The moon moves slightly slower, reappearing every _______. What is the missing word?
24 hours 49 minutes
1 of 9
when the moon is on the opposite side of the earth to the sun, an observer on earth can see the whole illuminated side of the moon. this is a full moon. TRUE OR FALSE?
True
2 of 9
Solar day is _______.it's how the sun takes to cross the sky. A sidereal day is ________. it is how long stars take to reach the same position in the sky. What are the missing times?
solar day is 24 hrs and sidereal is 23 hrs 56 mins
3 of 9
A solar eclipse is .....
when the moon blocks the light
4 of 9
A lunar eclipse is ....
when the Moon is in the Earth shadow
5 of 9
Eclipse are rare because the Moon's orbit is tilted relative to the plane of the Earth's orbit by about ....
5 degrees
6 of 9
What is a parallax angle?
an indication of the distance of a star
7 of 9
The colour of the hottest star is red and the colour of the coolest star is white. TRUE or FALSE?
False
8 of 9
What are cephid variable?
A stars whose brightness varies regularly, over a period of days
9 of 9
Other cards in this set
Card 2
Front
when the moon is on the opposite side of the earth to the sun, an observer on earth can see the whole illuminated side of the moon. this is a full moon. TRUE OR FALSE?
Back
True
Card 3
Front
Solar day is _______.it's how the sun takes to cross the sky. A sidereal day is ________. it is how long stars take to reach the same position in the sky. What are the missing times?
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