2.2

Question 1

Sunspots

Answer 1

areas that appear dark on the surface of the sun

Question 2

Photosphere

Answer 2

the region of a star from which most of its light is radiated

Question 3

Corona

Answer 3

the outermost region of our current model of the galaxy containing most of the mass in some unknown ways

Question 4

Solar wind

Answer 4

an outflow of particles from the sun representing the expansion of the corona

Question 5

phases of the moon

Answer 5

varying appearances of the moon seen from earth

Question 6

new moon

Answer 6

side of the moon facing the earth is the side that is not illuminated by sunlight

Question 7

crescent

Answer 7

when only a small arc-shaped section of the visible portion is illuminated by the sun

Question 8

half moon

Answer 8

only half of the moons surface can be seen from the earth

Question 9

first quarter moon

Answer 9

when one half of the moons disk is illuminated by the sun

Question 10

waxing

Answer 10

as the moon starts to move around the earth becomes more and more visible

Question 11

gibbous

Answer 11

the phase between half and full moon

Question 12

full moon

Answer 12

when the side facing the earth is fully illuminated

Question 13

third quarter moon

Answer 13

when the opposite half of the moon is illuminated compared to the first quarter

Question 14

waning

Answer 14

after a full moon the visible side of the moon begins to have less and less sun shining on it

Question 15

eclipse

Answer 15

the passage of all or part of an astronomical body into the shadow of another

Question 16

solar eclipse

Answer 16

when the moon comes between the sun and the earth

Question 17

penumbra

Answer 17

of a s sunspot the outer region not as dark as the umbra

Question 18

umbra

Answer 18

of a sunspot the dark central region

Question 19

shadow bands

Answer 19

a phenomenon seen just before and after total phases of solar eclipse in which low contrast bands of light and dark race across the landscape

Question 20

baileys beads

Answer 20

beads of light visible around the rim of the moon at the beginning and end of a total solar eclipse

Question 21

diamond ring effect

Answer 21

the last baileys bead glowing brightly at the beginning of a solar eclipse

Question 22

chromosphere

Answer 22

part of the sun between the photosphere and the corona

Question 23

annular ecplise

Answer 23

eclipse at which the moon is too small in angular size to cover the solar photosphere leaving the annulus showing

Question 24

revolution

Answer 24

the orbiting of one body around another

Question 25

rotation

Answer 25

spin on an axis

Question 26

in transit

Answer 26

one body passing in front of another as seen by an observer

Question 27

inclination

Answer 27

of an orbit the angle of the plane of the orbit with respect to the ecliptic plane

Question 28

How big is the photosphere?

Answer 28

1.4 million K

Question 29

What parts of the electromagnetic spectrum are the radiation that comes to earth from the sun in?

Answer 29

the visible and ultra violet

Question 30

why do we see other planets in our solar system

Answer 30

because they reflect the solar radiation towards us

Question 31

what causes magnetic storms on earth?

Answer 31

the solar wind particles hit the earths upper atmosphere

Question 32

how long does the rotation of the moon take

Answer 32

13 hours / 29 1/2 earth days

Question 33

how is the moons revolution comparable to the earths revolution

Answer 33

because the phase of the moon that we see from the earth as the moon revolves around us depends on the relative orientation of the 3 bodies (Sun earth and moon) so because the plane of the moon's revolution around the earth is near the same as the plane of the earth revolution around the sun.

Question 34

what is the total lunar ecplise

Answer 34

when the earths shadow gradually covers the moon

Question 35

what is a total solar ecplise

Answer 35

when the lunar shadow barely reaches the earths surface

Question 36

why don't we have lunar eclipses most months

Answer 36

because the moons orbit around the earth and the earths orbit around the sun are not in the same plane

Question 37

how long does a lunar ecplise last

Answer 37

over an hour

Question 38

why does the moon sometimes appear red during an ecplise

Answer 38

the light falls on the moon

Question 39

compare the distance of the moon to the earth and the size of the photosphere of the sun. How does it relate to the solar eclipse

Question 40

who is able to see a total solar eclipse

Answer 40

people who are stationed within the narrow band

Question 41

what causes a partial eclipse

Answer 41

when the moon sun and earth are not aligned and the umbra never hits the earth then we in the penumbra

Question 42

why is it necessary to view solar eclipse with a filter

Answer 42

because you will see nothing through your naked eye and it could cause blinding and irritation

Question 43

contrast ecplictic plane and the ecliptic

Answer 43

EP- plane in which the earths orbit lies E- the suns path in the sky

Question 44

what are the inclinations of the different planets in our solar system

Answer 44

pluto- 17 mercury - 7 the rest of the planets have less than 4

Question 45

what is one of the most important facts that we know about our solar system

Answer 45

that the planets all orbit the sun in essentially the same plane