Chapter 2 Practice
When we see Saturn going through a period of apparent retrograde motion, it means
Earth is passing Saturn in its orbit, with both planets on the same side of the Sun.
Some type of lunar or solar eclipse (not necessarily a total eclipse) occurs
at least four times a year
If the Sun rises precisely due east:
it must be the day of either the spring or fall equinox.
If there is going to be a total lunar eclipse tonight, then you know that:
the Moon's phase is full.
In winter, Earth's axis points toward the star Polaris. In spring:
the axis also points toward Polaris.
A week after full moon, the Moon's phase is:
third quarter
Beijing and Philadelphia have about the same latitude but very different longitudes. Therefore, tonight's night sky in these two places:
will look about the same
When it is summer in Australia, the season in the United States is
winter
The North Celestial Pole is 35.0 ∘ above your northern horizon. This tells you that:
you are at latitude 35.0 ∘ N.
