HD 35759 is a star with an orbiting exoplanet located in the circumpolar constellation Camelopardalis. With an apparent magnitude of 7.74, it's impossible to see with the unaided eye, but can be seen with binoculars. The distance to this system is 232 light years based on parallax measurements,[1] and it is drifting closer with a heliocentric radial velocity of −12.6 km/s.[5]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 31m 33.349s[1] |
| Declination | +64° 19′ 07.59″[1] |
| Apparent magnitude (V) | 7.74±0.01[2] |
| Characteristics | |
| Spectral type | G0[3] or F9/G0V[citation needed] |
| B−V color index | 0.602±0.015[4] |
| Astrometry | |
| Radial velocity (Rv) | −12.620±0.0025[5] km/s |
| Proper motion (μ) | RA: −29.318 mas/yr[1] Dec.: −92.726 mas/yr[1] |
| Parallax (π) | 14.0772 ± 0.0217 mas[1] |
| Distance | 231.7 ± 0.4 ly (71.0 ± 0.1 pc) |
| Absolute magnitude (MV) | 3.45[4] |
| Details | |
| Mass | 1.15±0.08[6] M☉ |
| Radius | 1.76+0.06 −0.04[5] R☉ |
| Luminosity | 3.445+0.015 −-0.014[5] L☉ |
| Surface gravity (log g) | 4.0159+0.0740 −0.0818[7] cgs |
| Temperature | 5,927+67 −93[5] K |
| Metallicity [Fe/H] | 0.04±0.02[8] dex |
| Rotational velocity (v sin i) | 3[9] km/s |
| Age | 4.2[10] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
This is a G-type star with 15% more mass than the Sun, but has 1.76 times the radius. It radiates at about 3 solar luminosities, and has an effective temperature of 5,927 K, which gives it a yellow hue. HD 35759 is slightly enriched in metals, with having 9.6% more iron abundance than the Sun. Like many older G-type stars, HD 35759 rotates rather slowly, with a projected rotational velocity of 3 km/s.
Planetary System
editIn 2016, a super-jovian exoplanet was discovered orbiting the star on an eccentric orbit. Since the planet was discovered using doppler spectroscopy, its radius and true mass is unknown.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥ 3.76±0.17 MJ | 0.389±0.09 | 82.467±0.019 | 0.389±0.006 | — | — |
References
edit- ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ Høg, E.; et al. (2000-03-01). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
- ^ Cannon, A. J.; Pickering, E. C. (1993-10-01). "VizieR Online Data Catalog: Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)". VizieR Online Data Catalog. 3135. Bibcode:1993yCat.3135....0C.
- ^ a b Anderson, E.; Francis, Ch. (2012-05-01). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
- ^ a b c d e 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. 287622247440034688 Gaia DR2 record for this source at VizieR.
- ^ Winter, Andrew J.; et al. (2020-10-01). "Stellar clustering shapes the architecture of planetary systems". Nature. 586 (7830): 528–532. arXiv:2010.10531. Bibcode:2020Natur.586..528W. doi:10.1038/s41586-020-2800-0. ISSN 0028-0836. PMC 7116760. PMID 33087913.
- ^ Stassun, Keivan G.; et al. (2019-10-01). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. hdl:1721.1/124721. ISSN 0004-6256. S2CID 166227927.
- ^ a b Hébrard, Guillaume; et al. (2016-04-01). "The SOPHIE search for northern extrasolar planets. X. Detection and characterization of giant planets by the dozen". Astronomy and Astrophysics. 588: A145. arXiv:1602.04622. Bibcode:2016A&A...588A.145H. doi:10.1051/0004-6361/201527585. ISSN 0004-6361. S2CID 55138055.
- ^ Nordström, B.; et al. (2004-05-01). "The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ~14 000 F and G dwarfs". Astronomy and Astrophysics. 418: 989–1019. arXiv:astro-ph/0405198. Bibcode:2004A&A...418..989N. doi:10.1051/0004-6361:20035959. ISSN 0004-6361. S2CID 11027621.
- ^ Casagrande, L.; et al. (2011-06-01). "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey". Astronomy and Astrophysics. 530: A138. arXiv:1103.4651. Bibcode:2011A&A...530A.138C. doi:10.1051/0004-6361/201016276. ISSN 0004-6361. S2CID 56118016.
- ^ "HD 35759". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2023-12-15.