The direction we are facing in Murfreesboro when we see the Sun rising up and to the right.
What is East?
100
This star is aligned with the North Celestial Pole.
What is Polaris?
100
This system measures time by the stars instead of by the Sun.
What is sidereal time?
100
This fraction of the entire surface of the Moon is always illuminated directly by the sun, no matter what the phase is.
What is 50%?
100
This eclipse happens when the Moon passes in front of the Sun.
What is a solar eclipse?
200
When facing west from Murfreesboro, this direction describes the path the Sun follows as it sets toward the horizon.
What is down and to the right?
200
This location on the Celestial Sphere is directly above the North Pole on Earth.
What is the North Celestial Pole?
200
The length of time of a sidereal day.
What is 23 hours and 56 minutes?
200
As seen from Earth, the Moon appears to be half-illuminated during these two phases.
What are the First and Third Quarters?
200
Solar eclipses only happen during this moon phase.
What is the New Moon?
300
Star trails facing North show that stars follow tracks around this star
What is Polaris?
300
This region in the sky is 90 degrees away from the Zenith.
What is the horizon?
300
Because this motion is slower than the daily rotation of the Earth, the Sun's position against the background stars is nearly the same over a single day.
What is the annual motion?
300
This phase of the Moon occurs when the alignment is as follows: Sun, Moon, Earth
What is New Moon?
300
These eclipses happen more often because the Earth is bigger than the Moon.
What are lunar eclipses?
400
Looking North, stars appear to move in this direction around the star Polaris
What is counter-clockwise?
400
These coordinates can be used to measure the location of any point on Earth.
What is latitude and longitude?
400
The path the Sun follows around the Celestial Sphere over the year.
What is the Ecliptic?
400
The Sun, the Earth, and the Moon are at a 90 degree angle during these phases?
What are the First and Third Quarters?
400
This is the main reason why eclipses don’t happen every month.
What is the Moon's orbital tilt?
500
These coordinates for stars remain the same as the Earth rotates and travels around the Sun.
What is right ascension and declination?
500
These coordinates are used to indicate the location of stars in the sky, but they change if you move to a different location or look at the object at a different time.
What are altitude and azimuth?
500
The Earth’s 23.5 degree tilt causes this phenomenon.
What is seasonal change?
500
If the Earth was the size of a basketball, the Moon would be this big.
What is a baseball?
500
The approximate diameter of the Moon’s shadow on Earth during a total solar eclipse.