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Transcript
SNC1D - Space In Our Sky The universe is everything that exists Many people study what is beyond the earth. This is called astronomy. What can we see in the sky? Star A collection of matter that emits lots of energy (a source of light – luminous). Stars are grouped into patterns called constellations. Not in our solar system – very far away! Our solar system consists of the sun and the objects that travel around it. Objects in our Solar System Planets are spherical matter that revolve around a sun. There are 9 planets in our solar system – Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Moons are matter that revolve around a planet. Planets and moons are often visible. They are nonluminous (they don’t emit light). Light from the sun reflects off of them and back to earth, making them visible.
