AST 1002 Midterm Ch. 2

circumpolar

Stars that are visible in the local sky on any clear night of the year, at any time of the night, are called _________.

over many days or weeks, the planet moves westward relative to the stars, rather than the usual eastward relative to the stars

During the time that a planet is in its period of apparent retrograde motion, _________.

The parallax shift decreases as the star's distance from Earth increases.

How would a star's parallax change as its distance from Earth increases?

in about 2 weeks

If we have a new moon today, when we will have the next full moon?

The altitude of the north celestial pole equals your latitude.

If you are located in the Northern Hemisphere, which of the following correctly describes a relationship between the sky and your location?

full moon

Lunar eclipses can occur only during a _________.

a new moon is quite near the Sun in the sky

We cannot see a new moon in our sky because _________.

A constellation is a region in the sky as seen from Earth.

What do astronomers mean by a constellation?

the path the Sun appears to trace around the celestial sphere each year

What is the ecliptic?

The tilt of Earth's axis causes different portions of Earth to receive more or less direct sunlight at different times of year.

Which of the following best describes why we have seasons on Earth?

All of these objects rise in the east and set in the west.

Which of the following celestial objects do NOT rise in the east and set in the west, as viewed from the Earth? (Assume that all of these objects are visible from your location on Earth, and that none of them are circumpolar.)

The angular distance between those two bright stars in the sky is about 2 meters.

Which of the following statements does NOT use the term angular size or angular distance correctly?