Azimuth-circle Definition

Azimuth-circle Sentence Examples

• In 1800 he settled at Westbury near Bristol, and began to determine star-places with a fine altitude and azimuth circle of 22 ft.

• In fact the modern equatorial, and the altitude and azimuth circle are astrolabes in the strictest and oldest meaning of the term; and Tycho in one of his astrolabes came so near the modern equatorial that it may be taken as the first of the kind.

• The two verniers on the azimuth circle having been read, the magnet is then inverted, i.e.

• The mean of all the readings of the verniers gives the reading on the azimuth circle corresponding to the magnetic meridian.

• Hence if the readings of the verniers on the azimuth circle are made when the transit is observed we can deduce the reading corresponding to the geographical meridian.