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Astronomical Phenomena

Categorical breakdown of terms falling inder the category of Astronomical Phenomena. Sub categories will become more specific in nature to the terms listed for Astronomical Phenomena.

Sub-Categories

Terms

Astronomical Objects - Aggregates of matter in outer space....

Astronomical Phenomena - Aggregates of matter in outer space, such as stars, planets, comets, etc. and the properties and pro...

Astronomical Processes - The behavior and interactions of matter and energy in outer space....

Cosmic Dust - Finely divided solid matter with particle sizes smaller than a micrometeorite, thus with diameters m...

Cosmic Radiation - High-energy radiation or particles from extraterrestrial space that strike the earth, its atmosphere...

Earth (Planet) - Planet that is the third in order from the sun. It is one of the four inner or terrestrial planets o...

Evolution, Chemical - Chemical and physical transformation of the biogenic elements from their nucleosynthesis in stars to...

Evolution, Planetary - Creation and development of bodies within solar systems, includes study of early planetary geology....

Extraterrestrial Environment - The environment outside the earth or its atmosphere. The environment may refer to a closed cabin (su...

Galaxies - Large aggregates of CELESTIAL STARS; COSMIC DUST; and gas. (From McGraw Hill Dictionary of Scientifi...

Jupiter - The fifth planet in order from the sun. It is one of the five outer planets of the solar system. Its...

Mars - The fourth planet in order from the sun. Its two natural satellites are Deimos and Phobos. It is one...

Mercury (Planet) - The first planet in order from the sun. It has no known natural satellites. It is one of the four in...

Meteoroids - Any solid objects moving in interplanetary space that are smaller than a planet or asteroid but larg...

Minor Planets - Small solar system planetary bodies including asteroids. Most asteroids are found within the gap lyi...

Moon - The natural satellite of the planet Earth. It includes the lunar cycles or phases, the lunar month, ...

Neptune - The eighth planet in order from the sun. It is one of the five outer planets of the solar system. It...

Planets - Heavenly bodies with their own motion among the stars, revolving, in the case of the solar system, a...

Planets - Heavenly bodies with their own motion among the stars, revolving, in the case of the solar system, a...

Pluto - The ninth planet in order from the sun. It is one of the five outer planets of the solar system. Its...

Saturn - The sixth planet in order from the sun. It is one of the five outer planets of the solar system. Its...

Solar Activity - Any type of variation in the appearance of energy output of the sun. (NASA Thesaurus, 1994)...

Solar System - The group of celestial bodies, including the EARTH, orbiting around and gravitationally bound by the...

Stars, Celestial - Large bodies consisting of self-luminous gas held together by their own gravity. (From McGraw Hill ...

Uranus - The seventh planet in order from the sun. It is one of the five outer planets of the solar system. I...

Venus - The second planet in order from the sun. It has no known natural satellites. It is one of the four i...