Chapter 10 pp. 336-363

Question 0

The line that separates the visible portion of the celestial sphere from the part that we cannot see

Answer 0

horizon

Question 1

An imaginary, giant hollow sphere with the earth at the center and the sun, moon, and stars, and other planets on its inner surface

Answer 1

celestial sphere

Question 2

The points on the celestial sphere that are directly overhead at the earth’s pole

Answer 2

celestial poles

Question 3

North celestial pole

Answer 3

Polaris

Question 4

Which is directly above Earth’s equator

Answer 4

celestial equator

Question 5

“circling the pole”

Answer 5

circumpolar

Question 6

Celestial sphere

Answer 6

ecliptic

Question 7

A small group of stars that are used to form a picture or represent an object

Answer 7

asterisms

Question 8

The great bear

Answer 8

Ursa Major

Question 9

One of the most familiar asterism; asterism of the great bear

Answer 9

Big Dipper

Question 10

Little bear

Answer 10

Ursa Minor

Question 11

Asterism of the little bear

Answer 11

Little Dipper

Question 12

The lion

Answer 12

Leo

Question 13

The brightest star in Leo

Answer 13

Regulus

Question 14

An asterism that looks like a backward question mar; asterism of the lion

Answer 14

Sickle

Question 15

The herdsman

Answer 15

Boötes

Question 16

The virgin

Answer 16

Virgo

Question 17

The dragon

Answer 17

Draco

Question 18

The lyre

Answer 18

Lyra

Question 19

The brightest summer star; star of the lyre

Answer 19

Vega

Question 20

The swan

Answer 20

Cygnus

Question 21

Cygnus’s brightest star

Answer 21

Deneb

Question 22

A magnificent asterism formed by several bright stars in Cygnus

Answer 22

Northern Cross

Question 23

Deneb, Vega, and Altair form a prominent asterism called the _

Answer 23

Summer Triangle

Question 24

The scorpion

Answer 24

Scorpius

Question 25

Brightest star of Scorpius

Answer 25

Antares

Question 26

The archer

Answer 26

Sagittarius

Question 27

Asterism of the archer

Answer 27

Teapot or the Milk Dipper

Question 28

_ was named after a mythical queen of Ethiopia and represents a vain woman sitting down and looking at herself in a hand mirror

Answer 28

Cassiopeia

Question 29

Named after Cassiopeia's husband

Answer 29

Cepheus

Question 30

The brightest star in Cepheus

Answer 30

Alderamin

Question 31

Cassiopeia's and Cepheus's daughter

Answer 31

Andromeda

Question 32

Andromeda's asterism

Answer 32

Great Square

Question 33

A flying horse

Answer 33

Pegasus

Question 34

Best known star in Perseus' constellation

Answer 34

Algol

Question 35

The brightest of all constellation

Answer 35

Orion

Question 36

Orion's brightest stars

Answer 36

Rigel, Betelgeuse, and Belatrix

Question 37

The big dog

Answer 37

Canis Major

Question 38

The brightest star in the heavens; star of the big dog

Answer 38

Sirius

Question 39

The twins

Answer 39

Gemini

Question 40

Brightest stars in the twins

Answer 40

Castor and Pollux

Question 41

The bull

Answer 41

Taurus

Question 42

Forms one of the eyes of the bull

Answer 42

Aldebaran

Question 43

The _ also called the "seven stars" or "seven sisters", are one of the most spectacular sights in Taurus

Answer 43

Pleiades

Question 44

Between the legs of Centaurus shines the constellation _

Answer 44

Crux

Question 45

The four brightest stars in Crux form an asterism called the _

Answer 45

Southern Cross

Question 46

The most important star to us

Answer 46

sun

Question 47

The center of the sun

Answer 47

core

Question 48

The visible part of the sun; "sphere of light"

Answer 48

photosphere

Question 49

"bubble"

Answer 49

granule

Question 50

The sun's surface is also covered by much larger convection cells called _

Answer 50

supergranules

Question 51

The sun's dark patches

Answer 51

sunspots

Question 52

Outside the photosphere; lowest layer of the sun's atmosphere; "sphere of color"

Answer 52

chromosphere

Question 53

Flamelike columns of gas

Answer 53

spicules

Question 54

Streams of dense gas erupting off the chromosphere and returning in a loop-like fashion

Answer 54

solar prominences

Question 55

Outside the chromosphere is a very thin layer, the _

Answer 55

transition region

Question 56

The outermost layer of the sun's atmosphere

Answer 56

corona

Question 57

A device that blocks the light from the photosphere

Answer 57

coronagraph

Question 58

A high-speed stream of charged particles ejected from the sun

Answer 58

solar wind

Question 59

The distance light travels in one year

Answer 59

light-year

Question 60

The apparent change in the position an object caused by the actual change in the position of the observer

Answer 60

parallax

Question 61

The _ is half the angle that the star appears to move on the celestial sphere when viewed from opposite sides of Earth's orbit

Answer 61

stellar parallax

Question 62

The brightness of a star as it appears to an observer on the earth

Answer 62

apparent magnitude

Question 63

Is the apparent magnitude that star would would have to an observer located 10 parsecs from the star

Answer 63

absolute magnitude

Question 64

A useful tool for classifying stars

Answer 64

Hertzsprung-Russell diagram

Question 65

A system in which two stars are bound together by gravity

Answer 65

binary star

Question 66

A pair of stars that are close on the celestial sphere but are far apart in space

Answer 66

optical double

Question 67

_ are loose, asymmetrical clumps containing tens to hundreds, and occasionally thousands, of stars

Answer 67

open clusters

Question 68

_, tightly clumped spherical groups of thousands or millions of stars, travel outside the boundaries of the Milky Way in unusual orbits around the galaxy's center

Answer 68

globular clusters

Question 69

Occasionally, a star will suddenly flare up to many times its original brightness

Answer 69

nova

Question 70

The explosion of a star

Answer 70

supernova

Question 71

A rapidly rotating neutron star that emits directional beams of radio waves

Answer 71

pulsar

Question 72

A massive star system containing millions to billions of star

Answer 72

galaxy

Question 73

The galaxy in which we live in

Answer 73

Milky Way

Question 74

The largest galaxy in the Local Group

Answer 74

Andromeda Galaxy

Question 75

Astronomers believe that cluster are grouped into larger structures called _

Answer 75

superclusters

Question 76

The spiral arms attach to a straight "bar" that runs through the nucleus of the galaxy

Answer 76

barred spirals

Question 77

An object so massive and dense that not even light can escape its gravity

Answer 77

black hole