Extrasolar planet List of extrasolar planets
Size comparison of HAT-P-5b with Jupiter.
Parent star

<tr> <td colspan="2">Star</td> <td>HAT-P-5</td></tr><tr> <td colspan="2">Constellation</td> <td>Lyra</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>18h 17m 37.299s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+36° 37′ 16.88″</td></tr><tr><td colspan="2">Distance</td><td>1100 ± 100 ly
(340 ± 30 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.04075 ± 0.00076 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.04075 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.04075 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>2.788491 ± 2.5e-5 d
(0.007634339 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>159.5 km/s</td></tr><tr> <td>Inclination</td> <td style="text-align: center">(i)</td> <td>86.75 ± 0.44°</td></tr><tr> <td>Time of transit</td> <td style="text-align: center">(Tt)</td> <td>2,454,241.77663 ± 0.00022 JD</td></tr>

Physical characteristics

<tr><td>Mass</td><td style="text-align: center">(m)</td><td>1.06 ± 0.11 MJ</td></tr><tr><td>Radius</td><td style="text-align: center">(r)</td><td>1.26 ± 0.05 Template:Jupiter radius</td></tr><tr><td>Density</td><td style="text-align: center">(ρ)</td><td>660 ± 110 kg m-3</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>October 9, 2007</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Bakos 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-5b is a transiting extrasolar planet located approximately 1100 light-years away in the constellation of Lyra, orbiting the star HAT-P-5. It is a hot Jupiter with a mass 6% greater than Jupiter and a radius 26% greater than Jupiter, corresponding to a density of 0.66 g/cm3, which is less than water. This planet was found by Bakos et al. on October 9, 2007.[1]

See also Edit

References Edit

  1. (2007). HAT-P-5b: A Jupiter-like Hot Jupiter Transiting a Bright Star. The Astrophysical Journal Letters 671 (2): L173–L176.

External links Edit


Coordinates: Sky map 18h 17m 37.299s, +36° 37′ 16.88″

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