HD 30177
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Star HD 30177 |
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| AladinLite | |||||||||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Swordfish | ||||||||||
| Right ascension | 04 h 41 m 54.37 s | ||||||||||
| declination | -58 ° 01 ′ 14.7 ″ | ||||||||||
| Apparent brightness | 8.41 mag | ||||||||||
| Typing | |||||||||||
| Known exoplanets | 1 | ||||||||||
| Spectral class | G8 V | ||||||||||
| Astrometry | |||||||||||
| parallax | (18.93 ± 0.63) mas | ||||||||||
| distance | (172 ± 6) ly (52.8 ± 1.8) pc |
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| Visual absolute brightness M vis | +4.80 mag | ||||||||||
| Proper movement | |||||||||||
| Rec. Share: | (66.15 ± 0.74) mas / a | ||||||||||
| Dec. portion: | (-11.45 ± 0.77) mas / a | ||||||||||
| Physical Properties | |||||||||||
| Dimensions | approx. 0.95 M ☉ | ||||||||||
| radius | approx. 1.1 R ☉ | ||||||||||
| Effective temperature | approx. 5610 K | ||||||||||
| Metallicity [Fe / H] | 0.25 | ||||||||||
| Age | approx. 8 · 10 9 a | ||||||||||
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Other names and catalog entries |
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HD 30177 is a main sequence star of the spectral class G8 in the constellation Doradus, about 172 light years away . It has an apparent magnitude of 8.4 mag.
In 2002 Paul Butler discovered a potential extrasolar planet orbiting this star using the radial velocity method . This has the systematic designation HD 30177 b .
HD 30177 b
HD 30177 b is a potential exoplanet that orbits the central star every 2770 days . It orbits its star at a distance of about 3.95 astronomical units with an eccentricity of 0.19 and has a mass of at least about 10 Jupiter's masses.