Astronomical timepiece

Details Astronomical timepiece Astronomical timepiece

1977-10-03

1979-01-23

Stephan, Steven L.

Boots, shoes, and leggings

33 1H, 33 1DD, 33269, 58 3, 356152, G06F 1520, G04B 1926, G01C 100

Patent

active

041363973

ABSTRACT:
A method and apparatus for determining local solar time for virtually any location on any planet having a radiating sun, wherein the method requires minimal a prior knowledge of the planet's major characteristics and the apparatus is organized so as to permit completely automatic determination of the key parameters from which the time calculation is derived. Advantageously, the time determination is accomplished using a formulation of the time equation which depends on two key solid angles initially obtainable any time the planet's sun is reasonably high above the horizon. Additionally, methods are outlined which permit the apparatus to provide basic navigational data, such as latitude and longitude locations (for other than extreme polar positions) of the timepiece.

REFERENCES:
patent: 3480779 (1969-11-01), Hand
patent: 3940859 (1976-03-01), Troseth
patent: 3996460 (1976-12-01), Smith

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