Astronavigation
.
noun
another term for celestial navigation
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the chief astronomer of england, appointed by the british crown. the chief astronomer of scotland, director of the royal edinburgh observatory. historical examples he was the astronomer royal and first head of this observatory. a budget of paradoxes, volume i (of ii) augustus de morgan as well appoint an astronomer royal to command an atlantic […]
- Astronomical clock
a clock indicating or representing the movements of the sun or planets, the phases of the moon, or the sky visible at a given time, used as a means of establishing time or for additional information, as locating celestial bodies or timing their movement. a clock used for observing the apparent time of the meridian […]
- Astronomical distance
the distance from one celestial body to another, measured in astronomical units, light-years, or p-rs-cs.
- Astronomical frame of reference
a frame of reference in which the sun or center of m-ss of the universe is fixed and which does not rotate with respect to the fixed stars.
- Astronomical refraction
(def 3).