Astronomy Part 2

Front

The occasional westward (left to right) motion of planets across the celestial sphere is called:

Back

retrograde motion

Front

The shape of a Mars’s orbit around the Sun is best described as a(n):

Back

ellipse

Front

The configuration with Venus at the largest angle from the Sun is called?

Back

greatest elongation

Front

The Sun is at one focus of the Earth’s elliptical orbit. What is at the other focus?

Back

nothing

Front

An orbit with which of the following eccentricities is most circular? 0.10, 0.25, 0.72, 0.90

Back

0.10

Front

In what phase is Venus closest to the Earth?

Back

new

Front

In what phase of Venus can we sometimes see that planet eclipsed by the Sun?

Back

full

Front

When a planet is directly between the Earth and the Sun it is said to be in what configuration?

Back

Inferior conjunction

Front

True or False: Parallax describes the variation in angle that occurs when viewing nearby objects from different places.

Back

True

Front

A planet closer to the Sun will have…

Back

…a shorter year than a planet further from the Sun.