Marine Nautical sextant brass made 40mm with light IMPA Code 370332

Marine Nautical sextant is a kind of reflection type angular measuring optical instrument, chiefly used for measuring the altitude of celestial bodies to obtain a position in navigation. The VERTICAL ERROR, ERROR and INDEX ERROR of the instrument should be adjusted and predeter mined before use.

 
Application:

1.Measuring the altitude of celestial bodies to determine the position of the ship at sea.               
2.Measuring the two horizontal angles between three known position land objects the ship.        
3.location on chart by the help of a station pointer.    
4.Measuring the vertical angle of a known altitude objection to obtain its distance.

Features:

1. Reasonable price and fine workmanship
2. Made of copper
3.  IMPA Code: 370332

Tech. Data:

Below Included:

Sextant frame

monocular telescope

standby bellows

spare bulb

calibration wrench

oil pot

screw whorls

brush

flannelette

instruction manual

certification

nautical sextants

impa :  370331-370334

1. nautical sextants
2. a sextant is an instrument for measuring the angle between two objects by bringing into coincidence to the eye of the observer,  

    rays of light received directly from one object and reflected directly from the other .

3. its principal use is to measure the altitudes of celestial bodies above the visible sea horizon. available in variors types.

4. when ordering, specify telescope (magnifying & lens diameter)and whether the sextant should be with or without illumination.

    furnished with a wooden or plastic case. 370332 will be sent by default.