Astrology Flashcards
Long period comets
Originate from the Oort cloud, 200 years to orbit the sun
Short period comets
Originates from the Kuiper belt, less than 200 years to orbit sun
Space junk
Chunks of materials and satellites that break apart
Galaxy
Hundreds of billions of stars held together by gravity (black hole)
Universe
All existing matter and space
Solar eclipse
Moon is directly between the earth and sun
Lunar eclipse
Earth is directly between sun and moon
Nebula
Enormous cloud of dust and gas
Planet
Object that orbits around one or more stars
Inner planets
Small, terrestrial planets
Outer planets
Large, gas giants
Near earth obj.
Space objects that come into earth’s neighborhood
Stars
Large balls of hot gas
Comets
Similar to asteroids, but they have more ice
Asteroids
Irregularly shaped objects made of rock and metal, and they orbit around the sun like planets