Introduction

Question 1

Solstice and dates

Answer 1

Point at which the sun is at its highest point or lowest point in the sky
Sun is directly over the Tropic of Cancer
Longest day in either n or s
Continuous day in either arctic circle depending on date
21st June
21st of December

Question 2

Perihelion

Answer 2

December - January
Orbital velocity is highest
Earth is closest to the sun

Question 3

Aphelion

Answer 3

June
Orbital velocity is lowest
Sun is furthest away from the sun

Question 4

Equinox and dates

Answer 4

Sun directly overhead the equator
Equal day and night
March equinox - 20/21 march
September equinox - 22/23rd September

Question 5

Earth orbits around

Answer 5

Plane of the ecliptic

Question 6

Equator vs the plane of ecliptic

Answer 6

23.5*

Causes seasons

Question 7

Greatest difference between the apparent noon and the mean noon

Answer 7

Between Feb and nov

Question 8

Shape of the earth

Answer 8

Oblique/oblique spheroid

Question 9

Ratio of ellipticity

Answer 9

1/298 or 1/297

Question 10

Circumference of the equator

Answer 10

21,600nm

40,000km

Question 11

Distance from the equator to the poles

Answer 11

5400nm

10,000km

Question 12

Diameter of the earth

Answer 12

12732. 4 km

6874. 9 nm

Question 13

Radius of the earth

Answer 13

3437. 47nm

6322. 2km