Equinoctial
121Leap year — A leap year (or intercalary year) is a year containing one or more extra days (or, in the case of lunisolar calendars, an extra month) in order to keep the calendar year synchronised with the astronomical or seasonal year. For example, in the… …
122Alexander 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 …
123Precession (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… …
124Friedrich Wilhelm Heinrich Alexander Freiherr von Humboldt — Alexander von Humboldt Gemälde von Joseph Stieler, 1843 Friedrich Wilhelm Heinrich Alexander von Humboldt (* 14. September 1769 in Berlin; † 6. Mai 1859 ebenda) war ein deutscher Naturforscher von Weltgeltung und Mitbegründer der Geographie als… …
125Friedrich Wilhelm Heinrich Alexander von Humboldt — Alexander von Humboldt Gemälde von Joseph Stieler, 1843 Friedrich Wilhelm Heinrich Alexander von Humboldt (* 14. September 1769 in Berlin; † 6. Mai 1859 ebenda) war ein deutscher Naturforscher von Weltgeltung und Mitbegründer der Geographie als… …
126celestialequator — celestial equator n. A great circle on the celestial sphere in the same plane as the earth s equator. Also called equinoctial, equinoctial circle. * * * …
127year — /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 …
128hauteur — (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… …
