The skyOur place in space
Constellations
Measurement
Celestial Sphere
Polaris and
precession
$200 $200 $200 $200 $200 $200
$400 $400 $400 $400 $400 $400
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$1000 $1000 $1000 $1000 $1000 $1000
$200
About how many stars are visible on a clear dark night with just your eyes?
About 3000
$400
6 pm
If the moon rose tonight at 5 pm, about what time will it
rise tomorrow
$600
You have been sitting out watching the star and you notice that the star you are watching has moved about 15 degrees, how long have you been watching?
1 hour
$800
If a star is directly overhead tonight, how long will it take for it to be directly overhead again?
23 hours and 56 minutes
$1000
When the sun rises it is located in the constellation Gemini, what constellation will it set in?
In Gemini
$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 a
$600
Universe, Local Group, Milky Way and Solar System
Put the following in order from largest to smallest: Milky Way Local group,
solar system and Universe
$800
We are not in the center of our solar system, which is not in the center of the
Milky Way and we are just one of a billion galaxies in the universe. Earth is made of common elements found throughtout the
universe.
Why is Earth considered ordinary as a planet?
$1000
The Milky Contains which of the following:100,00 stars100 million stars100 Billion stars
100 million stars
$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
Pisces
If your astrological sign is Aries according to tradition, what constellation is the sun actually in on your date of
birth?
$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
How long is the Precession cycle
26,000 Years
$400
Is a star with a large parallax a great distance or short
distance from earth
Shorter distance
$600
What is inversely proportional to the distance to a star?
Parallax
$800
We measure distances to stars in?
Light years
$1000
Which star is closer one with a parallax of 2.3 arc seconds or one with a 1.2 arc seconds?
The one with 2.3 arc seconds is closer
$200
Celestial sphere
Astronomical objects are viewed against the
background of the _?
$400
What celestial line is a product of the Earth’s orbit
around the Sun?
ecliptic
$600
+90 to -90 degrees
What is the range of values for declination?
$800
0 hours to 23 hours
What is the range of values for Right Ascension
$1000
If a star at vernal equinox rises at 0hr what would a star
at 1.0 hour rise?
1 hour after vernal equinox
$200
Northstar
Of all the visible objects in the sky, which appears to
move the least?
$400
Where on Earth would you be if Polaris was at your Zenith
North Pole
$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
$1000
If Seattle is at 43 degrees north Latitude, where is Polaris in the sky?
43 degrees