HD 17092
HD 17092 is an 8th magnitude star in the constellation of Perseus. It is an orange giant (spectral type K0III).
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Perseus |
| Right ascension | 02h 46m 22.1179s[1] |
| Declination | +49° 39′ 11.0949″[1] |
| Apparent magnitude (V) | 7.73[2] |
| Characteristics | |
| Spectral type | K0III[3] |
| B−V color index | 1.26 |
| Astrometry | |
| Proper motion (μ) | RA: 40.328±0.100[1] mas/yr Dec.: −10.312±0.099[1] mas/yr |
| Parallax (π) | 4.3499 ± 0.0516[1] mas |
| Distance | 750 ± 9 ly (230 ± 3 pc) |
| Absolute magnitude (MV) | 2.54 |
| Details | |
| Mass | 2.3 ± 0.3 M☉ |
| Temperature | 4650 ± 35 K |
| Metallicity | 0.18 ± 0.08 |
| Other designations | |
SAO 38313, BD+49° 767 | |
| Database references | |
| SIMBAD | data |
The star is visible only with binoculars or better equipment.
Planetary system
On 6 May 2007, a planet HD 17092 b was discovered with the Hobby-Eberly Telescope by Niedzielski who used the wobble method. This planet is a massive gas giant and orbits at 1.29 astronomical units from the star with a period of about 360 days.[4]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >4.6 ± 0.3 MJ | 1.29 ± 0.05 | 359.9 ± 2.4 | 0.166 ± 0.052 | — | — |
References
- Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- Cannon, A. E.; Pickering, E. C. (1924). "Henry Draper (HD) catalog and HD extension". Annals of the Astronomical Observatory of Harvard College. Bibcode:1924hdhc.bookQ....C.
- The Tycho-1 Catalog
- Niedzielski, A.; et al. (2007). "A Planetary‐Mass Companion to the K0 Giant HD 17092". The Astrophysical Journal. 669 (2): 1354–1358. arXiv:0705.0935. Bibcode:2007ApJ...669.1354N. doi:10.1086/521784.
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