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Hasil cari dari kata atau frase: Heliometer (0.00766 detik)
Found 1 items, similar to Heliometer.
English → English
, n. [Helio- + -meter: cf. F.
An instrument devised originally for measuring the diameter
of the sun; now employed for delicate measurements of the
distance and relative direction of two stars too far apart to
be easily measured in the field of view of an ordinary