Untitled Deck Flashcards
1
Q
What is the circle of illumination
A
The lighted part of the earth is called the circle of illumination
2
Q
Name the days when the winter and summer solstice occur
A
Summer solstice occurs on June 21 when the sun is overhead at the tropic of cancer. Winter solstice occurs on December 22 when the southern hemisphere is tilted towards the sun while the northern hemisphere is tilted away from the sun
3
Q
What is the distance of the sun at aphelion and perihelion
A
at aphelion the distance of the sun is 152 million km while at its closest at perihelion the earth is 147.3 million km
4
Q
What day is the earth said to be aphelion
A
July 4
