HD 179079

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]

The HD 179079 planetary system[6][7]
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 — —
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[1] mas
Distance228 ± 1 ly
(69.8 ± 0.4 pc)
Absolute magnitude (MV)3.87[4]
Details
Mass1.087 ± 0.1[3] M☉
Radius1.48[3] R☉
Metallicity [Fe/H]0.29 ± 0.04[3] dex
Other designations
BD−02 4881, HIP 94256, PPM 202620, SAO 143111.[2]
Database references
SIMBADdata
Exoplanet Archivedata
Extrasolar Planets
Encyclopaedia		data

See also

References
  1. 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.
  2. HIP 94256 -- Star, database entry, SIMBAD. Accessed on line September 2, 2009.
  3. Star : HD 179079, entry, Extrasolar Planets Encyclopaedia. Accessed on line September 2, 2009.
  4. 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.
  5. 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.
  6. 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.
  7. 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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