Numbers

Question 1

What is the rotational and orbital period of the moon?

Answer 1

27.3 days

Question 2

What is the diameter of the sun?

Answer 2

1.4 million km

Question 3

What is the distance from the moon to the Earth?

Answer 3

380 000 km

Question 4

How far is the Earth from the Sun?

Answer 4

150 000 000 km (1 AU)

Question 5

What temperature is the corona of the Sun (the suns atmosphere, only visible during an eclipse)

Answer 5

2 000 000 Kelvin

Question 6

What is the temperature of the Photosphere ( surface of the sun)

Answer 6

5 800 Kelvin

Question 7

What is the temperature of the Chromosphere (The suns lower atmosphere)

Answer 7

6 000 Kelvin

Question 8

What is the diameter of the earth?

Answer 8

13 000 Km

Question 9

What is a solar day and a sidereal day?

Answer 9

Solar day: 24hrs

Sidereal day: 23hrs 56mins

Question 10

What is the diameter of the moon?

Answer 10

3 500 km

Question 11

Length of lunar cycle?

Answer 11

29.5 days.

Question 12

how much brighter is each level of magnitude?

Answer 12

2.5

Question 13

How much is 10 parsecs?

Answer 13

32 light years

Question 14

What is the diameter of an average galaxy?

Answer 14

30 000 parsecs

Question 15

in a galaxy what is the thickness of the disk?

Answer 15

300 parsecs

Question 16

what is the position of the sun in the milky way?

Answer 16

2/3 of the way out

Question 17

What is the bulges diameter?

Answer 17

6 000 parsecs

Question 18

what is the colatitude?

Answer 18

90- the latitude

Question 19

At what distance is the apparent magnitude of a star equal to its absolute magnitude?

Answer 19

10 parsecs