relative concentration of particles in the planetary atmosphere

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• Atmosphere of Uranus — The atmosphere of Uranus, like that of Neptune, is markedly different from those of the larger gas giants, Jupiter and Saturn. While still composed primarily of hydrogen and helium, it possesses a higher proportion of volatiles (dubbed ices )… …   Wikipedia

• atmosphere — atmosphereless, adj. /at meuhs fear /, n., v., atmosphered, atmosphering. n. 1. the gaseous envelope surrounding the earth; the air. 2. this medium at a given place. 3. Astron. the gaseous envelope surrounding a heavenly body. 4. Chem. any… …   Universalium

• Atmosphere of Jupiter — Cloud pattern on Jupiter in 2000 The atmosphere of Jupiter is the largest planetary atmosphere in the Solar System. It is mostly made of molecular hydrogen and helium in roughly solar proportions; other chemical compounds are present only in… …   Wikipedia

• atmosphere, evolution of — Introduction  the development of Earth s (Earth) atmosphere across geologic time. The process by which the current atmosphere arose from earlier conditions is complex; however, evidence related to the evolution of Earth s atmosphere, though… …   Universalium

• Atmosphere of Mars — Chemical species mole fraction Carbon dioxide 95.32% Nitrogen 2.7% Argon …   Wikipedia

• Atmosphere of Mercury — Atmosphere of Mercury[1] Species CD,[n 1] cm−2 SD,[n 2] cm−3 …   Wikipedia

• относительная концентрация частиц в атмосфере планеты — относительная концентрация Отношение концентрации частиц данного вида к сумме концентраций всех частиц в атмосфере планеты. [ГОСТ 25645.143 84] Тематики атмосферы планет Синонимы относительная концентрация EN relative concentration of particles… …   Справочник технического переводчика

• History of the Earth — For the history of modern humans, see History of the world. Geological time put in a diagram called a geological clock, showing the relative lengths of the eons of the Earth s history The history of the Earth describes the most important events… …   Wikipedia

• Age of the Earth — This article is about scientific estimates of the age of the Earth. For religious and other non scientific estimates, see Dating Creation. Earth as seen from Apollo 17 The age of the Earth is 4.54 billion years (4.54 × 109 years ± 1%) …   Wikipedia

• solar system — the sun together with all the planets and other bodies that revolve around it. [1695 1705] * * * The Sun, its planets, and the small bodies (see asteroid, Centaur object, comet, Kuiper belt, meteorite, and Oort cloud) interplanetary dust and gas… …   Universalium

• Tunguska event — The Tunguska Event, or Tunguska explosion, was a powerful explosion that occurred near the Podkamennaya (Lower Stony) Tunguska River in what is now Krasnoyarsk Krai of Russia, at around 7:14 a.m. [P. Farinella, L. Foschini, Ch. Froeschl eacute;,… …   Wikipedia