Astronomy:HD 76151
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Short description: Star in the constellation Hydra
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Hydra |
| Right ascension | 08h 54m 17.9475s[1] |
| Declination | −05° 26′ 04.054″[1] |
| Apparent magnitude (V) | 6.00[1] |
| Characteristics | |
| Spectral type | G3V[1] |
| U−B color index | +0.22[2] |
| B−V color index | +0.67[2] |
| R−I color index | +0.21[2] |
| Astrometry | |
| Radial velocity (Rv) | 28 ± 5[1] km/s |
| Proper motion (μ) | RA: −413.13[1] mas/yr Dec.: 30.44[1] mas/yr |
| Parallax (π) | 58.50 ± 0.88[1] mas |
| Distance | 55.8 ± 0.8 ly (17.1 ± 0.3 pc) |
| Absolute magnitude (MV) | 4.81[3] |
| Details | |
| Mass | 0.92 (0.88 to 1.01)[4] M☉ |
| Radius | 0.88[5] R☉ |
| Temperature | 5,700[4] K |
| Metallicity [Fe/H] | −0.04[4] dex |
| Rotation | 15 days[6] |
| Rotational velocity (v sin i) | 3[4] km/s |
| Age | 6.3 (2.1 to 10.6)[4] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 76151 is a high proper motion, G-type main sequence star (G3/ 5 V or yellow star) in the constellation of Hydra 56.70 light years from earth.[1] It has an apparent visual magnitude of approximately 6.00.[1][7] An infrared excess has been detected around this star, most likely indicating the presence of a circumstellar disk at a radius of 7.9 AU. The temperature of this dust is 99 K.[8]
HD 76151 has an estimated age of 7.10 billion years old with some estimates of HD 76151 being as young as 3.10 to 11.00 according to hipparcos. The star is around 5000-6000 kelvins. The radius of HD 76151 is 716,586.05 kilometers.[9]
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "HD 76151". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+76151.
- ↑ 2.0 2.1 2.2 HR 3538, 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 76151, 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 76151, 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.
- ↑ Maldonado, J. et al. (October 2010), "A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups", Astronomy and Astrophysics 521: A12, doi:10.1051/0004-6361/201014948, Bibcode: 2010A&A...521A..12M
- ↑ "HD 76151". http://simbad.u-strasbg.fr/simbad/sim-basic.
- ↑ Eiroa, C. et al. (July 2013). "DUst around NEarby Stars. The survey observational results". Astronomy & Astrophysics 555: A11. doi:10.1051/0004-6361/201321050. Bibcode: 2013A&A...555A..11E.
- ↑ Guide, Universe (25 January 2015). "HD 76151 Star Facts (Type, Distance, Magnitude, Age, Colour, Luminosity, Location & more)". https://www.universeguide.com/star/43726/hd76151.
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