Earth's Motions
Solstice and Equinox
Calendars and Time
Measuring the Universe
Misc
100
one day
What is the time it takes earth to make one complete rotation on its axis
100
summer solstice
What is longest number of day light hours; June 21, 22
100
1 hour of right ascention
What is 15 degrees
100
tilt of the Earth's axis
What is 23.5 degrees
100
Astronomer
What is a person who study the universe
200
year
What is the time it takes the Earth to travel one complete revolution around the Sun
200
Winter Solstice
What is the shortest number of daylight hours; Dec. 21, 22
200
a quadrennial event
What is leap year
200
AU
What is the average distance from the Earth to the Sun
200
National Science Foundation and NASA
What is Who funds astronomy research?
300
Foucault Pendulum
What is provides evidence that the Earth rotates on its axis
300
sun's rays strike the Tropic of Cancer at 90 degrees
What is summer solstice
300
4000 AD
What is a leap year because it is divisible by 400.
300
Speed of light
What is 300,000,000 m /s
300
a collection of stars, dust and gas bound together by gravity
What is a galaxy
400
Coriollis Effect
What is caused by the rotation of the earth; curving of ocean currents and winds belt to the left or right.
400
Equinox
What is when the sun crosses the celestial equator; equal hours of day and dark
400
24
What is the number of different time zones
400
light year
What is the distance light travels in one year
400
sun, Earth, other planets, asteroids and comet
What is a solar systems
500
constellation
What is change in position during the night is evidence of rotation.
500
Summer in the Northern hemisphere
What is when the north pole is tilted toward the sun
500
Gregorian Calendar
What is the modern calendar we use now
500
8 light minutes
What is the distance of the earth to the sun?
500
Milky Way
What is the name of our galaxy?
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