FANDOM


HD 47186 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 47186</td></tr><tr> <td colspan="2">Constellation</td> <td>Canis Major</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>06h 36m 08.7880s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−27° 37′ 20.268″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>7.8</td></tr><tr><td colspan="2">Distance</td><td>123.4 ly
(37.8 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>0.99 M</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>5675 ± 21 K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>0.23 ± 0.02</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.050 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.048 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>0.038 ± 0.02</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>4.0845 ± 0.0002 d</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>130 km/s</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,454,562.77 ± 0.08 JD</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.07167 MJ
(22.78 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>June 16, 2008</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Bouchy et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler spectroscopy</td></tr><tr> <td colspan="2">Discovery site</td> <td>23x15px 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 47186 b is a “hot Neptuneextrasolar planet located approximately 123 light years away in the constellation of Canis Major, orbiting the star HD 47186. This planet has a minimum mass of 22.78 times that of Earth and orbits very close to the star at a similar distance from the star as 51 Pegasi b is from 51 Pegasi. As in consequence, it takes 4.0845 days to complete an orbit with an eccentricity of 0.038, which is similar to the 5.66 year-period planet HD 70642 b.

References Edit

External links Edit

Coordinates: Sky map 06h 36m 08.7880s, −27° 37′ 20.268″ Template:HD 47186


Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.