Chapter 3

Front 1

a staitionary, pole-like device used to determine the position and motion of the sun by the shadow it casts

Back 1

gnomon

Front 2

the first type of telescope invented

Back 2

refractor telescope

Front 3

the ability to bring out details in an image

Back 3

resolution

Front 4

a problem with simple refractor telescopes

Back 4

chromatic aberration

Front 5

uses both lenses and mirrors to gather light

Back 5

composite telescope

Front 6

detects wavelengths other than visible light

Back 6

radio telescope

Front 7

also known as celestial latitude

Back 7

declination

Front 8

the measure of the brightness of a star

Back 8

magnitude

Front 9

a star's real movement across the sky (perpendicular to the line of sight)

Back 9

proper motion

Front 10

star movement directly toward or away from the observer (parallel to the line of sight)

Back 10

radial motion

Front 11

a star that sometimes increases many magnitudes in brilliance for a period of time, then returns to its normal brightness

Back 11

nova

Front 12

a spinning neutron star that gives out stron, rapidly changing radio signals

Back 12

pulsar

Front 13

the galaxy that contains the earth's sun

Back 13

Milky Way

Front 14

a large mass of dust and gases in space

Back 14

nebula

Front 15

a staitionary, pole-like device used to determine the position and motion of the sun by the shadow it casts

Back 15

gnomon

Front 16

the first type of telescope invented

Back 16

refractor telescope

Front 17

the ability to bring out details in an image

Back 17

resolution

Front 18

a problem with simple refractor telescopes

Back 18

chromatic aberration

Front 19

uses both lenses and mirrors to gather light

Back 19

composite telescope

Front 20

detects wavelengths other than visible light

Back 20

radio telescope

Front 21

also known as celestial latitude

Back 21

declination

Front 22

the measure of the brightness of a star

Back 22

magnitude

Front 23

a star's real movement across the sky (perpendicular to the line of sight)

Back 23

proper motion

Front 24

star movement directly toward or away from the observer (parallel to the line of sight)

Back 24

radial motion

Front 25

a star that sometimes increases many magnitudes in brilliance for a period of time, then returns to its normal brightness

Back 25

nova

Front 26

a spinning neutron star that gives out stron, rapidly changing radio signals

Back 26

pulsar

Front 27

the galaxy that contains the earth's sun

Back 27

Milky Way

Front 28

a large mass of dust and gases in space

Back 28

nebula

Front 29

a staitionary, pole-like device used to determine the position and motion of the sun by the shadow it casts

Back 29

gnomon

Front 30

the first type of telescope invented

Back 30

refractor telescope

Front 31

the ability to bring out details in an image

Back 31

resolution

Front 32

a problem with simple refractor telescopes

Back 32

chromatic aberration

Front 33

uses both lenses and mirrors to gather light

Back 33

composite telescope

Front 34

detects wavelengths other than visible light

Back 34

radio telescope

Front 35

also known as celestial latitude

Back 35

declination

Front 36

the measure of the brightness of a star

Back 36

magnitude

Front 37

a star's real movement across the sky (perpendicular to the line of sight)

Back 37

proper motion

Front 38

star movement directly toward or away from the observer (parallel to the line of sight)

Back 38

radial motion

Front 39

a star that sometimes increases many magnitudes in brilliance for a period of time, then returns to its normal brightness

Back 39

nova

Front 40

a spinning neutron star that gives out stron, rapidly changing radio signals

Back 40

pulsar

Front 41

the galaxy that contains the earth's sun

Back 41

Milky Way

Front 42

a large mass of dust and gases in space

Back 42

nebula