Astronomy

Astronomy

The scientific study of planets, stars, black holes, comets and other celestial bodies that make up outer space.

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Astronomy > Planetology

empirical astronomy

Astronomy; Planetology

Astronomical study that is based on data acquired through the use of direct observation of stellar bodies.

habitable zone

Astronomy; Planetology

The scientific term for the region around a star within which it is theoretically possible for a planet with sufficient atmospheric pressure to maintain liquid water on its ...

orbital period

Astronomy; Planetology

The time taken for a given object to make one complete orbit about another object, generally referring to the sidereal period of an astronomical object, which is calculated with ...

light-year

Astronomy; Planetology

A unit of length equal to just under 10 trillion kilometres (or about 6 trillion miles), the distance that light travels in a vacuum in one Julian year.

Gliese 832 c

Astronomy; Planetology

Gliese 832 c (also known as Gl 832 c or GJ 832 c) is an extrasolar planet located approximately 16 light-years away in the constellation of Grus, orbiting the star Gliese 832, a ...