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HD 141937 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 141937</td></tr><tr> <td colspan="2">Constellation</td> <td>Libra</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>15h 52m 17.5474s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−18° 26′ 09.834″</td></tr><tr><td colspan="2">Distance</td><td>109 ly
(33.5 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G2/G3V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>1.52 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.90 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>2.14 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.41 ± 0.01</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>653.2 ± 1.2 d
(1.788 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>25.4 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>187.72 ± 0.8°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,451,847.4 ± 2.0 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>234.5 ± 6.4 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>9.68 MJ
(3080 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>April 4, 2001[1]</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Udry et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>radial velocity
(CORALIE)</td></tr><tr> <td colspan="2">Discovery site</td> <td>La Silla Observatory</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr>

Other designations
HIP 77740 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>

HD 141937 b is an extrasolar planet discovered in April 2001[1] with mass of 9.7 times Jupiter. The mass is minimum since the inclination of the orbit is unknown, which will probably be a brown dwarf instead if the true mass is known. 653-day orbit would place the distance one and a half times farther away from the star as Earth is from the Sun with high eccentricity of 41%.

See also Edit

ReferencesEdit

  1. 1.0 1.1 Script error

External links Edit

Coordinates: Sky map 15h 52m 17.5474s, −18° 26′ 09.834″


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