HD 196050

Starbox short
name = HD 196050
epoch = J2000.0
constell = Pavo
ra = 20h 37m 51.7102s
dec = −60º 38' 04.1346″
spectral = G3V
appmag_v = 7.6
absmag_v = 4.2
dist_ly = 153.05
dist_pc = 46.93
names = HIP 101806, SAO 254837

HD 196050 is a star located in the constellation Pavo at a distance of 153 light years or 47 parsecs or 1.45 exameters away from the Solar System. This star has the apparent magnitude of 7.6 and the absolute magnitude is 4.2. It is a yellow main-sequence star of spectral type G3. The mass & radius are larger than the Sun by 10-20%. The age of the star is younger and intermediate in metallicity. The star is also called by the Hipparcos number 101806.

HD 196050 b

Infobox Planet
bgcolour = #A0B0FF
name = HD 196050 b
discovery = yes
discoverer = Jones et al.
discovery_site = Australia
discovered = 2002
discovery_method = Doppler Spectroscopy
designations = yes
alt_names = HIP 101806 b
SAO 254837 b
semimajor = 2.54 AU
periastron = 1.96 AU
apastron = 3.12 AU
avg_speed = 20.1 km/s
eccentricity = 0.228±0.038
period = 1378±21 d
angular_dist = 54.12 mas
long_periastron = 187±12°
time_periastron = 2450843±56JD
semi-amplitude = 49.7±2 m/s
physical_characteristics = yes
mass = >2.90 "M"_J

HD 196050 b is a 1378-day extrasolar planet with a minimum mass of 2.90 Jupiter mass. The average orbital distance is 2.54 astronomical units or 380 gigameters or 12.3 microparsecs. The eccentricity of the orbit is 22.8%. The periastron (closest) distance is 1.96 AU and the apastron (farthest) distance is 3.12 AU. The average orbital velocity is 20.1 km/s and the semi-amplitude is 49.7 m/s. The longitude of periastron is 187° and the time of periastron is 2,450,843 JD.

The planet is typically discovered by using Doppler spectrometer by looking for shifts in the spectrum of the star. In Australia, Jones et al. found this planet in 2002 by using the telescope in Anglo-Australian Observatory.

References

* [http://arxiv.org/abs/astro-ph/0206216 web preprint]
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External links

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