Section One: 3. Time

Question 1

Ecliptic angle

Answer 1

23 degrees, 27 minutes

Question 2

The sun tracks along a great circle during the year. This track is known as the..

Answer 2

Ecliptic angle

Question 3

The EXACT time it takes the Earth to rotate entirely is called a..

Answer 3

Sideral day

Question 4

Why is the true Earth’s rotation (sideral day) not exactly 24 hours?

Answer 4

The Sun travels at an elliptical path, not a spherical one

Question 5

Approximate rotational speed of the Sun

Answer 5

15 degrees

Question 6

1 hour is equivalent to what in terms of rotation

Answer 6

15 degrees of longitude

Question 7

For night-time definitions, what degree is essential for calculating twilight?

Answer 7

6 degrees