celestial orientation

См. также в других словарях:

• Celestial coordinate system — For other uses of Celestial , see Celestial (disambiguation). Orientation of Astronomical Coordinates Orientation of the galactic, ecliptic and equatorial coordinate systems, projected on the celestial sphere, showing the galactic equator (black) …   Wikipedia

• celestial mechanics — the branch of astronomy that deals with the application of the laws of dynamics and Newton s law of gravitation to the motions of heavenly bodies. [1815 25] * * * Branch of astronomy that deals with the mathematical theory of the motions of… …   Universalium

• celestial navigation — Synonyms and related words: VAR, aspect, astronavigation, attitude, automatic electronic navigation, azimuth, bearing, bearings, chronometer, coastwise navigation, consolan, dead reckoning, electronic navigation, exposure, fix, frontage, lay, lie …   Moby Thesaurus

• orientation — Synonyms and related words: acclimation, acclimatization, accommodation, accustoming, adaptation, adaption, adjustment, aim, alignment, arrangement, aspect, assimilation, attitude, azimuth, bearing, bearings, bent, breaking, breaking in, briefing …   Moby Thesaurus

• International Celestial Reference System — L ICRS, pour International Celestial Reference System (système de référence céleste international), est un ensemble de conventions adoptées par l Union astronomique internationale pour normaliser le système de coordonnées équatoriales. Il défini… …   Wikipédia en Français

• International Celestial Reference Frame — The International Celestial Reference Frame (ICRF) is a quasi inertial reference frame centered at the barycenter of the Solar System, defined by the measured positions of 212 extragalactic sources (mainly quasars). Although relativity implies… …   Wikipedia

• Homing (biology) — Homing is the inherent ability of an animal to navigate towards an original location through unfamiliar areas. This location can may be either a home territory, or a breeding spot.UsesHoming abilities can be used to find the way back to home in a …   Wikipedia

• avoidance behaviour — Type of activity, exhibited by animals exposed to adverse stimuli, in which the tendency to flee or to act defensively is stronger than the tendency to attack. Vision is the sense that most often produces avoidance behaviour (e.g., small birds… …   Universalium

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• Talitrus saltator — Puce de mer Talitrus sa …   Wikipédia en Français

• Indigo Bunting — Male (above), female (below) Conservation status …   Wikipedia