HAT-P-7
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Star HAT-P-7 |
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| AladinLite | |||||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | swan | ||||||
| Right ascension | 19 h 28 m 59 s | ||||||
| declination | + 47 ° 58 ′ 10 ″ | ||||||
| Apparent brightness | 10.5 mag | ||||||
| Typing | |||||||
| Known exoplanets | 1 | ||||||
| Spectral class | F8 | ||||||
| Astrometry | |||||||
| distance | 1,000 ly 300 pc |
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| Proper movement | |||||||
| Rec. Share: | −13 mas / a | ||||||
| Dec. portion: | +13 mas / a | ||||||
| Physical Properties | |||||||
| Dimensions | 1.09 M ☉ | ||||||
| radius | 1.47 R ☉ | ||||||
| Effective temperature | 6350 K | ||||||
| Metallicity [Fe / H] | +0.26 | ||||||
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Other names and catalog entries |
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HAT-P-7 is a main sequence star of the spectral class F8 with an apparent magnitude of 10.5 mag, about 1000 light years from Earth . In 2008 the discovery of an exoplanet around this star was announced as part of the HATNet project : HAT-P-7b .
Brightness curves of the star measured by the Kepler space telescope . The planet orbiting it causes periodic drops in brightness through transit and obscuration by the star.
Web links