Astronomy Test 1 Vocab Flashcards Preview

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Flashcards in Astronomy Test 1 Vocab Deck (30):
1

The totality of all space, time, matter, and energy

Universe

2

The portion of the entire universe that we can potentially see

Observation Universe

3

The study of the universe

Astronomy

4

The average distance between the Earth and the Sun

Astronomical Unit

5

What is the distance between the sun and the Earth?

93 million miles

6

The distance traveled by a beam of light in one year

Light Year

7

How far North or South from Equator

Latitude

8

How far East of West from Prime Meridian

Longitude

9

Starting point of longitude

Prime Meridian

10

A large, glowing ball of gas

Star

11

An object that orbits a star

Planet

12

An object that orbits a planet

Moon-Satellite

13

A relatively small rocky object that orbits a star

Asteroid

14

A relatively small, icy object that orbits a star

Comet

15

When the sun is at its highest peak in the sky

Local Noon

16

A range of longitude where a common standard time is used

Time Zone

17

Spin about its axis

Rotation

18

Go around the sun

Orbit

19

Sun passes directly above equator after the winter solstice

Vernal Equinox

20

When the sun passes above the equator after summer solstice

Autumnal Equinox

21

When the sun is at the highest point above the equator in the northern hemisphere

Summer Solstice

22

Wen the sun is at the lowest point above the equator in the southern hemisphere

Winter Solstice

23

The slow wobble of the Earth's axis due to the influence of the moon

Precession

24

Using the sun to determine length of day

Solar Day

25

Using the stars to determine the length of day

Sidereal Day

26

Sections of the sky that are named for the recognizable patters of the stars in the sky

Constellations

27

The 12 constellations along the ecliptic on star chart

Zodiac Constellations

28

Recognizable patterns of stars that are not one of the 88 constellations

Asterism

29

The angle of a star above the horizon

Altitude

30

A large imaginary sphere surrounding the Earth

Celestial Sphere