HD 222582 b
Encyclopedia
HD 222582 b is an extrasolar planet
over 7 times the mass of Jupiter
orbiting the star
HD 222582
. The orbital period
is 572 day
s and orbits at a semimajor axis of 1.35 AU
in one of the most eccentric orbits of any known planets.
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,...
over 7 times the mass of 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,...
orbiting the star
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...
HD 222582
HD 222582
|- style="background-color: #A0B0FF;" colspan="3"| Planet|- bgcolor="#FFFAFA"| HD 222582 b || |- bgcolor="#FFFAFA"| || HD 222582 is a magnitude 7.7 star approximately 137 light-years away in the constellation of Aquarius...
. The 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...
is 572 day
Day
A day is a unit of time, commonly defined as an interval equal to 24 hours. It also can mean that portion of the full day during which a location is illuminated by the light of the sun...
s and orbits at a semimajor axis of 1.35 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....
in one of the most eccentric orbits of any known planets.