altazimuth

/al-taz-uh-muhth/US // ælˈtæz ə məθ //UK // (ælˈtæzɪməθ) //

阿尔塔齐玛斯,阿尔塔齐玛特,阿尔塔齐姆斯,阿尔泰兹穆斯

Definitions

n.名词 noun

1
Astronomy.
- : an instrument for determining both the altitude and the azimuth of a heavenly body.

It resembles an astronomical altazimuth, but instead of a telescope it carries an open tube without any lenses.
The altazimuth can thus determine the altitude and azimuth of objects, hence the name.
On his return home he settled at Westbury, where he erected an altazimuth by Troughton, with a two-and-a-half-foot circle.
This pillar is the support of Airy's altazimuth, and very nearly marks the place where Flamsteed set up his original sextant.
The third day he had a full day's work on the calculations, followed by a night duty with the altazimuth.