Extrasolar planet List of extrasolar planets
Size comparison of HAT-P-6b with Jupiter.
Parent star

<tr> <td colspan="2">Star</td> <td>HAT-P-6</td></tr><tr> <td colspan="2">Constellation</td> <td>Andromeda</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>23h 39m 05.8061s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+42° 27′ 57.513″</td></tr><tr><td colspan="2">Distance</td><td>approx. 650 ly
(approx. 200 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>F</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.05235 ± 0.00087 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.05235 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.05235 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>3.852985 ± 5e-6 d
(0.01054871 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>148.3 km/s</td></tr><tr> <td>Time of transit</td> <td style="text-align: center">(Tt)</td> <td>2,454,035.67575 ± 0.00028 JD</td></tr>

Physical characteristics

<tr><td>Mass</td><td style="text-align: center">(m)</td><td>1.057 ± 0.119 MJ</td></tr><tr><td>Radius</td><td style="text-align: center">(r)</td><td>1.33 ± 0.061 Template:Jupiter radius</td></tr><tr><td>Density</td><td style="text-align: center">(ρ)</td><td>450 kg m-3</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>October 15, 2007</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Noyes et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>transit</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
</td><td>data</td></tr><tr><td colspan=2>SIMBAD</td><td>data</td></tr>

HAT-P-6b is a transiting extrasolar planet[1] located approximately 650 light-years away in the constellation of Andromeda, orbiting the star HAT-P-6. This hot Jupiter planet orbits with a semi-major axis of about 7.832 gigameters, and takes 92 hours, 28 minutes, 17 seconds and 9 deciseconds to orbit the star. It has true mass of 5.7% greater than Jupiter and a radius 33% greater than Jupiter, corresponding to a density of 0.45 g/cm3, which is less than water. This planet was found by Noyes et al. on October 15, 2007.

See also Edit

References Edit

  1. (2008). HAT-P-6b: A Hot Jupiter Transiting a Bright F Star. The Astrophysical Journal Letters 673 (1): L79–L82.

External links Edit


Coordinates: Sky map 23h 39m 05.8061s, +42° 27′ 57.513″

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