Details Title: Astronomy Book Vocabulary Description: Chapter 1/Section 1 Total Flash Cards: 8 Created: 06/13/2005 11:27:19		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Astronomy Flashcards
Cards in this set: Term astronomy Definition the study of the moon, stars, and other objects in space Term axis Definition an imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates Term rotation Definition the spinning motion of a planet on its axis Term revolution Definition the movement of an object around another object Term orbit Definition the path of an object as it revolves around another object in space Term solstice Definition the two days of the year on which the sun reaches its greatest distance north or south of the equator Term equinox Definition the two days of the year on which neither hemisphere is tilted toward or away from the sun Term calendar Definition a system of organizing time that defines the beginning, length, and divisions of a year