Astronomy test
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42 Terms
Lunar
What type of eclipse?
the study of how stars affect people
What is astrology?
false
The brighter a star, the larger its magnitude
whatever one has the smallest number/ largest negative
How do you know what star is the brightest
the earth rotates on its axis
Why does the sun rise in the east and set in the west?
east
Where does the sun rise?
getting smaller
waning
the darkest part of a shadow cast
What is the umbra?
the place where you can see the partial part of the eclipse
What is a penumbra?
everything orbits the earth
Aristotle believed
solar
What type of eclipse?
the moon is obscured
During a lunar eclipse…
a small portion of the earth
A solar eclipse can be seen by…
the moon blocks the sun
During a solar eclipse…
solar eclipse
What type of eclipse is this?
full moon
Name this Moon phase.
new moon
Name this Moon phase.
crescent moon
Name this moon phase!
an imaginary sphere around earth, with coordinates
The celestial sphere is
ecliptic
Apparent path of Sun on the celestial sphere is ……….
inside the celestial sphere
In our model of a celestial sphere, the earth is located
imaginary line that divides the northern and southern hemisphere
What is the equator?
Orion
What constellation is this?
a pattern of stars
What is a constellation?
the study of how ancient people understood astronomy
Archaeoastronomy is
the daily changes in the elevation of the ocean surface
Tides are?
low
Neap Tides are
the highest low and high tide
What are spring tides?
Full moon or now moon
When do spring tides occur?
polaris
What star is closest to the celestial north pole?
a projection of earth's equator into space
The celestial equator is…
december 21
The winter solstice is on or around…
june 21-22
When does Summer Solstice occur?
september 22
When is the Autumn Equinox?
false, 2 times
An equinox happens 4 times a year?
astronomer who said the sun was the center of the universe
Who was Nicolaus Copernicus
planets moved in circles around the sun
Copernicus proposed that ____.
The Earth is the center of the universe
Geocentric means…
the Earth is at the centre of the Universe
According to the geocentric model…
when everything is revolving around the sun
What was the heliocentric theory?
the idea that the earth and the other planets revolve around the sun.
What does the heliocentric theory mean?
The Earth's tilt & Revolution
The reason for the seasons?
Note 
Flashcards (90)