HD 37124 d

HD 37124 d

Exoplanet		List of exoplanets
Parent star
Star		HD 37124
Constellation		Taurus
Right ascension	(α)	05^h 37^m 02.4864^s
Declination	(δ)	+20° 43′ 50.836″
Apparent magnitude	(mV)	7.68
Distance		107.63 ly (33.2 pc)
Spectral type		G4V
Mass	(m)	0.91 M☉
Radius	(r)	0.82 R☉
Temperature	(T)	5610 ± 70 K
Metallicity	[Fe/H]	-0.32
Age		3.33 Gyr
Orbital elements
Semi-major axis	(a)	3.19 AU
Eccentricity	(e)	0.2
Orbital period	(P)	2,295 d
Argument of periastron	(ω)	266°
Time of periastron	(T0)	2,449,606 JD
Semi-amplitude	(K)	12.2 m/s
Physical characteristics
Minimum mass	(m sin i)	0.66 MJ
Discovery information
Discovery date		24 June 2005
Discoverer(s)		Marcy et al.
Discovery method		Radial velocity
Discovery site		United States
Discovery status		Confirmed
Database references
Extrasolar Planets Encyclopaedia		data
SIMBAD		data
Exoplanet Archive		data
Open Exoplanet Catalogue		data

HD 37124 d is an extrasolar planet approximately 108 light-years away in the constellation of Taurus. The planet was discovered in 2005 orbiting the star HD 37124 in a long-period orbit. Based on its mass, it is considered to be a gas giant. An alternative solution to the radial velocities gives a period of 29.92 days and a minimum mass 17% that of Jupiter.^[1]

References

1. Vogt, Steven S.; et al. (2005). "Five New Multicomponent Planetary Systems". The Astrophysical Journal 632 (1): 638–658. Bibcode:2005ApJ...632..638V. doi:10.1086/432901.

External links

• "A dynamical analysis of the HD 37124 planetary system". CAT.INIST (in French). Retrieved 2008-06-22.
• Jianghui Ji; et al. (2003-05-23). "The Librating Companions in HD 37124, HD 12661, HD 82943, 47 Uma and GJ 876: Alignment or Antialignment?". arXiv:astro-ph/0305448.

Coordinates: 05^h 37^m 02.4864^s, +20° 43′ 50.836″