Solar System

Question 1

How long is the earths sidereal day ?

Answer 1

23h 56min 4sec

Question 2

What is the zenith ?

Answer 2

When you look directly upwards

Question 3

What is the perihelion ?

Answer 3

When the earth is closest to the sun

Question 4

What is the Aphelion ?

Answer 4

When the earth is furthest from the sun

Question 5

What is the elliptic ?

Answer 5

The plain the planets orbit the sun

Question 6

What’s does the earth have to allow life ?

Answer 6

Liquid water,atmosphere,light, Fertile soil,o zone layer,Van Allen belts,climate

Question 7

What are the Van Allen belts ?

Answer 7

Two donuts that meet at both poles that stop charged electrons from hitting the earth

Question 8

What are craters ?

Answer 8

A large bowl shaped cavity in the ground left by a celestial object hitting it

Question 9

What are Maria ?

Answer 9

A Maria is a dark sea looking land on the moon caused by lava cooling

Question 10

What are terrae ?

Answer 10

Bright areas in the moon that ere highlands they take up 84% of the moons surface

Question 11

What are rilles ?

Answer 11

A long narrow depression in the earths surface

Question 12

What are wrinkle ridges ?

Answer 12

Commonly found on Maria large ridges in the moons surface

Question 13

What are mascons ?

Answer 13

A region of excess gravitational attraction

Question 14

What are domes ?

Answer 14

A type of shield volcano that is found on the surface they are formed by highly viscous lava erupting from localised vents

Question 15

How long does it take the moon the rotate ?

Answer 15

27.3 days

Question 16

How long does it take the moon to finish its orbit ?

Answer 16

27.3 days

Question 17

How long does it take to finish the lunar cycle ?

Answer 17

30 days

Question 18

What shape is the earth ?

Answer 18

Oblate spheroid

Question 19

What is the diameter of the earth ?

Answer 19

13000 km wide

Question 20

How long is the earths solar day ?

Answer 20

24 hours

Question 21

What is the moons diameter ?

Answer 21

4000km

Question 22

Why is the moons rotational period the same as orbital period ?

Answer 22

Because it is in gravitational lock so we only see one side of the moon

Question 23

Where is the Tycho crater ?

Answer 23

South west

Question 24

Where is the Copernicus crater ?

Answer 24

Slightly North west

Question 25

Where is the sea of tranquility ?

Answer 25

East

Question 26

Where is the sea of crisis ?

Answer 26

Very Far East

Question 27

Where are the mountains ?

Answer 27

North

Question 28

What is the lunar eclipse ?

Answer 28

When the moon passes directly into the earths shadow making it look orange

Question 29

What is a solar eclipse ?

Answer 29

When the moon passes in front the sun when viewed form earth

Question 30

What is the suns diameter ?

Answer 30

1.4 million km

Question 31

How far is the sun form the earth ?

Answer 31

149.6 million km away from earth

Question 32

How hot is the suns surface ?

Answer 32

5,777k

Question 33

What is the rotational period of the suns equator ?

Answer 33

25 days

Question 34

What is the rotational period of the suns poles

Answer 34

36 days

Question 35

How does the sun shine ?

Answer 35

By turning hydrogen into helium by thermo nuclear fusion

Question 36

How hot is the corona ?

Answer 36

2 million k

Question 37

How hot is the chromosphere ?

Answer 37

10,000 k

Question 38

How hot is the photosphere ?

Answer 38

6000 k

Question 39

How hot is the connective zone ?

Answer 39

14,000 k

Question 40

How hot is the radiative zone ?

Answer 40

400,000 k

Question 41

How hot is the core ?

Answer 41

15 million k

Question 42

What are solar winds ?

Answer 42

A stream of charged particles released from the atmosphere of the sun

Question 43

What are sun spots ?

Answer 43

Dark area on the sun

Question 44

What is the meridian ?

Answer 44

A circle of constant longitude passing through a certain place and through the poles

Question 45

Where does the sun set and rise ?

Answer 45

The sun rises in the east and sets in the west

Question 46

What is a centaur ?

Answer 46

Half asteroid half comet

Question 47

What is conjunction ?

Answer 47

When two or more celestial object pass or meet going the same direction

Question 48

What is opposition ?

Answer 48

When two celestial bodies look like their on opposite sides of the sky when viewed from earth

Question 49

What is transit ?

Answer 49

When a celestial body passes I front of another covering part of it up

Question 50

What is occulation ?

Answer 50

When an object completely covers another

Question 51

What is direct motion ?

Answer 51

The forward motion of the planet in the sky

Question 52

What is retrograde ?

Answer 52

When a plant undertakes an outside planet it will look like a loop in the sky

Question 53

What is the earths atmosphere made of ?

Answer 53

Nitrogen (78%) , oxygen (21%) , argon (1%)

Question 54

What is the O zone layer ?

Answer 54

A layer of the atmosphere that protects us from harmful rays (UV rays)

Question 55

What is keplers first law ?

Answer 55

Plants orbit a star on an eclipse with a star as it's focus

Question 56

What is keplers third law ?

Answer 56

Time of an orbit is linked to average separation | T^2=R^3

Question 57

How do you find out what the Mean solar time is ?

Answer 57

Apparent Solar Time - EOT

Question 58

How do you find out what your longitude is ?

Answer 58

Compare Mean Solar Time to GMT divide by 4

Question 59

Is there link between distance and gravity ?

Answer 59

Double the distance 4 times the gravity you feel

Question 60

What is apparent magnitude ?

Answer 60

Magnitude (brightness) when viewed from the earth

Question 61

What is absolute magnitude ?

Answer 61

The magnitude when viewed from 10 parsecs