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視直径 (しちょっけい) Japanese meaning | Kotomora

視し直ちょっ径けい

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Meanings

1

apparent diameter

Astronomical term for the angular diameter of a celestial body as seen from Earth.

月つきの視し直ちょっ径けいは約やく0.5度どです。

Kanji

視inspection, regard as, see
直straightaway, honesty, frankness
径diameter, path, method

Related words

角かく直ちょっ径けい
角直径 is a more general term for angular diameter, while 視直径 specifically refers to the apparent diameter as observed from Earth.

Etymology

The apparent diameter of the moon is about 0.5 degrees.

Compound of 視 (visual, apparent) and 直径 (diameter), a straightforward technical term.