- celestial navigation system
- астронавигационная система
Англо-русский словарь промышленной и научной лексики. 2014.
celestial navigation system
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Celestial navigation — Celestial navigation, also known as astronavigation, is a position fixing technique that was devised to help sailors cross the featureless oceans without having to rely on dead reckoning to enable them to strike land. Celestial navigation uses… … Wikipedia
Celestial mechanics — is the branch of astrophysics that deals with the motions of celestial objects. The field applies principles of physics, historically classical mechanics, to astronomical objects such as stars and planets to produce ephemeris data. Orbital… … Wikipedia
Celestial sphere — [ celestial equator.] In astronomy and navigation, the celestial sphere is an imaginary rotating sphere of gigantic radius , concentric and coaxial with the Earth. All objects in the sky can be thought of as lying upon the sphere. Projected from… … Wikipedia
Navigation — This article is about determination of position and direction on or above the surface of the earth. For other uses, see Navigation (disambiguation). Table of geography, hydrography, and navigation, from the 1728 Cyclopaedia. Navigation is the… … Wikipedia
navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… … Universalium
Celestial pole — The north and south celestial poles and their relation to axis of rotation, plane of orbit and axial tilt … Wikipedia
celestial guidance — noun a method of controlling the flight of a missile or spacecraft by reference to the positions of celestial bodies • Hypernyms: ↑steering, ↑guidance, ↑direction * * * a guidance system for an aeronautical or space vehicle by which an automatic… … Useful english dictionary
celestial guidance — a guidance system for an aeronautical or space vehicle by which an automatic device in the vehicle takes periodic fixes on celestial bodies to determine the vehicle s position and to guide it along a particular flight path. Also called astro… … Universalium
rocket and missile system — ▪ weapons system Introduction any of a variety of weapons systems that deliver explosive warheads to their targets by means of rocket propulsion. Rocket is a general term used broadly to describe a variety of jet propelled missiles… … Universalium
List of selected stars for navigation — The selected stars for navigation are often used for sextant observations. Fifty eight selected navigational stars are given a special status in the field of celestial navigation. Of the approximately 6,000 stars visible to the naked eye under… … Wikipedia
History of navigation — In the pre modern history of human migration and discovery of new lands by navigating the oceans, a few peoples have excelled as sea faring explorers. Prominent examples are the Phoenicians, the ancient Greeks, the Persians, the Arabians, the… … Wikipedia
