astronomical triangle


noun

the spherical triangle formed by the great circles connecting a celestial object, the zenith, and the celestial pole.

Nearby words

  1. astronomical clock,
  2. astronomical distance,
  3. astronomical frame of reference,
  4. astronomical refraction,
  5. astronomical telescope,
  6. astronomical twilight,
  7. astronomical unit,
  8. astronomical year,
  9. astronomy,
  10. astrophotography

Origin of astronomical triangle

First recorded in 1915–20

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019