HD 20367
Stern HD 20367 |
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AladinLite | |||||||||||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Aries | ||||||||||||
Right ascension | 03 h 17 m 40.05 s | ||||||||||||
declination | + 31 ° 07 ′ 37.4 ″ | ||||||||||||
Apparent brightness | 6.4 mag | ||||||||||||
Typing | |||||||||||||
Known exoplanets | 1 | ||||||||||||
Spectral class | G0 | ||||||||||||
Astrometry | |||||||||||||
Radial velocity | (+5.9 ± 0.3) km / s | ||||||||||||
parallax | (37.48 ± 0.63) mas | ||||||||||||
distance | (87.0 ± 1.5) ly (26.68 ± 0.45) pc |
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Visual absolute brightness M vis | approx. +4.3 mag | ||||||||||||
Proper movement | |||||||||||||
Rec. Share: | (−104.18 ± 0.50) mas / a | ||||||||||||
Dec. portion: | (−58.11 ± 0.48) mas / a | ||||||||||||
Physical Properties | |||||||||||||
Dimensions | (1.04 ± 0.06) M ☉ | ||||||||||||
radius | (1.2 ± 0.3) R ☉ | ||||||||||||
Other names and catalog entries |
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HD 20367 is a main sequence star of spectral class G0 in the constellation Aries , about 87 light-years away , in which an exoplanet was discovered. The star has an apparent magnitude of 6.4 mag.
Planetary companion
The exoplanet HD 20367 b orbits the star with an orbital period of around 470 days . Its orbit has a semi-major axis of approximately 1.2 astronomical units and an eccentricity of approximately 0.3. The minimum mass M · sin (i) of the object is about 1.2 Jupiter masses. The object was designed by Mayor et al. discovered using the radial velocity method and published in 2002.
Web link
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)
- ↑ due to the apparent brightness and distance