6 Lyncis

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6 Lyncis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lynx
Right ascension 06h 30m 47.11s[1]
Declination +58° 09′ 45.5″[1]
Apparent magnitude (V) 5.88
Characteristics
Spectral type K0IV
B−V color index 0.94
Variable type None
Astrometry
Radial velocity (Rv) +36 km/s
Proper motion (μ) RA: -30.14 ± 0.56[1] mas/yr
Dec.: -338.67 ± 0.41[1] mas/yr
Parallax (π) 17.92 ± 0.47[1] mas
Distance 182 ± 5 ly
(56 ± 1 pc)
Absolute magnitude (MV) 2.10
Details
Mass 1.7+0.3
−0.2
 M
Radius 5.2+0.4
−0.3
 R
Luminosity 15 L
Surface gravity (log g) 3.5 cgs
Temperature 4978 ± 18 K
Metallicity –0.13 ± 0.02
Other designations
BD+58°932, GC 8416, HD 45410, HIP 31039, HR 2331, SAO 25771
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data

6 Lyncis (abbreviated 6 Lyn) is a K-type subgiant star approximately 182 light years away in the constellation of Lynx. The star has mass 1.7 times, radius 5.2 times, and luminosity 15 times that of our Sun. It has apparent magnitude 5.88 and absolute magnitude 2.10.

Planetary system[edit]

In July 2008, the planet 6 Lyncis b was announced by Sato, along with 14 Andromedae b and 81 Ceti b. The planet was found to have minimum mass of 2.4 Jupiter masses and period of 899 days.[2]

The 6 Lyncis planetary system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥2.4 MJ 2.2 899 ± 19 0.134 ± 0.052

See also[edit]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b Sato, Bun'ei et al. (2008). "Planetary Companions to Evolved Intermediate-Mass Stars: 14 Andromedae, 81 Ceti, 6 Lyncis, and HD167042". Publications of the Astronomical Society of Japan 60 (6): 1317–1326. arXiv:0807.0268. Bibcode:2008PASJ...60.1317S. doi:10.1093/pasj/60.6.1317. 

External links[edit]

Coordinates: Sky map 06h 30m 47.1081s, +58° 09′ 45.480″