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Glossary of Astronomy Terms
beginning with letter V
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variable Tweet Definition of variable Like Definition of variable on Facebook
noun
  1. something that is
    1. Adjective, variable
    2. something whose value may be dictated or discovered
    There are several variables to consider here.
    1. (mathematics) a quantity that may assume any one of a set of values
    2. (mathematics) a symbol representing a variable
    3. (complang) a named memory location in which a program can store intermediate results and from which it can read it them
    4. (astronomy) a variable star
adjective
  1. able to vary
  2. likely to vary
  3. marked by diversity or difference
  4. (math) having no fixed quantitative value
  5. (biology) tending to deviate from a normal or recognized type
variation Tweet Definition of variation Like Definition of variation on Facebook
noun
  1. A distinct group of objects or things
  2. (nautical) The angular difference at the vessel between the direction of true north and magnetic north. Also called magnetic declination.
  1. (board games) a line of play that differs from the original
Vega Tweet Definition of Vega Like Definition of Vega on Facebook
proper noun
  1. (star) The brightest star in the constellation Lyra; Alpha (~+mn~) Lyrae. It forms one corner of the Summer Triangle.
Venus Tweet Definition of Venus Like Definition of Venus on Facebook
proper noun
  1. (Roman mythology) the goddess of love, beauty, and natural productivity
  2. The second planet in our solar system, named for the goddess; represented in astronomy and astrology by ™€.
Venusian Tweet Definition of Venusian Like Definition of Venusian on Facebook
noun ((plural) Venusians)
  1. (science fiction) An imaginary inhabitant of the planet Venus.
adjective (no comparative or superlative)
  1. Of or relating to the planet Venus.
the landscape
  1. Of or relating to Venusians.
a invasion
vernal equinox Tweet Definition of vernal equinox Like Definition of vernal equinox on Facebook
noun
  1. the moment when the sun appears to cross the celestial equator, heading northward
  2. the point where the ecliptic intersects the celestial equator at that time
Virgo Tweet Definition of Virgo Like Definition of Virgo on Facebook
proper noun
  1. (constellation): One of the twelve zodiac constellations, supposedly shaped like a maiden. It contains the bright binary star Spica.
Vulcan Tweet Definition of Vulcan Like Definition of Vulcan on Facebook
proper noun
  1. (context, Roman mythology) The god of volcanoes and fire, especially the forge, also the patron of all craftsmen, principally blacksmiths.
''The goddess Venus was the wife of .
  1. (astronomy, historical) A theoretical planet proposed to exist in an orbit between Mercury and the Sun in a 19th-century hypothesis.
  2. (science fiction) A fictional planet in the w:Star Trek, Star Trek universe.
  3. (science fiction) A member of the humanoid race inhabiting the fictional planet Vulcan; the race is noted for lack of emotion and adherence to logic.
  4. (science fiction) The language spoken by these humanoids.
  5. (slang) (pejorative) A person who seems to lack emotion or is overly analytical and boring.
  6. A town in southern Alberta, Canada.

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