Astronomy Test 1 Flashcards Preview

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Flashcards in Astronomy Test 1 Deck (14):
1

What horizon does the sun rise and set?

Rise: East
Set: West

2

How many stars are there?

10 billion trillion

3

What is the amount of stars like?

There are more stars than the total number of grains of sand on all the beaches on Earth

4

How fast does light travel?

300,000 kilometers or 186,000 meters per second

5

What is light used to measure?

Used to measure the distance in the universe

6

How far apart are time zones?

Every 15 degrees there is a new time zone

7

How are time zones determined?

They were used to coordinate train schedules

8

Why do we need time zones?

At some places, if we didn't have time zones, it would be 2 in the afternoon and dark out

9

What is the tilt of the Earth?

23.5

10

Know charts

Draw them

11

How will precession affect the north star?

It won't be the north star forever b/c north won't be the same in the future

12

How many constellations are there?

88

13

How can the altitude of Polaris be used to determine latitude?

The angle of Polaris above your horizon is the same as your latitude

14

What is the relationship between the angle of the sun in the sky and the chance of getting sunburn?

When the sun is higher up, it is easier for the suns rays to come through our atmosphere and when the sun is lower it is harder. It is easier to get sunburn when the sun is higher.