HD 196050
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Stern HD 196050 |
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| AladinLite | |||||||||||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | peacock | ||||||||||||
| Right ascension | 20 h 37 m 51.71 s | ||||||||||||
| declination | -60 ° 38 ′ 4.1 ″ | ||||||||||||
| Apparent brightness | 7.5 likes | ||||||||||||
| Typing | |||||||||||||
| Known exoplanets | 1 | ||||||||||||
| Spectral class | G3 V | ||||||||||||
| Astrometry | |||||||||||||
| Radial velocity | (+61.3 ± 0.3) km / s | ||||||||||||
| parallax | (20.01 ± 0.66) mas | ||||||||||||
| distance | (163 ± 5) ly (50.0 ± 1.6) pc |
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| Visual absolute brightness M vis | +4.0 mag | ||||||||||||
| Proper movement | |||||||||||||
| Rec. Share: | (−190.72 ± 0.40) mas / a | ||||||||||||
| Dec. portion: | (−65.82 ± 0.55) mas / a | ||||||||||||
| Physical Properties | |||||||||||||
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Other names and catalog entries |
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HD 196050 is a star in the constellation Peacock. The star is around 160 light years (50 parsecs ) away from our solar system . The apparent magnitude is 7.5 mag, the spectral type is G3 V. The star is similar in size and luminosity to our sun (only about 10–20% larger than the sun), but somewhat younger. In 2002 a planet was discovered around HD 196050.
The planet
The planet HD 196050 b is simply called "b" according to the prevailing nomenclature. The large number of exoplanets that have now been found (over 1500 in 2014) makes it impractical to give each of the planets a proper name that would correspond to the name in the solar system. HD 196050 b was discovered in 2002 by the radial velocity method. The movement of the central star, which is caused by the gravitational effect of the planet, is measured. It orbits its star at a distance of 2.54 AU with an eccentricity of 0.228 ± 0.038. The planet needs 1378 ± 21 days to orbit Jupiter with a mass of 2.90 .
credentials
- Jones et al .: Extrasolar planets around HD 196050, HD 216437 and HD 160691 . In: Monthly Notice of the Royal Astronomical Society . 337, No. 4, 2002, pp. 1170-1178. bibcode : 2002MNRAS.337.1170J .
- Greenhill et al .: epsilon Eridani, upsilon Andromedae, 51 Pegasi, HD 209458, HD 196050 . In: IAU Circ. . 2002. bibcode : 2002IAUC.7985 .... 1G .
- Mugrauer et al .: Four new wide binaries among exoplanet host stars . In: Astronomy and Astrophysics . 440, No. 3, 2005, pp. 1051-1060. bibcode : 2005A & A ... 440.1051M .
Web links
- Notes for star HD 196050 . In: The Extrasolar Planets Encyclopaedia . Retrieved December 16, 2007.
- Notes for planet HD 196050 . In: The Extrasolar Planets Encyclopaedia . Retrieved December 16, 2007.
- HD 196050 - Yellow Main Sequence Star . In: Extrasolar Visions . Retrieved December 16, 2007.
- HD 196050 B - Water Cloud Jovian, Eccentric . In: Extrasolar Visions . Retrieved December 16, 2007.
- HD 196050 - Star . In: SIMBAD . Retrieved December 16, 2007.
- HD 196050 b - Extra-solar Planet Candidate . In: SIMBAD . Retrieved December 16, 2007.