Early History of Astronomy
Pictures in the Sky
Terminology
Phases of the Moon
The Tides
100
This astronomer was the first to propose a heliocentric model of the solar system.
Who was Nicolaus Copernicus?
100
This is the name given to a group of stars that make a particular pattern.
What is a Constellation?
100
These constellations are visible year round and never set below the horizon.
What are "Circumpolar Constellations"?
100
This is the name of this lunar phase.
What is First Quarter?
100
If high tide is at noon, this is the time low tide occurs.
What is 6:00 pm?
200
This famous astronomer supported the heliocentric model with his own observations made by telescopes he designed.
Who was Galileo Galilei?
200
This is the total number of official constellations.
What is 88?
200
This is the name given to the imaginary curved shape around the earth that holds all the stars.
What is the Celestial Sphere?
200
This is the percent illumination of a new moon.
What is 0%?
200
This is how you calculate the tidal range.
What is High Tide minus Low Tide?
(Range = H - L)
300
This star was one tool early navigators used to find North.
What is "Polaris"?
300
The constellation shown here represents this animal.
What is a Lion?
300
Celestial Navigators would look for these constellations in the Night Sky to help them predict the Location of the Sun at Night, as well as East from West.
What are "Zodiac Constellations"?
300
This is the phase of the moon shown here.
What is a Waxing Crescent?
300
This is how often a Spring Tide occurs each month.
What is Twice a Month?
400
This astronomer made accurate and precise observations of the sky for 20 years, but did not support the heliocentric model.
Who was Tycho Brahe?
400
This is the name of the bull that Orion is fighting.
What is "Taurus"?
400
With only 15 constellations in this constellation category, these constellations are visible from most places as they intersect with Celestial Equator.
What are "Equatorial Constellations"?
400
This is the name of the lunar phase shown here.
What is Waning Gibbous?
400
This is the type of tide shown in this diagram.
What is a Spring Tide?
500
This ancient Greek astronomer recorded all of the constellations known to him at the time and also developed a complex geocentric model of the solar system.
Who was Claudius Ptolemy?
500
This is the name given to a smaller, well known group of stars inside a constellation.
What is an Asterism?
500
This is what IAU stands for.
What is the International Astronomical Union?
500
This is the lunar phase that occurs two phases after the lunar phase shown here.
What is New Moon?
500
This is the name of the tide that create the highest "low tide."
What is a Neap Tide?