HD 82943
Stern HD 82943 |
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AladinLite | |||||||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Water snake | ||||||||
Right ascension | 09 h 34 m 50.74 s | ||||||||
declination | -12 ° 07 ′ 46.4 ″ | ||||||||
Apparent brightness | 6.54 mag | ||||||||
Typing | |||||||||
Known exoplanets | 2 | ||||||||
Spectral class | G0 | ||||||||
Astrometry | |||||||||
Radial velocity | (8.3 ± 0.2) km / s | ||||||||
parallax | (36.40 ± 0.47) mas | ||||||||
distance | (89.6 ± 1.2) ly (27.47 ± 0.35) pc |
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Visual absolute brightness M vis | +4.35 mag | ||||||||
Proper movement | |||||||||
Rec. Share: | (3.00 ± 0.48) mas / a | ||||||||
Dec. portion: | (−175.01 ± 0.33) mas / a | ||||||||
Physical Properties | |||||||||
Dimensions | 1.18 M ☉ | ||||||||
radius | 1.12 R ☉ | ||||||||
Effective temperature | 5874 K | ||||||||
Metallicity [Fe / H] | 0.27 | ||||||||
Age | 3.08 · 10 9 a | ||||||||
Other names and catalog entries |
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HD 82943 is a yellow dwarf orbited by at least two planets , HD 82943 b and HD 82943 c . The star has the spectral class G0V. Its mass is around 1.18 solar masses . Its companions were discovered in 2000 and 2001 through measurements of its radial velocity .
Web links
Individual evidence
- ↑ a b c Hipparcos catalog (ESA 1997)
- ↑ Pulkovo radial velocities for 35493 HIP stars
- ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)