Equinoctial+point
81Colure — Orange = equinoctial colure Blue = solstitial colure G = e …
82Sundial — A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style (a thin rod or a sharp, straight edge) onto a flat surface marked with lines indicating… …
83Year — A year (from Old English gēar) is the orbital period of the Earth moving around the Sun. For an observer on Earth, this corresponds to the period it takes the Sun to complete one course throughout the zodiac along the ecliptic. In astronomy, the… …
84apogee — Synonyms and related words: Earth insertion, LEM, LM, acme, all, apex, aphelion, astronomical longitude, attitude control rocket, autumnal equinox, ballistic capsule, brow, burn, cap, capstone, capsule, ceiling, celestial equator, celestial… …
85meridian — Synonyms and related words: Antarctic Zone, Arctic Circle, Arctic Zone, Frigid Zones, Lambert conformal projection, Mercator projection, Miller projection, Torrid Zone, Tropic of Cancer, Tropic of Capricorn, Variable Zones, acmatic, acme,… …
86period — Synonyms and related words: Alexandrine, Archean, Archeozoic, Cambrian, Carboniferous, Cenozoic, Comanchean, Cretaceous, Devonian, Eocene, Glacial, Holocene, Lower Cretaceous, Lower Tertiary, Mesozoic, Miocene, Mississippian, Oligocene, Paleocene …
87hauteur — (hô teur) s. f. 1° Dimension d un corps considéré du bas à son sommet. Cet animal a trois pieds et demi de hauteur. La hauteur de la marée. Les eaux atteignirent une hauteur considérable. • En Grèce, M. Bernoulli a déterminé la hauteur de l… …
88Precession (astronomy) — In astronomy, precession refers to the movement of the rotational axis of a body, such as a planet, with respect to inertial space. In particular, it refers to the precession of the Earth s rotational axis, also called the precession of the… …
89Alexander von Humboldt — Infobox Scientist name = Alexander von Humboldt box width = image size =250px caption = Alexander von Humboldt, painting by Joseph Stieler, 1843 birth date = September 14, 1769 birth place = Berlin death date = May 6, 1859 death place = residence …
90year — /year/, n. 1. a period of 365 or 366 days, in the Gregorian calendar, divided into 12 calendar months, now reckoned as beginning Jan. 1 and ending Dec. 31 (calendar year or civil year). Cf. common year, leap year. 2. a period of approximately the …
