Night Sky
A region of the celestial sphere
constellation
Earth's varying distance from the Sun causes our seasons.
False!
This star does not seem to rise and set in the night sky
Polaris/The North Star
At any given moment, this much of the Moon is illuminated by the Sun
Half
Our view of what is being blocked during a lunar eclipse?
Moon
The imaginary sphere on which objects in the sky appear to reside
Celestial Sphere
This causes seasons
Earth's tilt
The Sun's apparent path through the celestial sphere
Ecliptic
Term used to describe "growing" phases of the moon
Waxing
Eclipses occur because the Sun causes the Earth and Moon to do what?
Cast shadows
This causes stars to appear as though they rise and set
Earth's rotation
What occurs during an equinox?
Equal hours of day and night
These type of Sun rays hits the earth more directly, causing increased heating
Vertical rays
These TWO terms describe why the same side of the Moon is always facing Earth
synchronous rotation
tidal locking
Which type of eclipse can only be seen from certain places on Earth during the day?
Solar eclipse
Why do we see different constellations as different times of the year?
Earth's revolution/orbit around the Sun
When it is fall in Australia, what season is it in Illinois?
Spring
This causes synchronous rotation of the Moon
When the Earth is directly between the Moon and the Sun, what phase of the Moon do we see?
Full Moon
Why don't we have an eclipse during every new and full moon?
Moon's orbit is tilted
When a nearby star appears to move relative to more distant background stars
Stellar parallax
Winter
How many official constellations are there?
The 6th phase of the lunar phase cycle
Waning gibbous
How long is the Saros cycle?
18 years 11 1/3 days