the ESO / B / Atlas of the southern sky. III , bibcode : 1975A & AS ... 22..327H
- ↑ Lauberts, A .: Three distant stellar clusters found on ESO blue survey plates. , bibcode : 1976A & A .... 52..309L
- ↑ Madore, BF; Arp, HC: Three new faint star clusters , bibcode : 1979ApJ ... 227L.103M