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HD 102195 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 102195</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>11h 45m 42.2920s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+02° 49′ 17.340″</td></tr><tr><td colspan="2">Distance</td><td>94.52 ly
(28.98 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K0V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.049 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.046 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.052 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.06 (± 0.03)</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>4.115 (± 0.001) d
(0.01127 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>130 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>109.9 (± 10)°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2453731.7 (± 0.5) JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>63.4 (± 2.0) m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.488 MJ
(155 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>January 12, 2006</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Ge et al.[1]</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler spectroscopy
(Exoplanet Tracker)</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[1]</td></tr>

Other designations
ET-1

<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 102195 b (also called ET-1) is an extrasolar planet orbiting the star HD 102195 in the constellation of Virgo, discovered in January 2006. It is the first planet discovered by the Exoplanet Tracker project, using a dispersed fixed-delay interferometer. The planet is an example of a hot Jupiter, and is likely to be a gas giant based on its mass.[1]

ReferencesEdit

External links Edit

Coordinates: Sky map 11h 45m 42.2920s, +02° 49′ 17.340″


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