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WASP-7b
Extrasolar planet List of extrasolar planets
300px
Size comparison of WASP-7b with Jupiter.
Parent star

<tr> <td colspan="2">Star</td> <td>WASP-7</td></tr><tr> <td colspan="2">Constellation</td> <td>Microscopium</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>20h 44m 10.2190s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−39° 13′ 30.894″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>9.51</td></tr><tr><td colspan="2">Distance</td><td>490 ly
(150 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>F6</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.0618+0.0014
−0.0033
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>4.954658+5.5e-5
−4.3e-5
d</td></tr><tr> <td>Inclination</td> <td style="text-align: center">(i)</td> <td>89.6+0.4
−0.9
°</td></tr><tr> <td>Time of transit</td> <td style="text-align: center">(Tt)</td> <td>2453985.0149+0.0009
−0.00012
JD</td></tr>

Physical characteristics

<tr><td>Mass</td><td style="text-align: center">(m)</td><td>0.96+0.12
−0.18
MJ</td></tr><tr><td>Radius</td><td style="text-align: center">(r)</td><td>0.915+0.046
−0.04
Template:Jupiter radius</td></tr><tr><td>Density</td><td style="text-align: center">(ρ)</td><td>1660 kg m-3</td></tr><tr><td>Surface gravity</td><td style="text-align: center">(g)</td><td>3.03 g</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>2000 K</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>April 1, 2008</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Cameron et al. (SuperWASP)</td></tr><tr> <td colspan="2">Discovery method</td> <td>Transit</td></tr><tr> <td colspan="2">Discovery site</td> <td>SAAO</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
Encyclopaedia
</td><td>data</td></tr><tr><td colspan=2>SIMBAD</td><td>data</td></tr>

File:Planet WASP-7 b.png

WASP-7b is an extrasolar planet discovered in 2008. This 5-day period planet is slightly smaller than Jupiter, roughly the same mass and more dense.[1]

See alsoEdit

ReferencesEdit

  1. Hellier (December 11, 2008). WASP-7: A BRIGHT TRANSITING-EXOPLANET SYSTEM IN THE SOUTHERN HEMISPHERE. The Astrophysical Journal Letters 690 (1): L89–L91.

External linksEdit

Template:Commonscat-inline

Coordinates: Sky map 20h 44m 10s, −39° 13′ 31″


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