intersection+of+the+equator+and+the+ecliptic
31first point of Libra — The intersection of celestial equator and ecliptic passed by the sun in autumn in the northern hemisphere, now actually in Virgo • • • Main Entry: ↑Libra …
32celestial 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… …
33Orbital node — The ascending node. An orbital node is one of the two points where an orbit crosses a plane of reference to which it is inclined.[1] An orbit which is contained in the plane of reference (called non inclined) has no nodes …
34celestial sphere — the imaginary spherical shell formed by the sky, usually represented as an infinite sphere, the center of which is a given observer s position. [1875 80] * * * Apparent surface of the heavens, on which the stars seem to be fixed. For the purpose… …
35Longitude — For Dava Sobel s book about John Harrison, see Longitude (book). For the adaptation of Sobel s book, see Longitude (TV series). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are… …
36Equinox — This article is about the astronomical event when the sun is at zenith over the Equator. For other uses, see Equinox (disambiguation). For the same event happening on other planets and setting up a celestial coordinate system, see Equinox… …
37Celestial meridiator — is a vertical imaginary line that goes over the celestial poles and crosses (perpendicular to) the celestial equator. There are two celestial meridiators on the celestial sphere: Equinox meridiator and Solstice meridiator.NameThe meridiators are… …
38Horoscope — In astrology, a horoscope is a chart or diagram representing the positions of the Sun, Moon, planets, the astrological aspects, and sensitive angles at the time of an event, such as the moment of a person s birth. The word horoscope is derived… …
39Latitude — This article is about the geographical reference system. For other uses, see Latitude (disambiguation). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are actually halves of great… …
40Flag of Portugal — Infobox flag Name = Portugal Use = 110111 Proportion = 2:3 Adoption = June 30 , 1911 Design = A 2:3 vertically striped bicolor of green and red, with the lesser Use2 = 001000 Adoption2 = June 30, 1911 Proportion2 = 12:13 Design2 = As above, but… …
