HD 23596 b

HD 23596 b
Exoplanet List of exoplanets
Parent star
Star HD 23596
Constellation Perseus
Right ascension (α) 03h 48m 00.3739s
Declination (δ) +40° 31′ 50.287″
Apparent magnitude (mV) 7.24
Distance170 ly
(52 pc)
Spectral type F8
Orbital elements
Semi-major axis(a) 2.83 AU
(423 Gm)
    54.4 mas
Periastron (q) 2.00 AU
(300 Gm)
Apastron (Q) 3.66 AU
(547 Gm)
Eccentricity (e) 0.292 ± 0.023
Orbital period(P) 1565 ± 21 d
(4.285 y)
Argument of
periastron		 (ω) 274.1 ± 3.9°
Time of periastron (T0) 2,451,604 ± 15 JD
Semi-amplitude (K) 124.0 ± 3.0 m/s
Physical characteristics
Minimum mass(m sin i)7.80 ± 0.35 MJ
Discovery information
Discovery date June 2002
Discoverer(s) Perrier et al.
Discovery method radial velocity
Discovery site France Haute-Provence Observatory
Discovery status Published

HD 23596 b is an exoplanet approximately 170 light years away in the constellation Perseus. The planet is very massive, at least 7.8 times that of Jupiter, classifying as mid-superjovian. Based on its mass, the planet would probably be a gas giant with no solid surface. The planet orbits at the average distance of 2.83 AU, taking 1565 days to complete its orbit with average velocity of 19.7 km/s. The eccentricity of the planet’s orbit is higher than all the planets in the Solar System, bringing as close as 2.00 AU to as far as 3.66 AU from the parent star.[1]

The planet was discovered by Perrier et al. in 2002 using his radial velocity technique to look for changes in inward (blue-shifting) and outward (red-shifting) radial stellar motion in the sky.[1]

References

External links

Coordinates: 03h 48m 00.3739s, +40° 31′ 50.287″


This article is issued from Wikipedia - version of the 4/17/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.