Introduction

Question 1

1 Parsec =

Answer 1

3.262 Light Years

Question 1

1 Astronomical Unit (AU) =

Answer 1

Average distance between sun and earth

Question 2

1 Light Year =

Answer 2

64,300 AU

Question 3

Satellite

Answer 3

A body orbiting a larger body

Question 4

Radius of visible universe

Answer 4

14 billion parsecs

Question 5

4 Fundamental forces of nature

Answer 5

Gravitation, electromagnetic force, strong interaction, weak interaction

Question 6

Zenith

Answer 6

highest pint an object reaches in the sky before it comes back down

Question 7

Nadir

Answer 7

Closest point to the horizon an object gets before going up again.

Question 8

How many constellations?

Answer 8

88, they map the sky

Question 9

Celestial sphere

Answer 9

Half dome above the earth that we picture the stars sitting on

Question 10

Horizon

Answer 10

Where the sky meets the ground

Question 11

Constellations

Answer 11

Fixed patterns of stars on the celestial sphere

Question 12

Celestial poles

Answer 12

Lie directly above the north and south poles, don’t move

Question 13

Celestial equator

Answer 13

Lies directly above earth’s equator

Question 14

Ecliptic

Answer 14

The line that the sun traces across the celestial sphere

Question 15

Angular separation between stars

Answer 15

60 min in 1 degree, 60 sec in 1 min

Question 16

Right Ascension

Answer 16

Stated in hours (24 hrs), matches longitude

Question 17

Declination

Answer 17

Stated in degrees, matches longitude, ranges from -90 to 90

Question 18

Summer Solstice

Answer 18

June, longest day of the year

Question 19

Vernal Equinox

Answer 19

March, Same day and night times

Question 20

Winter Solstice

Answer 20

December, Shortest day of the year

Question 21

Auturnal Equinox

Answer 21

September, Same day and night times

Question 22

When is it summer?

Answer 22

When we are tilted toward the sun, direct sun beam hits

Question 23

When is it winter?

Answer 23

When we are tilted away from the sun, sun beam has to spread out, less energy

Question 24

Earth’s Tilt

Answer 24

23.5 degrees

Question 25

Scientific Method

Answer 25

Observation, Hypothesis, Experiment, Theory

Question 26

3 Criteria of a Theory

Answer 26

Fit the available observed data, make predictions that allow it to be tested, and represent nature in the simplest way (Aesthetic)