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BD-08°2823 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>BD-08°2823</td></tr><tr> <td colspan="2">Constellation</td> <td>Sextans</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>10h 00m 47.7213s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–09° 31′ 00.046″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>9.86</td></tr><tr><td colspan="2">Distance</td><td>137.3 ± 9.8 ly
(43.9 ± 3 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K3V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.056 AU
(8.3 Gm)</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.047 AU
(7.0 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.064 AU
(9.6 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.15</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>5.60 d</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>(134 h)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>108 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>30 ± 100°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2454637.7 ± 1.6 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>6.5 ± 1.0 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.045 MJ
(14 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>October 19, 2009</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Hebrard et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity (HARPS)</td></tr><tr> <td colspan="2">Discovery site</td> <td>La Silla Observatory</td></tr><tr> <td colspan="2">Discovery status</td> <td>Preprint</td></tr> <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>

BD-08°2823 b (also known as HIP 49067 b) is an extrasolar planet which orbits the K-type main sequence star BD-08°2823, located approximately 137 light years away in the constellation Sextans. This planet has at least 14 times the mass of Earth and takes four-fifths of a week to orbit the star at a semimajor axis of 0.056 AU. This planet is classified as a hot Neptune. This planet was detected by HARPS on October 19, 2009, together with 29 other planets, including BD-08°2823 c.

References Edit

Coordinates: Sky map 10h 00m 47.7213s, −09° 31′ 00.046″


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