Astronomy Ch. 2 Final

What do astronomers mean by a constellation? A constellation is a region in the sky as seen from Earth. A constellation is a group of stars related through an ancient story. A constellation is a group of stars that are all located in about the same place in space. A constellation is any random grouping of stars in the sky.

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

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

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

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

Circumpolar

Lunar eclipses can occur only during a _________. third quarter moon first quarter moon new moon full moon

Full moon

If you are located in the Northern Hemisphere, which of the following correctly describes a relationship between the sky and your location? The longitude of the north celestial pole is circumpolar, and therefore crosses your zenith at the meridian. The altitude of the north celestial pole equals your latitude. The altitude of the celestial equator equals your latitude. The altitude of the north celestial pole equals your longitude.

The altitude of the north celestial pole equals your latitude.

How would a star's parallax change as its distance from Earth increases? The parallax shift decreases as the star's distance from Earth increases. The parallax shift increases as the star's distance from Earth increases. The parallax shift does not change; it is independent of the star's distance from Earth.

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

Which of the following best describes why we have seasons on Earth? Earth's elliptical orbit means we are closer to the Sun and therefore receive more intense sunlight at some times of year than at others. The tilt of Earth's axis causes different portions of Earth to receive more or less direct sunlight at different times of year. The varying speed of Earth in its orbit around the Sun gives us summer when we are moving fastest and winter when we are moving slowest. The tilt of Earth's axis causes the Northern Hemisphere to be closer to the Sun than the Southern Hemisphere in summer, and visa versa in winter.

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

We cannot see a new moon in our sky because _________. it is above the horizon during the daytime it is obscured by Earth's shadow a new moon is quite near the Sun in the sky no sunlight is illuminating the Moon

a new moon is quite near the Sun in the sky

If we have a new moon today, when we will have the next full moon? in about 6 months in about a month in about 2 weeks in about 1 week

in about 2 weeks

During the time that a planet is in its period of apparent retrograde motion, _________. over many days or weeks, the planet moves westward relative to the stars, rather than the usual eastward relative to the stars the planet is getting closer to the Sun in its orbit the planet moves backwards (clockwise as viewed from above Earth's north pole) in its orbit of the Sun the planet appears to rise in the west and set in the east, rather than the usual rising in the east and setting in the west

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

What is the ecliptic? the Sun's daily path from east to west in our sky the path the Sun appears to trace around the celestial sphere each year the path traced by the Moon's shadow on Earth during a solar eclipse a half-circle extending from your horizon due north, through your zenith, to your horizon due south

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