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conjunction



  1. opposition and conjunction
    (ASTRONOMY) An inferior planet is in inferior conjunction when it is directly between Earth and the Sun. It is in superior conjunction when it is on the opposite side of the Sun from Earth. A superior planet is in conjunction when it is on the opposite side of the Sun from Earth. A superior planet cannot have an inferior conjunction. When Earth is at inferior conjunction with respect to a superior planet that planet is in opposition from Earth's perspective.

  2. (LOGIC) The assertion that two statements are both true. For statements a and b, this is written A Λ B, read "a is true and b is true." See also disjunction.

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   • CELESTIAL MECHANICS
   • LOGIC