Question 1

astronomy

Accepted Answer

the study of outer space and all that it contains

Question 2

sunspots

Accepted Answer

dark patches on the sun's photosphere

Question 3

corona

Accepted Answer

part of the sun visible only during a solar eclipse

Question 4

solar wind

Accepted Answer

a high-speed stream of particles that travels outward from holes in the sun's corona and beats upon the earth's upper atmosphere

Question 5

spiral, elliptical, irregular

Accepted Answer

the three basic types of galaxy shapes

Question 6

constellation

Accepted Answer

stars that outline a picture in the sky

Question 7

Big Dipper

Accepted Answer

familiar shape within the constellation Ursa Major which contains the pointer stars

Question 8

core

Accepted Answer

the hottest region of the sun

Question 9

solar prominence

Accepted Answer

streams of gas erupting form the chromosphere and returning in loop like fashion

Question 10

barred spirals

Accepted Answer

spiral arms attached to a straight "bar" that runs through a galaxy

Question 11

friction

Accepted Answer

the force that resists motion

Question 12

vacuum

Accepted Answer

an area that contains no air

Question 13

nebulae

Accepted Answer

large clouds of gas and dust floating around in space

Question 14

Sirius

Accepted Answer

the brightest star in the night sky

Question 15

Polaris

Accepted Answer

the pole star

Question 16

the sun

Accepted Answer

the closest star to the earth

Question 17

Regulus

Accepted Answer

the brightest star in the constellation Leo

Question 18

Algol

Accepted Answer

the brightest star in the constellation Perseus

Question 19

axis of rotation

Accepted Answer

the imaginary line that stretches from pole to pole

Question 20

galaxy

Accepted Answer

a star system containing millions to billions of stars

Question 21

Local Group

Accepted Answer

the cluster with about 40 galaxy in which we find Earth

Question 22

93 million miles

Accepted Answer

the distance from the sun to the earth

Question 23

chromosphere

Accepted Answer

the part of the sun's atmosphere closest to its surface

Question 24

corona

Accepted Answer

the hottest region of the sun's atmosphere

Question 25

binary star

Accepted Answer

a pair of stars that travel together and rotate around each other as the moon does the earth

Question 26

supernova

Accepted Answer

the actual explosion of a star

Question 27

apparent magnitude

Accepted Answer

measurement used to describe the brightness of a star as it appears from earth

Question 28

absolute magnitude

Accepted Answer

the actual brightness of a star

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