HD 142022
Double star HD 142022 A |
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AladinLite | |||||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Octant | ||||||
Right ascension | 16 h 10 m 15.02 s | ||||||
declination | -84 ° 13 ′ 53.8 ″ | ||||||
Apparent brightness | 7.7 likes | ||||||
Typing | |||||||
Known exoplanets | 1 | ||||||
Spectral class | K0 V | ||||||
Astrometry | |||||||
Radial velocity | (−9.6 ± 0.4) km / s | ||||||
parallax | (29.13 ± 0.57) mas | ||||||
distance | (112 ± 2) Lj (34.33 ± 0.67) pc |
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Visual absolute brightness M vis | +5.02 mag | ||||||
Proper movement | |||||||
Rec. Share: | (−336.32 ± 0.56) mas / a | ||||||
Dec. portion: | (−31.77 ± 0.70) mas / a | ||||||
Physical Properties | |||||||
Dimensions | 0.99 M ☉ | ||||||
radius | 0.705 (± 0.135) R ☉ | ||||||
Effective temperature | 5382 K | ||||||
Metallicity [Fe / H] | 0.19 | ||||||
Age | 13.3 · 10 9 a | ||||||
Other names and catalog entries |
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annotation | |||||||
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HD 142022 A is a late main sequence star 112 light years away from Earth with a right ascension of 16h 10m 15s and a declination of −84 ° 13 '53 ". It has an apparent magnitude of 7.7 mag. Anne Eggenberger discovered one in 2005 extrasolar planet orbiting this star, which is called HD 142022 Ab . Furthermore, there is also a second star in this system called HD 142022 B, which orbits HD 142022 A. This makes this system a double star .