41 Lyncis
Star in the constellation Ursa Major / From Wikipedia, the free encyclopedia
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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.
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
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] |
Distance | 280 ± 3 ly (85.9 ± 0.8 pc) |
Absolute magnitude (MV) | 0.675[5] |
Details | |
Mass | 2.07+0.14 −0.16[6] M☉ |
Radius | 11[7] R☉ |
Luminosity | 55[7] L☉ |
Surface gravity (log g) | 2.30[5] cgs |
Temperature | 4,789[5] K |
Metallicity [Fe/H] | –0.23[5] dex |
Rotational velocity (v sin i) | [7] km/s |
Age | 4.07±2.24[5] Gyr |
Other designations | |
Database references | |
SIMBAD | The star |
planet b |
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