HD 37124 d
Encyclopedia
HD 37124 d is an extrasolar planet
approximately 108 light-year
s 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.
Extrasolar planet
An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars...
approximately 108 light-year
Light-year
A light-year, also light year or lightyear is a unit of length, equal to just under 10 trillion kilometres...
s away in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
of Taurus
Taurus (constellation)
Taurus is one of the constellations of the zodiac. Its name is a Latin word meaning 'bull', and its astrological symbol is a stylized bull's head:...
. The planet was discovered in 2005 orbiting the star HD 37124
HD 37124
HD 37124 is a yellow dwarf star approximately 110 light-years away in the constellation of Taurus . As of 2005, three extrasolar planets have been confirmed to orbit the star. This system is currently one of the only that contains multiple planet that are not hot Jupiters and are either near or...
in a long-period orbit. Based on its mass, it is considered to be a gas giant
Gas giant
A gas giant is a large planet that is not primarily composed of rock or other solid matter. There are four gas giants in the Solar System: Jupiter, Saturn, Uranus, and Neptune...
. An alternative solution to the radial velocities
Radial velocity
Radial velocity is the velocity of an object in the direction of the line of sight . In astronomy, radial velocity most commonly refers to the spectroscopic radial velocity...
gives a period of 29.92 days and a minimum mass 17% that of Jupiter.