ADS 16402
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Double star ADS 16402 |
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| AladinLite | ||||||||
| Constellation | lizard | |||||||
| Right ascension | 22 h 57 m 47 s | |||||||
| declination | + 38 ° 40 ′ 28 ″ | |||||||
| Known exoplanets |
1 |
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| Astrometry | ||||||||
| distance | (450 ± 70) ly ((140 ± 20) pc ) |
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| Individual data | ||||||||
| Names | A; B. | |||||||
| Observation data: | ||||||||
| Apparent brightness | A. | 10.0 mag | ||||||
| B. | 10.4 mag | |||||||
| Typing: | ||||||||
| Spectral class | A. | G0 | ||||||
| B. | G0 | |||||||
| Other names and catalog entries |
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ADS 16402 is the name of a binary star system in the constellation Lizard . The stars of the system, ADS 16402 A and ADS 16402 B , both belong to the spectral class G0 and are about 450 light-years away from Earth. Component A has an apparent brightness of 10.0 mag, component B of 10.4 mag. The angular spacing of the stars is 11 ", 2, which corresponds to a distance of about 1600 AU. The age of both suns is estimated at 3.6 billion years. ADS 16402 B is orbited by an exoplanet and is also known as HAT-P in this context -1 known.
Planet HAT-P-1 b
Around ADS 16402 B (HAT-P-1), an exoplanet known as HAT-P-1b and belonging to the class of Hot Jupiters was discovered . It was discovered using a network of small wide-angle telescopes based on the Hungarian Automated Telescope (HAT) using the transit method. The distance between the exoplanet and the star AD 16402 B is only 5% of the distance between the earth and the sun. HAT-P-1b only needs about four and a half days to orbit its central star.