HD 149143

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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[1] mas
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

HD 149143, formally named Rosalíadecastro,[3] is a star located in 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]

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[]

References[]

  1. ^ 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.
  2. ^ a b c d e f g 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. ^ a b 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.

Coordinates: Sky map 16h 32m 51.0498s, +02° 05′ 05.395″


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