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HD 24496 Ab
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 24496 A</td></tr><tr> <td colspan="2">Constellation</td> <td>Taurus</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>03h 54m 28.0332s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+16° 36′ 57.793″</td></tr><tr><td colspan="2">Distance</td><td>66.59 ly
(20.42 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G5</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>0.95 M</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>2.59 ± 0.06 AU
(387 Gm)</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>52.8 mas</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>1.81 AU
(270 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>3.37 AU
(504 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.30 ± 0.15</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>1570 ± 51 d
(4.30 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>18.0 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>201 ± 45°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>23169 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>6.2 ± 1.0 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.32 ± 0.05 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>November 13, 2009</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Howard et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>Keck Observatory</td></tr><tr> <td colspan="2">Discovery status</td> <td>Submitted</td></tr>

Other designations
BD+16°527 b, HIP 18267 b, GJ 3255 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 24496 Ab, or simply HD 24496 b, (also known as HIP 18267 b) is an extrasolar planet which orbits the G-type star HD 24496 A, located approximately 66.5 light years away in the constellation Taurus.[1] This is a wide-orbiting saturnian planet discovered on November 13, 2009. The orbital distance for this planet ranges from 1.81 AU to 3.37 AU.Template:Citation needed

See also Edit

Other planets that were discovered or confirmed on November 13, 2009:

References Edit

Coordinates: Sky map 03h 54m 28.0332s, +16° 36′ 57.793″ Template:Nearest bright star systems


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