HD 82943
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Stern HD 82943 |
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| AladinLite | |||||||||
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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 | ||||||||
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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)