Octant

Octant

Producer: 
Hemisferium
Design: 
Historical
Display: 
Altitude
Material: 
Brass coated, wood
Dimensions: 
B280mm x H340 x T70mm
Weight: 
0,65kg
Product: 
Finely crafted instrument in stately size, which serves to determine the position from the Sun and the stars
Price:
179,90 € incl. VAT
 
available from stock
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  • 2 weeks statutory right of return (customised products excluded)
  • Hotline: +49-611-185 11 06

Description

Historical octant from the middle of the 17th century. A finely crafted instrument of wood and brass in stately size, which serves to determine the position from the Sun and the stars.

The octant is the predecessor of the modern sextant. It sits on an eighth circle, okta is the Greek prefix for 8. The mirror doubles the angle, so that a large measuring range of 90° is available. A vernier allows measurements with a resolution of 10 arc minutes. The development came from the English astronomer and mathematician John Hadley and his brothers George and Henry and was introduced to the Royal Society in London in 1731.

Delivery in a presentation box with a user manual in 4 languages (English, French, Italian, Spanish).

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