31.1 and 2

Question 1

constellation

Answer 1

star pattern that appears to form images which astronomers used to identify other stars

Question 2

radio telescope

Answer 2

radio that collects and magnifies radio sound waves

Question 3

light year

Answer 3

distance light travel in one year 9.5 trillion km

Question 4

spectroscope

Answer 4

device that disperes into its component wavelength

Question 5

nebula

Answer 5

interstellar cloud of gas and ice

Question 6

main sequence

Answer 6

section of the H-R diagram that is plotted on the upper left to the lower right and contains 90 percent of all known stars

Question 7

white dwarf

Answer 7

giant star that has lost the outer layers leaving behind a hot dense core

Question 8

supernova

Answer 8

gigantic explosion of a star

Question 9

neutron star

Answer 9

produced by collapsing star when protons and electrons in the star’s core collide from neutrons

Question 10

black hole

Answer 10

a region in space that is so dense that nothing can escape it inward pull of gravity

Question 11

photosphere

Answer 11

layer in the sun that emits light into space

Question 12

sunspots

Answer 12

darker, cooler areas of the suns photosphere

Question 13

how some of the constellations got their names

Answer 13

They where in stories, animals and even tools.

Question 14

what is the constellation of a great hunter called

Answer 14

Orion’s belt

Question 15

what are the names of his two dogs

Answer 15

canis minor and canis major

Question 16

how many basic optical telescopes are there

Answer 16

2

Question 17

what is a refracting telescope

Answer 17

it uses convex lenses

Question 18

what is a reflecting telescope

Answer 18

uses a mirror

Question 19

what are the two names of the two optical telescopes

Answer 19

reflecting and refracting

Question 20

what the two major space telescopes

Answer 20

chandra X-ray and Spitzer

Question 21

giant star

Answer 21

late stage in a star’s life cycle that occurs when its hydrogen fuel is depleted

Question 22

how are stars formed

Answer 22

by nebula

Question 23

what does HR stand for in Hr diagram

Answer 23

Hertzprung Russel

Question 24

what is our sun known as

Answer 24

a giant star

Question 25

are sunspots permanent

Answer 25

no they disappear over time