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1-14 of 14 possibilities

yearly publication of general information, especially astronomical and weather almanac
astronomical altar ara
model, old astronomical armillary sphere
linear unit used for astronomical distances astronomy unit
(astronomy) Copernicus' astronomical model in which the Earth rotates around the sun Copernican system
annual publication containing astronomical tables that give the positions of the celestial bodies throughout the year ephemeris
law stating that the ratio of the square of the revolutionary period (in years) to the cube of the orbital axis (in astronomical units) is the same for all planets harmonic law , Kepler's third law
building designed and equipped to observe astronomical phenomena observatory
astronomical telescope designed to collect and record light from cosmic sources optical telescope
unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years parsec , secpar
optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome planetarium
astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extraterrestrial sources radio reflector , radio telescope
angle subtended by the mean equatorial radius of the Earth at a distance of one astronomical unit solar parallax
astronomical alignment of three celestial bodies syzygy
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