HD 16175
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 02h 37m 01.911s[1] |
| Declination | +42° 03′ 45.48″[1] |
| Apparent magnitude (V) | 7.28 |
| Characteristics | |
| Spectral type | F8 IV[2] |
| Astrometry | |
| Proper motion (μ) | RA: -38.90 ± 0.63[1] mas/yr Dec.: -40.37 ± 0.53[1] mas/yr |
| Parallax (π) | 17.28 ± 0.67[1] mas |
| Distance | 189 ± 7 ly (58 ± 2 pc) |
| Details | |
| Mass | 1.34 ± 0.01[3] M☉ |
| Radius | 1.66 ± 0.04[3] R☉ |
| Luminosity | 3.3 ± 0.01[3] L☉ |
| Surface gravity (log g) | 4.12 ± 0.03[3] cgs |
| Temperature | 6048 ± 35[3] K |
| Age | 3.2 ± 0.2[3] Gyr |
| Other designations | |
HD 16175 is a 7th magnitude G-type star with temperature about 6000 K located approximately 189 light-years away[1] in the Andromeda constellation. This star is only visible through binoculars or better equipment. The absolute magnitude is 3.40, so it is 3.73 times more luminous than our local star at visible wavelength.
Planetary system
The extrasolar planet HD 16175 b was published in the June 2009 issue of the Publications of the Astronomical Society of the Pacific.[4]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >4.4 ± 0.34 MJ | 2.10 ± 0.08 | 990 ± 20 | 0.59 ± 0.11 | — | — |
See also
References
- 1 2 3 4 5 6 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752
. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry - ↑ Van Belle, Gerard T.; von Braun, Kaspar (2009). "Directly Determined Linear Radii and Effective Temperatures of Exoplanet Host Stars". The Astrophysical Journal. 694 (2): 1085. arXiv:0901.1206. Bibcode:2009ApJ...694.1085V. doi:10.1088/0004-637X/694/2/1085.
- 1 2 3 4 5 6 Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951.
- 1 2 Peek, John Asher; et al. (2009). "Old, rich, and eccentric: two jovian planets orbiting evolved metal-rich stars". Publications of the Astronomical Society of the Pacific. 121 (880): 613–620. arXiv:0904.2786. Bibcode:2009PASP..121..613P. doi:10.1086/599862. JSTOR 599862.
External links
- "Notes for star HD 16175". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-24.
Coordinates: 
02h 37m 01.9110s, +42° 03′ 45.479″
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