HD 179079
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 11m 09.8287s[1] |
| Declination | −02° 38′ 18.1871″[1] |
| Apparent magnitude (V) | 7.96[2] |
| Characteristics | |
| Spectral type | G5IV[3] |
| Apparent magnitude (B) | 8.66[2] |
| Apparent magnitude (J) | 6.734[2] |
| Apparent magnitude (H) | 6.402[2] |
| Apparent magnitude (K) | 6.311[2] |
| B−V color index | 0.70[2] |
| Astrometry | |
| Proper motion (μ) | RA: −134.422±0.125[1] mas/yr Dec.: −89.424±0.104[1] mas/yr |
| Parallax (π) | 14.3167 ± 0.0809 mas[1] |
| Distance | 228 ± 1 ly (69.8 ± 0.4 pc) |
| Absolute magnitude (MV) | 3.87[4] |
| Details | |
| Mass | 1.087 ± 0.1[3] M☉ |
| Radius | 1.48[3] R☉ |
| Metallicity [Fe/H] | 0.29 ± 0.04[3] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 179079 is a G-type subgiant star in the constellation of Aquila.[3] It has an apparent visual magnitude of approximately 7.96.[2] It is larger than our Sun as it has a radius of approximately 1.48 solar radii.[3] An exoplanet, HD 179079 b, was announced in August 2009 to be orbiting this star. The planet was detected by the radial velocity method, using the HIRES spectrometer at Keck Observatory.[5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥0.076±0.012 MJ | 0.1214+0.0064 −0.0071 |
14.4808+0.01 −0.0035 |
0.049±0.087 | — | — |
See also
References
- ^ 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. Gaia DR2 record for this source at VizieR.
- ^ a b c d e f g h HIP 94256 -- Star, database entry, SIMBAD. Accessed on line September 2, 2009.
- ^ a b c d e f Star : HD 179079, entry, Extrasolar Planets Encyclopaedia. Accessed on line September 2, 2009.
- ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
- ^ Valenti, Jeff A.; et al. (2009). "Two Exoplanets Discovered at Keck Observatory". The Astrophysical Journal. 702 (2): 989–997. arXiv:0908.1612. Bibcode:2009ApJ...702..989V. doi:10.1088/0004-637X/702/2/989.
- ^ Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5.
{{cite journal}}: CS1 maint: unflagged free DOI (link) - ^ Hill, Michelle L.; Mocnik, Teo; Kane, Stephen R.; Henry, Gregory W.; Pepper, Joshua; Hinkel, Natalie R.; Dalba, Paul A.; Fulton, Benjamin J.; Stassun, Keivan G.; Rosenthal, Lee J.; Howard, Andrew W.; Howell, Steve B.; Everett, Mark E.; Boyajian, Tabetha S.; Fischer, Debra A.; Rodriguez, Joseph E.; Beatty, Thomas G.; James, David J. (2020). "Orbital Refinement and Stellar Properties for the HD 9446, HD 43691, and HD 179079 Planetary Systems". arXiv:2003.02385 [astro-ph.EP].
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