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23 Cards in this Set
- Front
- Back
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How fast does light travel? |
300,000km a second |
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What is a light year? |
The distance light can travel in a year |
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What is a constellation? |
A group of stars that we give a name |
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What is the difference between astronomy and astrology? |
Astronomy is a science with math. Astrology is not a science, has no math, and is purely mythology. |
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What are the planets in order? |
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune |
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Which direction do all the planet turn in? |
Counterclockwise |
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As the Earth gets closer to the sun it gets (slower, faster) |
Faster |
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Why is Mars red? |
There is rust in the sand |
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How was the moon formed? |
Something hit the Earth and material flew off Earth and became the moon |
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How old is the Earth? |
4.5 billion years old |
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What is a revolution? |
The Earth going completely around the sun (a year) |
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What direction and speed does the sun rotate at? |
The sun rotates counterclockwise as quickly as Earth rotates |
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How many Earths would fit inside the sun? |
1.3 million |
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How many Earths would it take to make the diameter of the sun? |
109 Earths |
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What temperature are solar flares? |
10,000°C |
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How many years does it take for sunspots to cycle? |
11 years |
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Define umbra. |
During an eclipse, umbra is the name for the inner shadow where you see the full eclipse |
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Define penumbra |
During an eclipse, the penumbra is the outer, lighter shadow which shows only part of the eclipse |
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Define diamond ring during an eclipse. |
A single bead of light remains from behind the moon |
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What is a total eclipse? |
The moon is completely covering the sun |
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What is a partial eclipse? |
The moon passes in front of the sun out of center |
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What is an annular eclipse? |
When the moon appears too small to cover the sun |
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What is a hybrid eclipse? |
The moons position is so balanced that the Earth's curvature plays a part in the eclipse |
