HD 196944
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Stern HD 196944 |
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| AladinLite | |||||||||||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Aquarius | ||||||||||||
| Right ascension | 20 h 40 m 46.08 s | ||||||||||||
| declination | −06 ° 47 ′ 50.7 ″ | ||||||||||||
| Apparent brightness | 8.4 mag | ||||||||||||
| Typing | |||||||||||||
| B − V color index | 0.61 | ||||||||||||
| Spectral class | CEMP-s | ||||||||||||
| Astrometry | |||||||||||||
| Radial velocity | −169.8 km / s | ||||||||||||
| parallax | (2.28 ± 0.09) mas | ||||||||||||
| distance | (1430 ± 50) ly 440 pc |
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| Proper movement | |||||||||||||
| Rec. Share: | (+40.92 ± 0.17) mas / a | ||||||||||||
| Dec. portion: | (−27.33 ± 0.13) mas / a | ||||||||||||
| Physical Properties | |||||||||||||
| Effective temperature | (5250 ± 100) K.
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| Metallicity [Fe / H] | −2.45 | ||||||||||||
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Other names and catalog entries |
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HD 196944 is a star about 1400 light years away . It is one of the CEMP stars , which makes it a peculiar star .
Web links
Individual evidence
- ↑ a b c d e f g HD 196944. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed August 26, 2018 .
- ^ A b L. E. Zacs, P. Nissen, W. Schuster: The chemical composition of HD 196944: a carbon and s-process rich, very metal-poor star . In: Astronomy & Astrophysics . 337, 1998, pp. 216-222. bibcode : 1998A & A ... 337..216Z .
- ↑ a b D.Carollo et. al: Carbon-Enhanced Metal-Poor Stars: CEMP-s and CEMP-no Sub-Classes in the Halo System of the Milky Way . In: The Astrophysical Journal . 788, 2014. arxiv : 1401.0574 . bibcode : 1998A & A ... 337..216Z .