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41 Lyncis b
Extrasolar planet List of extrasolar planets
300px
Artistic rendering of HD 81688 b
Parent star

<tr> <td colspan="2">Star</td> <td>41 Lyncis</td></tr><tr> <td colspan="2">Constellation</td> <td>Ursa Major</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>09h 28m 40s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+45° 36′ 05″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>5.41</td></tr><tr><td colspan="2">Distance</td><td>287.9 ± 26 ly
(88.26 ± 8 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K0III-IV</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.81 AU
(122 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>184.02 ± 0.18 d
(0.50381 y)</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,452,335.4 ± 1.1 JD</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>2.7 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>February 19, 2008</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Sato et al.[1]</td></tr><tr> <td colspan="2">Discovery method</td> <td>radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>Okayama Planet
Search Program

Template:Country data Japan</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[1]</td></tr>

Other designations
HD 81688 b

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

41 Lyncis b (also called HD 81688 b) is a gas giant exoplanet that orbits the star 41 Lyncis. It has a minimum mass of 2.7 times that of Jupiter and an orbital period of 184 days (corresponding to semi-major axis of 0.81 AU). It was discovered and announced by Sato on February 19, 2008.[1]

See alsoEdit

ReferencesEdit

  1. 1.0 1.1 1.2 (2008). Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae and HD 81688. Publications of the Astronomical Society of Japan 60 (3): 539–550.


Coordinates: Sky map 09h 28m 40s, +45° 36′ 05″


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