HR 4587
Encyclopedia
HR 4587 has been studied at length by S. Feltzing and G. Gonzalez in their study of the metallicity
of stars. It has an as-yet-unconfirmed planet
, HD 104304b, discovered in 2007, which is believed to have a mass
of 17.2 Jupiter
s and an orbital period
of 2752 days http://exoplanet.eu/planet.php?p1=HD+104304&p2=b at an eccentricity
of 0.38.
Metallicity
In astronomy and physical cosmology, the metallicity of an object is the proportion of its matter made up of chemical elements other than hydrogen and helium...
of stars. It has an as-yet-unconfirmed planet
Planet
A planet is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.The term planet is ancient, with ties to history, science,...
, HD 104304b, discovered in 2007, which is believed to have a mass
Mass
Mass can be defined as a quantitive measure of the resistance an object has to change in its velocity.In physics, mass commonly refers to any of the following three properties of matter, which have been shown experimentally to be equivalent:...
of 17.2 Jupiter
Jupiter
Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with mass one-thousandth that of the Sun but is two and a half times the mass of all the other planets in our Solar System combined. Jupiter is classified as a gas giant along with Saturn,...
s and an orbital period
Orbital period
The orbital period is the time taken for a given object to make one complete orbit about another object.When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars.There are several kinds of...
of 2752 days http://exoplanet.eu/planet.php?p1=HD+104304&p2=b at an eccentricity
Orbital eccentricity
The orbital eccentricity of an astronomical body is the amount by which its orbit deviates from a perfect circle, where 0 is perfectly circular, and 1.0 is a parabola, and no longer a closed orbit...
of 0.38.