celestial bodies
41heavenly bodies — noun a) plural of heavenly body b) often used in plural form to refer to the large/celestial bodies in outer space …
42Poles of astronomical bodies — This article is about geographic, magnetic and other poles on planets and other astronomical bodies. For the Earth s poles, see North Pole, South Pole, North Magnetic Pole, and South Magnetic Pole. See also Pole of inaccessibility. The poles of… …
43parallax in celestial altitude — The angle between the straight line from a celestial body to an observer, and the straight line from the celestial body to the center of the earth. This angle is assumed to be infinitely small except when observing the moon or satellites, as the… …
44celestialglobe — celestial globe n. A model of the celestial sphere showing the positions of the stars and other celestial bodies. * * * …
45celestialmechanics — celestial mechanics n. (used with a sing. verb) The science of the motion of celestial bodies under the influence of gravitational forces. * * * …
46celestialnavigation — celestial navigation n. Navigation of a ship or aircraft based on the positions of celestial bodies. Also called astronavigation. * * * …
47History of Physics — History of Physics † Catholic Encyclopedia ► History of Physics The subject will be treated under the following heads: I. A Glance at Ancient Physics; II. Science and Early Christian Scholars; III. A Glance at Arabian Physics; IV.… …
48gravitation — gravitational, adj. gravitationally, adv. /grav i tay sheuhn/, n. 1. Physics. a. the force of attraction between any two masses. Cf. law of gravitation. b. an act or process caused by this force. 2. a sinking or falling …
49physical science — physical scientist. 1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy. 2. these sciences collectively. [1835 45] * * * Introduction the systematic study of the inorganic world …
50Chinese 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… …
