Phases of the Moon
Reasons for the
Seasons
Constell-ations
EclipsesCelestial Sphere
Using terms
$200 $200 $200 $200 $200 $200
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$1000 $1000 $1000 $1000 $1000 $1000
$200
Full moon
Which phase appears as the moon completely lit overhead
at midnight
$400
6 pm
If the moon rose tonight at 5 pm, about what time will it
rise tomorrow
$600
Full moon
a lunar eclipse occurs only during a
$800
The Earth is also revolving around the Sun, so the Moon must catch up
Why is there a difference between the sidereal and lunar
months?
$1000The phase will be full because it is rising opposite the sun. If the moon is directly opposite of the sun in the sky it will be a
full moon
If the moon rises at sunset, what phase will it be in? Why?
$200
23.5 degrees
What is the tilt of the earth on its axis?
$400
year
The time it takes for Earth to complete an orbit around the Sun is called.
$600
equinoxes
The places where the Sun crosses the equator are called
the
$800
Summer solstice
The sun is high overhead at 23.5 degrees north.
$1000
Check your answer with me
Draw the reasons for the seasons showing equinoxes
and solstices
$200
constellations
Groups of stars making an apparent pattern in the celestial sphere are called
$400
Brightest star
In general, what is true of the alpha star in a constellation
$600
About 3000
About how many stars are visible on a clear, dark night with the naked eye alone?
$800
Taurus
If the sun rises in the constellation of Taurus which
constellation will it set in?
$1000
88
Into how many constellations is the celestial sphere divided
by the IAU?
$200
New moon.
A solar eclipse can only happen during a
$400
Total eclipse of the sun
If you are in the Moon’s umbral shadow, then you
will witness
$600
New moon on ecliptic at apogee
What conditions are necessary for an annular solar eclipse?
$800New moon on the ecliptic at perigee
What conditions are necessary for a total solar eclipse?
$1000
Show your visual representation
Draw a solar eclipse showing the penumbra and umbra of the moon’s shadow on earth
$200
North pole
Where on Earth would you be if Polaris was at your zenith?
$400
What celestial line is a product of the Earth’s orbit
around the Sun?
ecliptic
$600
23 hours and 56 minutes
You note that a particular star is directly overhead. It will
be directly overhead again in
$800
0 hours to 23 hours
What is the range of values for Right Ascension
$1000
If Seattle is at 47 degrees north latitude on earth where
is Polaris in the sky
47 degrees
$200
Northstar
Of all the visible objects in the sky, which appears to
move the least?
$400
Shorter distance
Is a star with a large parallax and great distance or short
distance from earth
$600
Precession
The fact that Polaris will not always be the North Star is due to what Earth motion?
$800
26,000 years
How long is the precession cycle
$1000He realized that the sun was directly overhead in one city and at a slight angle in another at
the same time and therefore realized the Earth was curved. He realized the distance between the cities was a 7 degree difference or about
1/50th of the earth’s total conference
Explain how Eratosthenes measure the circumference of
our planet
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