Studying the Universe (P7) 0.0 / 5 ? PhysicsAstronomyGCSEEdexcel Created by: TJGrovesCreated on: 11-04-14 13:06 What is a Sidereal day The time it takes for the earth to spin once 1 of 6 What is a solar day? The time is takes for the sun to appear in the same position in the sky that is 24 hours 2 of 6 Why are solar and sidereal days different? Because the earth orbits the sun as well as spinning on its own axis 3 of 6 why do stars change position in the sky? because as the earth moves round the sun the direction we face changes slightly every day so we see a slightly different patch of sky each day 4 of 6 Why does the moon look as if it is glowing Because it reflects light from the sun 5 of 6 What part of the moon do we see in a "new" moon when the dark half faces us 6 of 6
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