41 Lyncis

41 Lyncis / Intercrus
Diagram showing star positions and boundaries of the Lynx constellation and its surroundings
Diagram showing star positions and boundaries of the Lynx constellation and its surroundings

Location of 41 Lyncis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Ursa Major
Pronunciation /ˈɪntərkrʌs/,[1]
Right ascension 09h 28m 39.9889s[2]
Declination +45° 36′ 05.3353″[2]
Apparent magnitude (V) 5.413[3]
Characteristics
Spectral type K0 III[4]
U−B color index 0.74
B−V color index 0.983[5]
Astrometry
Radial velocity (Rv)+38.44[5] km/s
Proper motion (μ) RA: −7.297±0.140[2] mas/yr
Dec.: −129.582±0.130[2] mas/yr
Parallax (π)11.6388 ± 0.1063 mas[2]
Distance280 ± 3 ly
(85.9 ± 0.8 pc)
Absolute magnitude (MV)0.675[5]
Details
Mass2.07+0.14
−0.16[6] M☉
Radius11[7] R☉
Luminosity55[7] L☉
Surface gravity (log g)2.30[5] cgs
Temperature4,789[5] K
Metallicity [Fe/H]–0.23[5] dex
Rotational velocity (v sin i)[7] km/s
Age4.07±2.24[5] Gyr
Other designations
Intercrus, BD+46°1509, CCDM J09287+4536, GC 13051, HD 81688, HIP 46471, HR 3743, SAO 42876[3]
Database references
SIMBADThe star
planet b

41 Lyncis (abbreviated 41 Lyn), also designated HD 81688 and named Intercrus /ˈɪntərkrʌs/, is a fifth-magnitude star located in the northern constellation of Ursa Major. An extrasolar planet (designated 41 Lyncis b or HD 81688 b, later named Arkas) is thought to be orbiting the star.

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