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angular diameter
noun
, Astronomy.
- the angle that the apparent diameter of a celestial object subtends at the eye of the observer.
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Word History and Origins
Origin of angular diameter1
First recorded in 1870–75
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Example Sentences
It appeared about fifteen degrees in angular diameter, showing that we had travelled some thirty thousand miles from it.
From Project Gutenberg
Its angular diameter at mean distance is 31′ 5″, or, say, just over ½°.
From Project Gutenberg
The constant, 220, is the reciprocal of the quotient of the angular diameter of the moon divided by 2.
From Project Gutenberg
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