Constellations
Seasons
The Celestial Sphere
Planetary Motion
Miscellaneous
100
They are used to name regions of the sky in an organized fashion.
What are constellations?
100
The angle Earth's axis is tilted.
What is 23.5o?
100
An imaginary sphere around the Earth, on which all celestial objects are projected.
What is the celestial sphere?
100
The directions that all planets revolve around our sun.
What is counter-clockwise?
100
This causes the day/night cycle.
What is Earth's rotation?
200
The number of constellations that the IAU recognizes.
What is 88?
200
The longest or shortest day of the year.
What is solstice?
200
The equivalent of latitude on the celestial sphere.
What is declination?
200
Spinning about one's own axis.
What is rotation?
200
The current latitude is the same as this.
What is angle of the celestial pole?
300
Constellations that never set.
What are circumpolar contellations?
300
"Equal Night," the day when the entire world has the same hours of daylight.
What is equinox?
300
The line that travels through one's zenith and the N/S celestial poles.
What is the celestial meridian?
300
The plane on which the planets revolve around the sun.
What is the ecliptic?
300
The motion of the stars during the night, the shape they make.
What are diurnal circles?
400
The alphabet used to name stars today.
What is Greek?
400
January.
When is the Earth closest to the sun?
400
The unit of measure used with right ascension.
What is "hours" and "minutes"?
400
The apparent backward motion of superior planets.
What is retrograde motion?
400
A very bright star has this magnitude.
What is a negative magnitude.
500
Even though they are very far apart, stars appear near to each other in space, forming constellations.
What is the projection effect?
500
On June 21st, the sun rays are perpendicular to this latitude.
What is the Tropic of Cancer? OR What is 23.5oN?
500
The lower limit of your view of the sky.
What is the celestial sphere?
500
The wobbling of Earth's axis.
What is precession?
500
The inferior planets.
What are Mercury and Venus?
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