Term | Definition |
star | a large, hot ball of glowing gases |
tilt | to cause to lean, incline, slope, or slant. |
orbit | the curved path, usually elliptical described by a planet, satellite, spaceship, ect, around a celestial body, as the sun. |
moon | the natural satellite of earth, visible (cheifly at night) by reflected light from the sun. |
telescope | (with reference to an object made of concentric tubufar parts) slide or cause to slide into itself, so that it becomes smaller |
universe | the universe is believed to be at least 10 bilion light years in diameter and contains a vaat number of galaxies; it been expanding since its creation it the Big Bang about 13 billion years ago. |
planet | a celestal body moving is an elliptical orbit around a star. |
revolve | move in a circle on a central axis, |
rotate | move or cause to move in a circle around an axis or center. |
solar energy | radiant energy emitted by the sun. |
costellation | a group of star forming a recognizable pattern is traditionally named after its apparent from identified with a mythological figure. |
atmosphere | the envelope of gasses sorounding the earth or anouther planet. |
comet | a celestial object consisting of a nucleus of ice and, when near the sun, a "tail" of gas and dust particales pointing away from the sun. |
lunar ecilpse | an eclipse in which the moon appears darkended as it passes into the earth's shadow. |
solar ecilpse | an ecilpse in which the sun is obscured by the moon. |
ellptical | the moon follows an ellptical path around the earth. |
galaxy | a system of mllion or billion of stars, with gas and dust, held together by gravitational attaction. |
solstice | either of two times in the year, the summer solstice and the winter solstice, when the sun reaches its highest or lowest point in the sky at noon, marked by thr longest and shortest days. |
asteroid | a small rocky body orbiting the sun. |
satellite | a celestial body orbiting the earth or another planet. |