6 Lyncis b
Extrasolar planet List of extrasolar planets
Radial velocity changes over time of 6 Lyncis caused by the orbit of 6 Lyncis b.
Parent star

<tr> <td colspan="2">Star</td> <td>6 Lyncis</td></tr><tr> <td colspan="2">Constellation</td> <td>Lynx</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>06h 30m 47.11s[1]</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+58° 09′ 45.5″[1]</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>5.86</td></tr><tr><td colspan="2">Distance</td><td>182 ± 5[1] ly
(56 ± 1[1] pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K0IV</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>2.2 AU
(330 Gm)</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>39 mas</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>1.9 AU
(280 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>2.5 AU
(380 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.134 ± 0.052</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>899 ± 19 d
(2.46 y)</td></tr><tr> <td>Argument of
</td> <td style="text-align: center">(ω)</td> <td>27 ± 27°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>3309 ± 60 JD</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>2.4 MJ</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>337 K</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>July 3, 2008</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Sato et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler Spectroscopy</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr>

Other designations
HD 45410 b

<tr style="background-color: #A0B0FF;"><td align=center colspan=3>Database references</td></tr><tr valign=baseline><td colspan=2>Extrasolar Planets
</td><td>data</td></tr><tr><td colspan=2>SIMBAD</td><td>data</td></tr>

6 Lyncis b (abbreviated 6 Lyn b) is an extrasolar planet orbiting the K-type subgiant star 6 Lyncis which is approximately 182 light years away in the Lynx constellation. The planet has a minimum mass 2.4 MJ. The orbital period for this planet is 899 days, or 2.46 years. The orbital radius for this planet is 2.2 AU, periastron 1.9 AU, and apastron 2.5 AU, corresponding to the orbital eccentricity of 0.134.[2] This planet was discovered on July 3, 2008 by Sato et al., who used Doppler spectroscopy to find variations of the line of sight motion of the star caused by the planet’s gravity during its orbit.

See alsoEdit


  1. 1.0 1.1 1.2 1.3 (2007). Validation of the new Hipparcos reduction. Astronomy and Astrophysics 474 (2): 653–664. Vizier catalog entry
  2. (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.

External linksEdit

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

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