Astronomy:HD 84117
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Short description: Star in the constellation Hydra
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Hydra |
| Right ascension | 09h 42m 14.4168s[1] |
| Declination | −23° 54′ 56.048″[1] |
| Apparent magnitude (V) | 4.94[1] |
| Characteristics | |
| Spectral type | F8V[1] |
| U−B color index | 0.00[2] |
| B−V color index | +0.53[2] |
| R−I color index | +0.28[2] |
| Astrometry | |
| Radial velocity (Rv) | 33.8 ± 0.9[1] km/s |
| Proper motion (μ) | RA: −399.21[1] mas/yr Dec.: 263.17[1] mas/yr |
| Parallax (π) | 67.19 ± 0.73[1] mas |
| Distance | 48.5 ± 0.5 ly (14.9 ± 0.2 pc) |
| Absolute magnitude (MV) | 4.05[3] |
| Details | |
| Mass | 1.09 (1.04 to 1.16)[4] M☉ |
| Radius | 1.1[5] R☉ |
| Temperature | 6100[4] K |
| Metallicity [Fe/H] | −0.12[4] dex |
| Rotational velocity (v sin i) | 6[4] km/s |
| Age | 3.1 (2.2 to 4.4)[4] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 84117 is a F-type main sequence star in the constellation of Hydra.[1] It has an apparent visual magnitude of approximately 4.94.[1]
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "HD 84117". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+84117.
- ↑ 2.0 2.1 2.2 HR 3862, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line January 20, 2011.
- ↑ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
- ↑ 4.0 4.1 4.2 4.3 4.4 HD 84117, database entry, The Geneva-Copenhagen Survey of Solar neighbourhood, J. Holmberg et al., 2007, CDS ID V/117A. Accessed on line January 20, 2011.
- ↑ HD 84117, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line January 20, 2011.
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