Planetary system

Heliocentric model of the Solar System in Copernicus' manuscript

An artist's concept of a protoplanetary disk

The three known planets of the star HR8799, as imaged by the Hale Telescope. The light from the central star was blanked out by a vector vortex coronagraph.

A planetary system is a set of gravitationally bound non-stellar objects in orbit around a star or star system. Generally speaking, systems with one or more planets constitute a planetary system, although such systems may also consist of bodies such as dwarf planets, asteroids, natural satellites, meteoroids, comets, planetesimals and circumstellar disks. The Sun together with its planetary system, which includes Earth, is known as the Solar System. The term exoplanetary system is sometimes used in reference to other planetary systems.

单词	Venus zone
释义	Venus zone 英语百科 Planetary system A planetary system is a set of gravitationally bound non-stellar objects in orbit around a star or star system. Generally speaking, systems with one or more planets constitute a planetary system, although such systems may also consist of bodies such as dwarf planets, asteroids, natural satellites, meteoroids, comets, planetesimals and circumstellar disks. The Sun together with its planetary system, which includes Earth, is known as the Solar System. The term exoplanetary system is sometimes used in reference to other planetary systems.
随便看	alphablocking effect的意思 alpha bombardment的意思 Alpha Bootis的意思 alpha branch的意思 alpha branching的意思 Alpha brass的意思 Alpha brass alloys的意思 alpha brasses的意思 ALPHA BROMO PHENYL ACETATE的意思 ALPHA BROMO PHENYL ACETIC ACID的意思 Alpha bronze的意思 alpha bronzes的意思 Alpha Buffer的意思 Alpha Bungarotoxin的意思 alpha burst detector的意思 alpha calcidol的意思 alpha calcitonin gene related peptide的意思 alpha calibration的意思 Alpha Canis Majoris的意思 Alpha Canis Minoris的意思 alpha capacity的意思 alpha capture的意思 alphacarbon的意思 Alpha carbon的意思 alpha carbon atom的意思

Venus zone

Planetary system