HD 130322

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HD 130322
Observation data
Epoch 2000
Constellation
(pronunciation)
Virgo
Right ascension 14h 47m 32.73s
Declination -0° 16' 53.31"
Apparent magnitude (V) 8.05
Distance 97.02 ly
(29.76 pc)
Spectral type K0V
Other designations
BD+00°3243, HIP 72339

HD 130322 is an 8th magnitude star in the constellation of Virgo. It is an orange dwarf, a type of star somewhat dimmer and cooler than our Sun. Spectral type of the star is K0 V. It can only be seen with binoculars or telescope. Being almost exactly on the celestial equator the star is visible everywhere in the world except for the North Pole.

In 2000 an extrasolar planet was discovered orbiting the star.


[edit] HD 130322 b

HD 130322 b
Orbital elements
Semi-major axis a: 0.088 AU
Eccentricity e: 0.048
Orbital period P: 10.724 d
Inclination i:  ?°
Angular distance θ: 3 mas
Longitude of
periastron ω:
205 ± 22°
Time of periastron τ: 2451383.93
± 0.65 JD
Semi-amplitude K: 109.6 ± 4.2 m/s
Physical characteristics
Mass: >1.08 MJ
Radius: 1.31 RJ
Density: 637 kg/
Gravity: 1.48 g
Temperature: 715 K
Discovery
Discovery date: 2000
Discovery site:
Detection method(s):
Discoverer(s): Udry, Mayor,
Pepe et al.
Other catalogue


HD 130322 b is a planet with a minimum mass slightly more than that of Jupiter. It orbits the star in a very close orbit distance being only a quarter that of Mercury from the Sun. It is thus a so-called "hot Jupiter". The planet orbits the star every 10 days 17 hours in a very regular orbit.


[edit] References

[edit] External links

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