A secondary atmosphere is an atmosphere of a planet that did not form by accretion during the formation of the planet's sun. View of Jupiters active atmosphere, including the Great Red Spot. ... The eight planets and three dwarf planets of the Solar System. ... Artists conception of a binary star system with one black hole and one main sequence star An accretion disc (or accretion disk) is a structure formed by material falling into a gravitational source. ... The Pleiades, an open cluster of stars in the constellation of Taurus. ...

A secondary atmosphere instead forms from internal volcanic activity, or by accumulation of material from comet impacts. Volcano 1. ... A comet is a small body in the solar system that orbits the Sun and (at least occasionally) exhibits a coma (or atmosphere) and/or a tail â€” both primarily from the effects of solar radiation upon the comets nucleus, which itself is a minor body composed of rock, dust...

Earth has a secondary atmosphere. It is characteristic of terrestrial planets, such as Mercury, Venus and Mars, to have a secondary atmosphere. Compare primary atmosphere. Earth (IPA: , often referred to as the Earth, Terra, the World or Planet Earth) is the third planet in the solar system in terms of distance from the Sun, and the fifth largest. ... The inner planets, their sizes to scale. ... Look up Mercury in Wiktionary, the free dictionary. ... Adjective Venusian or (rarely) Cytherean (*min temperature refers to cloud tops only) Atmospheric characteristics Atmospheric pressure 9. ... Note: This article contains special characters. ... A primary atmosphere is an atmosphere of a planet that forms by accretion of gaseous matter from the accretion disc of the planets sun. ...

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