What a piece to own. Complete in original casing, this gorgeous heavy brass and copper piece is made to last. An azimuth star finder, complete with celestial charts, and all pieces working.
You could even use it when the car GPS has no signal. It still works perfectly
The azimuth of a star is how many degrees along the horizon it is and corresponds to the compass direction. Azimuth starts from exactly North = 0 degrees azimuth and increases clockwise: exactly East = 90 degrees, exactly South = 180 degrees, exactly West = 270 degrees, and exactly North = 360 degrees = 0 degrees.