Octant, late 18th century.

Octant, late 18th century.
4 0 c m
actual image size: 26cm x 32cm


Navigational reflecting instrument in bras with ebony divided on ivory, made by Watkins of Charing Cros, London. An octant is used in surveying and in navigation to measure the angle between two objects. Octants were used by navigators to determine a ship's latitude by measuring the angle between the horizon and a celestial body, such as the Sun.

Image Details

Image Ref.

© Science Museum / Science & Society Picture Library

buy a print

Select size
Select finish
How many prints?

buy a framed print

buy a canvas

buy a framed canvas