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HD 169830 c
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 169830</td></tr><tr> <td colspan="2">Constellation</td> <td>Sagittarius</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>18h 27m 49.4838s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–29° 49′ 00.715″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>5.9</td></tr><tr><td colspan="2">Distance</td><td>118.49 ly
(36.33 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>F7V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>3.30 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.264 ± 0.04</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>1830 ± 28 d</td></tr><tr> <td>Inclination</td> <td style="text-align: center">(i)</td> <td>?°</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>252 ± 8°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,452,516 ± 25 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>54.3 ± 3.6 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>3.48 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>30 June 2003</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Mayor, Udry et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>Template:Country data Switzerland</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</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>

HD 169830 c is an extrasolar planet, most likely a gas giant, three and a half times as massive as Jupiter. Its orbit is eccentric, with a period (year) of 1830 days.[1]

See also Edit

ReferencesEdit

Coordinates: Sky map 18h 27m 49.4838s, −29° 49′ 00.715″


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