BD−17 63

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BD−17 63
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[2]
Apparent magnitude (B) ~10.77[2]
Apparent magnitude (J) 7.574 ± 0.019[2]
Apparent magnitude (H) 7.027 ± 0.033[2]
Apparent magnitude (K) 6.914 ± 0.024[2]
Astrometry
Proper motion (μ) RA: −355.181±0.161[1] mas/yr
Dec.: −227.737±0.070[1] mas/yr
Parallax (π)28.9903 ± 0.0774[1] mas
Distance112.5 ± 0.3 ly
(34.49 ± 0.09 pc)
Absolute magnitude (MV)6.87
Details
Mass0.72 ± 0.01[3] M
Radius0.7 ± 0.01[3] R
Luminosity0.212 ± 0.001[3] L
Surface gravity (log g)4.6 ± 0.01[3] cgs
Temperature4692 ± 9[3] K
Metallicity [Fe/H]–0.03 ± 0.06 dex
Age10.5 ± 2.6[3] Gyr
Other designations
2MASS J00283433-1613343, SAO 147293, HIP 2247, PPM 208851
Database references
SIMBADdata
Exoplanet Archivedata
Extrasolar Planets
Encyclopaedia
data

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 about 112 light years from Earth.

Planetary system[edit]

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.[4]

The BD−17 63 planetary system[4]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥5.1 ± 0.12 MJ 1.34 ± 0.02 655.6 ± 0.6 0.54 ± 0.005

See also[edit]

References[edit]

  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 "SIMBAD query result: G 158-84 -- High proper-motion Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-06-11.
  3. ^ a b c d e f 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.
  4. ^ a b 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.

External links[edit]

Coordinates: Sky map 00h 28m 34.306s, −16° 13′ 34.84″