6 Lyncis

6 Lyncis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lynx
Right ascension 06h 30m 47.1071s[1]
Declination +58° 09′ 45.481″[1]
Apparent magnitude (V) 5.86[2]
Characteristics
Spectral type K0.5 IIIb Fe0.5[3]
B−V color index 0.934±0.006[2]
Astrometry
Radial velocity (Rv)+39.57±0.20[2] km/s
Proper motion (μ) RA: −30.421±0.098[1] mas/yr
Dec.: −338.678±0.071[1] mas/yr
Parallax (π)18.2668 ± 0.0908 mas[1]
Distance178.6 ± 0.9 ly
(54.7 ± 0.3 pc)
Absolute magnitude (MV)2.13[2]
Details[4]
Mass1.46±0.02 M☉
Radius5.2±0.1 R☉
Luminosity14.9±0.1 L☉
Surface gravity (log g)3.17±0.03 cgs
Temperature4,994±15 K
Metallicity [Fe/H]−0.18±0.04[2] dex
Rotational velocity (v sin i)1.8[5] km/s
Age2.8±0.2 Gyr
Other designations
6 Lyn, BD+58°932, GC 8416, HD 45410, HIP 31039, HR 2331, SAO 25771[6]
Database references
SIMBADdata
Exoplanet Archivedata

6 Lyncis is a star in the northern constellation of Lynx,[6] located approximately 179 light years from Earth.[1] It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.86.[2] This object is moving away from the Earth with a heliocentric radial velocity of +40 km/s.[2] It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.341 arc seconds per annum.[7]

This is an aging giant star with a stellar classification of K0.5 IIIb Fe0.5,[3] which indicates it has a mild overabundance of iron in its spectrum. At the age of 2.8 billion years old, it has exhausted the hydrogen at its core, causing it to evolve away from the main sequence. As a consequence, it has expanded to 5.2 times the radius of the Sun although it only has 1.46 times the Sun's mass. The star is radiating 14.9 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,994 K.[4] One sub-stellar companion has been identified.[8]

  1. ^ a b c d e f Cite error: The named reference Gaia DR2 was invoked but never defined (see the help page).
  2. ^ a b c d e f g Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference perkins1989 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Bonfanti2015 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Massarotti2008 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Simbad was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Lepine2005 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Sato2008 was invoked but never defined (see the help page).