HD 46375
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Stern HD 46375 |
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| AladinLite | |||||||||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | unicorn | ||||||||||
| Right ascension | 06 h 33 m 12.62 s | ||||||||||
| declination | + 05 ° 27 ′ 46.5 ″ | ||||||||||
| Apparent brightness | 7.91 mag | ||||||||||
| Typing | |||||||||||
| Known exoplanets | 1 | ||||||||||
| Spectral class | K1 IV | ||||||||||
| Astrometry | |||||||||||
| Radial velocity | (−1.1 ± 0.2) km / s | ||||||||||
| parallax | (28.72 ± 0.89) mas | ||||||||||
| distance | (114 ± 4) ly (34.8 ± 1.1) pc |
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| Visual absolute brightness M vis | +5.2 mag | ||||||||||
| Proper movement | |||||||||||
| Rec. Share: | (+111.96 ± 0.88) mas / a | ||||||||||
| Dec. portion: | (−97.17 ± 0.67) mas / a | ||||||||||
| Physical Properties | |||||||||||
| Dimensions | 0.91 M ☉ | ||||||||||
| radius | 1 R ☉ | ||||||||||
| Effective temperature | 5199 K | ||||||||||
| Metallicity [Fe / H] | +0.24 | ||||||||||
| Age | approx. 5 bill. a | ||||||||||
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Other names and catalog entries |
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HD 46375 is a sub-giant in the constellation Monoceros, 114 light-years away from Earth . It has an apparent magnitude of 7.9 mag.
In 2000, Geoffrey Marcy discovered an extrasolar planet orbiting this star with a period of 3.02 days . The orbit of the celestial body with the systematic designation HD 46375 b has a major semi-axis of 0.040 astronomical units and an eccentricity of 0.063. The minimum mass of the object is 0.23 masses of Jupiter (approx. 72 earth masses ).
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)
- ↑ calculated on the basis of the apparent brightness and the distance