- galactic year
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the duration of a complete rotation of the Milky Way, approximately 200 million years.
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Universalium. 2010.
galactic year
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Galactic year — The galactic year, also known as a cosmic year, is the duration of time required for the solar system to orbit once around the center of the Milky Way galaxy. [http://www.csi.uottawa.ca:4321/astronomy/index.html#cosmicyear Astronomy Knowledge… … Wikipedia
galactic year — the unit of time in which the Solar System makes one revolution around the center of the Milky Way galaxy. The galactic year is estimated to be about 225 million ordinary years. The age of the Solar System is about 20 galactic years … Dictionary of units of measurement
galactic year — /gəˌlæktɪk ˈjɪə/ (say guh.laktik year) noun the time which it takes the Milky Way to make one complete rotation (about 200 million years) …
galactic year — noun a) the time it takes for the Solar System to orbit around the center of the Milky Way Galaxy, estimated to be from 225 to 250 million years. b) by extension, the time it takes a celestial body to complete a quasi orbit in a galaxy … Wiktionary
galactic year — Astron. the duration of a complete rotation of the Milky Way, approximately 200 million years … Useful english dictionary
Year — A year (from Old English gēar) is the orbital period of the Earth moving around the Sun. For an observer on Earth, this corresponds to the period it takes the Sun to complete one course throughout the zodiac along the ecliptic. In astronomy, the… … Wikipedia
Galactic Empire (Star Wars) — Galactic Empire Emblem of the Galactic Empire Form of Government Absolute monarchy de facto Totalitarian … Wikipedia
Galactic empire — Galactic empires are a common theme in science fiction. Many authors have either used a galaxy spanning empire as background, or written about the growth or decline of such an empire. The capital of a galactic empire is frequently a core world or … Wikipedia
Galactic Civilizations II: Dark Avatar — Developer(s) Stardock Publisher(s) … Wikipedia
Galactic tide — A galactic tide is a tidal force subjected on objects by the gravitational field of a galaxy such as the Milky Way. Particular areas of interest concerning galactic tides include galactic collisions, the disruption of dwarf or satellite galaxies … Wikipedia
