Astronomical quadrant mb-width 3790 flowers and leaves of Astragalus

flowers and leaves of Astragalus caulescens

National Discount Company's offices

The front of the car concentrating on the bumper

George Michael and Andrew Ridgeley

Buckingham Palace forecourt

Astronomical quadrant mb-width 3790 flowers and leaves of AstragalusA 12 inch astronomical quadrant made by John Bird. Astronomical quadrants were used to measure the angle of a celestial object from the zenith. Operated in conjunction with a transit instrument, they could be used to check the running rate of astronomical clocks known as regulators. At sea a quadrant can be used to help fix a ship's position and to determine latitude. ca. 1767