celestial+equator
101meridian — 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,… …
102Mercury (planet) — Mercury  ☿ …
103e|qui|noc|tial — «EE kwuh NOK shuhl», adjective, noun. –adj. 1. having to do with an equinox, or with a state when day and night are of equal length in all parts of the earth. 2. occurring at the time of an equinox: equinoctial storms. »The equinoctial seasons… …
104Asterism (astronomy) — In astronomy, an asterism is a pattern of stars seen in Earth s sky which is not an official constellation. Like constellations, they are composed of stars which, while they are in the same general direction, are not physically related, often… …
105Aries — /air eez, ee eez /, n., gen. Arietis /euh ruy i tis/. 1. Astron. the Ram, a zodiacal constellation between Pisces and Taurus. 2. Astrol. a. the first sign of the zodiac: the cardinal fire sign. See illus. under zodiac. b. a person born under this …
106Pisces — /puy seez, pis eez/, n., gen. Piscium /pish ee euhm/, for 1. 1. Astron. the Fishes, a zodiacal constellation between Aries and Aquarius. 2. Astrol. a. the twelfth sign of the zodiac: the mutable water sign. See illus. under zodiac. b. a person… …
107declination — i. The angular difference in direction between magnetic north and true north, or between grid north and true north; hence, magnetic declination and grid declination. ii. The angular distance of a celestial body from the celestial equator along… …
108Chinese astronomy — The Dunhuang map from the Tang Dynasty (North Polar region). This map is thought to date from the reign of Emperor Zhongzong of Tang (705–710). Founded in Dunhuang, Gansu. Constellations of the three schools were distinguished with different… …
109hour angle — The angular distance west of a celestial meridian or hour circle; the arc of the celestial equator, or the angle at the celestial pole, between the upper branch of a celestial meridian or hour circle and the hour circle of a celestial body or the …
110Equinoctial — E qui*noc tial, a. [L. aequinoctials, fr. aequinoctium equinox: cf. F. [ e]quinoxial. See {Equinox}.] 1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line. [1913 Webster] 2. Pertaining to… …
