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HD 73526 c
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 73526</td></tr><tr> <td colspan="2">Constellation</td> <td>Vela</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>08h 37m 16.4839s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−41° 19′ 08.767″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>9</td></tr><tr><td colspan="2">Distance</td><td>322.9 ly
(99.0 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G6V</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>1.02 M</td></tr><tr> <td>Radius</td> <td style="text-align: center">(r)</td> <td>1.49 R</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>5470 K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>0.28</td></tr><tr> <td>Age</td> <td style="text-align: center"></td> <td>5.59 Gyr</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>1.05±0.08 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.40±0.05</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>376.9±0.9 d</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>183±30°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,450,184±33 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>67.4±3.6 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>2.30±0.17 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>Feb 25, 2006</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Tinney et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</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 73526 c is an extrasolar planet orbiting about 97 million miles (1.05 AU) away from its parent star. Based on its mass, this planet is likely to be a gas giant. At the distance this planet orbits from its star, which is more luminous than our Sun, HD 73526 c would receive insolation 84% that of Venus.

HD 73526 c is in a 2:1 orbital resonance with HD 73526 b. Every time planet b goes around its sun twice, planet c goes around once, a similar configuration to planets b and c of the Gliese 876 system.[1]

See also Edit

ReferencesEdit

  1. (2006). The 2 : 1 Resonant Exoplanetary System Orbiting HD 73526. The Astrophysical Journal 647 (1): 594–599.

Coordinates: Sky map 08h 37m 16.4839s, −41° 19′ 08.767″


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