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HD 125612 d
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 125612</td></tr><tr> <td colspan="2">Constellation</td> <td>Virgo</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>14h 20m 53.5147s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–17° 28′ 53.475″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>8.31[1]</td></tr><tr><td colspan="2">Distance</td><td>172.28 ly
(52.82 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G3V[1]</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>1.091 ± 0.027[1] M</td></tr><tr> <td>Radius</td> <td style="text-align: center">(r)</td> <td>1.05 ± 0.08 R</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>5900 ± 18[1] K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>0.24 ± 0.014[1]</td></tr><tr> <td>Age</td> <td style="text-align: center"></td> <td><3[1] Gyr</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>4.2[1] AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.28 ± 0.12[1]</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>3008 ± 202[1] d</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>−76 ± 8[1]°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,457,174+396
−17
[1] JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>96.6 ± 4.7[1] m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>7.2[1] MJ</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>Segransan 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>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>

HD 125612 d is an extrasolar planet which orbits the G-type main sequence star HD 125612, located approximately 172 light years away in the constellation Virgo. This planet was detected by HARPS on October 19, 2009, together with 29 other planets, including HD 125612 c.

ReferencesEdit

  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 Lo Curto, G. et al. (2010). The HARPS search for southern extra-solar planets. XXII. Multiple planet systems from the HARPS volume limited sample. Astronomy and Astrophysics 512.

Coordinates: Sky map 14h 20m 53.5147s, −17° 28′ 53.475″ Template:HD 125612


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