BD−17 63

BD−17 63 is a low-mass K type star in the southern constellation Cetus. It is a 9th magnitude star at a distance of 113 light years from Earth.

BD-17 63/ Felixvarela
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 00h 28m 34.3061s[1]
Declination −16° 13′ 34.8414″[1]
Apparent magnitude (V) 9.63
Characteristics
Spectral type K4V(k)[2]
Apparent magnitude (B) ~10.77[3]
Apparent magnitude (J) 7.574±0.019[3]
Apparent magnitude (H) 7.027±0.033[3]
Apparent magnitude (K) 6.914±0.024[3]
Astrometry
Radial velocity (Rv)2.93±0.15[4] km/s
Proper motion (μ) RA: −354.939±0.022[4] mas/yr
Dec.: −227.995±0.015[4] mas/yr
Parallax (π)28.9723 ± 0.0212 mas[4]
Distance112.58 ± 0.08 ly
(34.52 ± 0.03 pc)
Absolute magnitude (MV)6.87
Details
Mass0.72±0.01[5] M☉
Radius0.7±0.01[5] R☉
Luminosity0.212±0.001[5] L☉
Surface gravity (log g)4.6±0.01[5] cgs
Temperature4,692±9[5] K
Metallicity [Fe/H]−0.03±0.06 dex
Age10.5±2.6[5] Gyr
Other designations
Felixvarela, 2MASS J00283433-1613343, SAO 147293, HIP 2247, PPM 208851
Database references
SIMBADdata
Exoplanet Archivedata
Extrasolar Planets
Encyclopaedia		data

The star BD-17 63 is named Felixvarela. The name was selected in the NameExoWorlds campaign by Cuba, during the 100th anniversary of the IAU. Felix Varela (1788–1853) was the first to teach science in Cuba.[6][7]

Planetary system

In October 2008 an extrasolar planet, BD−17 63 b, was reported to be orbiting this star. This object was detected using the radial velocity method by search programs conducted using the HARPS spectrograph.[8] An astrometric measurement of the planet's inclination and true mass was published in 2022 as part of Gaia DR3.[9]

The BD−17 63 planetary system[8][9]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b / Finlay 4.3±0.5 MJ 1.34 ± 0.02 655.6 ± 0.6 0.54 ± 0.005 80±6° —

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. Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (July 2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample". The Astronomical Journal. 132 (1): 161–170. arXiv:astro-ph/0603770. Bibcode:2006AJ....132..161G. doi:10.1086/504637.
  3. "SIMBAD query result: G 158-84 -- High proper-motion Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-06-11.
  4. 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.
  5. Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951. S2CID 54555839.
  6. "Approved names". NameExoworlds. Retrieved 2020-01-02.
  7. "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
  8. Moutou, C.; et al. (2009). "The HARPS search for southern extra-solar planets XVII. Six long-period giant planets around BD -17 0063, HD 20868, HD 73267, HD 131664, HD 145377, HD 153950". Astronomy and Astrophysics. 496 (2): 513–519. arXiv:0810.4662. Bibcode:2009A&A...496..513M. doi:10.1051/0004-6361:200810941. S2CID 116707055.
  9. Gaia Collaboration; et al. (2022). "Gaia Data Release 3: Stellar multiplicity, a teaser for the hidden treasure". arXiv:2206.05595 [astro-ph.SR].
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.