Space Exploration 1

Question 1

Define solstice?

Answer 1

The longest and shortest days of the year

Question 2

What is the geocentric model?

Answer 2

That earth is the center and everything else rotates around it

Question 3

What is the heliocentric model?

Answer 3

That the sun was the center and everything else rotates around it.

Question 4

Define Equinox?

Answer 4

When the sun is directly over the equator and day and night are equal.

Question 5

When is summer solstice?

Answer 5

June 21st

Question 6

When is winter solstice?

Answer 6

December 21st

Question 7

When is Autumnal equinox?

Answer 7

September 22nd

Question 8

When is vernal equinox?

Answer 8

March 21st

Question 9

How many days does it take Earth to complete a full rotation around the sun?

Answer 9

365.25 days

Question 10

Define AU

Answer 10

A measure of the distance between object in space

Question 11

Define light year

Answer 11

How things in space are measured when they are too far for AU

Question 12

What is the speed of light

Answer 12

300 000 km/s

Question 13

What is the Hubble Space telescope

Answer 13

A reflecting telescope that orbits 600km above the earth

Question 14

What are stars made of?

Answer 14

they are balls of gas that continuously emit light energy

Question 15

What is the life cycle of a star?

Answer 15

Stellar Nebula — Sun-like stars — Red giant —White dwarf — black dwarf

Stellar nebula — Massive stars — Red super giant
— Supernova — Neutron stars or black hole

Question 16

What is the main sequence?

Answer 16

When stars convert hydrogen to helium

Question 17

Define nebulae

Answer 17

a cloud of gas and dust

Question 18

Define supernova

Answer 18

A solar explosion caused when a residual start becomes dense

Question 19

Define neutron star

Answer 19

It is the collapsed core left behind by a destroyed star, which spins rapidly

Question 20

Define black hole

Answer 20

A highly dense left-overs of a star with gravity so strong that light cannot escape.

Question 21

What is a Hertzsprung-Russell Diagram

Answer 21

Show the classification of the stars according to luminosity, spectral types, colour, temp, and evolutionary stage.

Question 22

What is the difference between a constellation and an Asterism?

Answer 22

An asterism is just an unrecognized, unofficial constellation

Question 23

What is a spectrescope?

Answer 23

Splits light up so you can see what colour it emits therefore knowing what it’s made of.

Question 24

What are the three types of galaxies?

Answer 24

Spiral- flattened disc with spiral patterns in it
Eliptical- Smooth in appearance
Irregular- Have no definite shape. Stars form in clusters randomly distributed throughout the galaxy

Question 25

Define white dwarf

Answer 25

A star beginning to fade

Question 26

Define black dwarf

Answer 26

A star completely faded

Question 27

Define meteoroid

Answer 27

A small piece of rock flying through space

Question 28

Define meteor

Answer 28

A meteoroid once it enters the atmosphere

Question 29

Define meteorite

Answer 29

A meteor if it reaches earths surface.

Question 30

Define comet

Answer 30

Made of dust and ice which heat up and emit light when they get near the sun. The gasses appear as the comet’s tail.

Question 31

Define asteroid

Answer 31

Bodies of rock orbiting between mars and Jupiter.

Question 32

Define Azimuth

Answer 32

The compass direction with 0 degree due north. Tells you which way to point.

Question 33

Define Altitude

Question 34

Define Zenith

Answer 34

The highest point directly ahead