Search for crossword answers and clues
The apparent radius of a celestial body when viewed as a disc from the earth
Answer for the clue "The apparent radius of a celestial body when viewed as a disc from the earth ", 12 letters:
semidiameter
Word definitions for semidiameter in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Semidiameter \Sem`i*di*am"e*ter\, n. (Math.) Half of a diameter; a right line, or the length of a right line, drawn from the center of a circle, a sphere, or other curved figure, to its circumference or periphery; a radius.
Wiktionary
Word definitions in Wiktionary
n. 1 (context astronomy English) The apparent radius of a star etc, when viewed from Earth. 2 (context archaic English) A radius: half of a diameter.
Wikipedia
Word definitions in Wikipedia
In geometry , the semidiameter or semi-diameter of a set of points may be one half of its diameter ; or, sometimes, one half of its extent along a particular direction.
WordNet
Word definitions in WordNet
n. the apparent radius of a celestial body when viewed as a disc from the earth
Usage examples of semidiameter.
And no mean Observations hereof there is in the Mathematicks of the neatest Retiary Spider, which concluding in fourty-four Circles, from five Semidiameters beginneth that elegant texture.