Sextant in Teak box
Brass and Copper Sextant
Birthday Gift idea 101.
This reproduction Brass and copper sextant is calibrated for use immediately you get your hands on it.
Not much has changed in the design of this beautiful instrument since it was conceived by Galileo
An astronomer might use a sextant or quadrant to measure the distance between a planet and a notable bright star, or the altitude of a star above the horizon. A quadrant measures up to 90 degree angular separation (one fourth or quadrant of a circle), while a sextant measures up to 60 degree (one sixth of a circle). And thats just the start of the learning curve.