HD 149143

HD 149143, formally named Rosalíadecastro,[3] is a star located in the Ophiuchus constellation that has spectral type of G0 located at a distance of 240 light-years from us. Its apparent magnitude is 7.9 (a binocular object) and the absolute magnitude is 3.9.[2][4]

HD 149143
(Rosalíadecastro)
Observation data
Epoch J2000      Equinox J2000
Constellation Ophiuchus
Right ascension 16h 32m 51.0508s[1]
Declination +02° 05′ 05.3814″[1]
Apparent magnitude (V) 7.89[2]
Characteristics
Spectral type G0 IV[2]
B−V color index 0.680[2]
Astrometry
Proper motion (μ) RA: −9.328±0.115[1] mas/yr
Dec.: −86.739±0.069[1] mas/yr
Parallax (π)13.6179 ± 0.0666 mas[1]
Distance240 ± 1 ly
(73.4 ± 0.4 pc)
Absolute magnitude (MV)3.87[2]
Details[2]
Mass1.21±0.1 M☉
Radius1.49±0.1 R☉
Surface gravity (log g)4.071±0.07 cgs
Temperature5884±50 K
Metallicity [Fe/H]0.26±0.05 dex
Rotation28 days
Rotational velocity (v sin i)4.0±0.5 km/s
Other designations
Rosalíadecastro, BD+02° 3127, HIP 81022, SAO 121678
Database references
SIMBADdata
Exoplanet Archivedata
Extrasolar Planets
Encyclopaedia		data

Planetary system

The planet that orbits it was discovered by the N2K Consortium, during their search for short-period gas giant planets around metal-rich stars.[2] The planet was independently discovered by the Elodie metallicity-biased search for transiting Hot Jupiters.[4]

The HD 149143 planetary system[5][6]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b (Riosar) ≥1.33±0.15 MJ 0.053±0.0029 4.07182±0.00001 0.0167±0.004 — 1.05 RJ

Naming

On December 17, 2019, as part of the IAU's NameExoWorlds project, the star HD 149143 was given the name Rosalíadecastro in honour of the Spanish poet Rosalía de Castro, who was a significant figure of Galician culture and prominent Spanish writer, whose work often referenced the night and celestial objects.[7]

See also
Wikimedia Commons has media related to Rosalíadecastro.

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. Fischer, Debra A.; et al. (2006). "The N2K Consortium. III. Short-Period Planets Orbiting HD 149143 and HD 109749". The Astrophysical Journal. 637 (2): 1094–1101. Bibcode:2006ApJ...637.1094F. doi:10.1086/498557.
  3. "IAU Catalog of Star Names". Retrieved 5 March 2020.
  4. da Silva, R.; et al. (2006). "Elodie metallicity-biased search for transiting Hot Jupiters I. Two Hot Jupiters orbiting the slightly evolved stars HD118203 and HD149143". Astronomy and Astrophysics. 446 (2): 717–722. arXiv:astro-ph/0510048. Bibcode:2006A&A...446..717D. doi:10.1051/0004-6361:20054116. S2CID 18907493.
  5. 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. S2CID 119243619.
  6. exoplanet.eu HD 149143b
  7. "Approved names". NameExoworlds. Retrieved 2020-01-02.


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