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Xi Aquilae b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>Xi Aquilae</td></tr><tr> <td colspan="2">Constellation</td> <td>Aquila</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>19h 54m 15s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+08° 27′ 41″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>4.72</td></tr><tr><td colspan="2">Distance</td><td>205 ± 13 ly
(62.7 ± 3.9 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G9IIIb</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.68 AU
(101 Gm)</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>10.8 mas</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>136.75 ± 0.25 d
(0.37439 y)</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,453,001.7 ± 1.4 JD</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>2.8 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>19 February 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> <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>

Xi Aquilae b (or ksi Aql b) is an extrasolar planet approximately 200 light-years away in the constellation of Aquila. The planet was discovered orbiting the yellow giant star Xi Aquilae in 2008. The planet has a minimum mass of 2.8 Jupiter and a period of 137 days.[1]

See also Edit

References Edit

  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.

External links Edit

  • ksi Aql. Exoplanets. Retrieved 2008-06-25.


Coordinates: Sky map 19h 54m 15s, +08° 27′ 41″


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