P7 Flashcards
What is a solar day?
A solar day is the time taken for the sun to appear at the same position in the sky. It’s 24 hours.
What happens in the lunar eclipse?
As it orbits, the moon sometimes passes into the earths shadow. The earth blocks sunlight from the moon, so almost no light is reflected from the moon and it just seems to disappear.
What is a solar eclipse?
The moon is just the right size and distance away that when it passes between the sun and the earth, it can block out the sun.
What is the difference between a total solar eclipse and a partial solar eclipse?
From parts of their son is completely blocked – a total solar eclipse.
From many places on earth only part of the sun will be blocked – A partial solar eclipse.
What is a sidereal day?
A sidereal day is the time taken for a star to return to the same position in the sky. It’s about 23 hours and 56 minutes.