HD 108874
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Star HD 108874 |
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| AladinLite | |||||||||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Berenike's hair | ||||||||||
| Right ascension | 12 h 30 m 26.88 s | ||||||||||
| declination | + 22 ° 52 ′ 47.4 ″ | ||||||||||
| Apparent brightness | 8.76 likes | ||||||||||
| Typing | |||||||||||
| Known exoplanets | 2 | ||||||||||
| Spectral class | G5 | ||||||||||
| Astrometry | |||||||||||
| Radial velocity | (−30.2 ± 0.2) km / s | ||||||||||
| parallax | (15.97 ± 1.07) mas | ||||||||||
| distance | (204 ± 14) ly (62.6 ± 4.2) pc |
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| Visual absolute brightness M vis | approx. +4.8 mag | ||||||||||
| Proper movement | |||||||||||
| Rec. Share: | (+127.11 ± 0.96) mas / a | ||||||||||
| Dec. portion: | (−89.47 ± 0.84) mas / a | ||||||||||
| Physical Properties | |||||||||||
| Dimensions | 1 M ☉ | ||||||||||
| radius | 1.22 R ☉ | ||||||||||
| Effective temperature | 5407 K | ||||||||||
| Metallicity [Fe / H] | 0.14 | ||||||||||
| Age | approx. 7 bill. a | ||||||||||
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Other names and catalog entries |
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HD 108874 is a yellow dwarf with spectral class G5V that is orbited by at least two exoplanets. It is around 200 light years away and has a mass of around one solar mass .
Its companions were discovered through measurements of its radial velocity . The inner extrasolar planet bears the systematic name HD 108874 b and has an orbital period of almost 400 days and a minimum mass of around 1.4 Jupiter's masses . His discovery was supported by Butler et al. published in 2003. The outer companion with the designation HD 108874 c needs about 1600 days for the orbit around the central star and has an estimated minimum mass of about one Jupiter's mass. His discovery was published in 2005 by Vogt et al.