Exam 2: Users Guide to the Sky: Patterns and Cycles

If the apparent visual magnitude of star A is 3.1, and the apparent visual magnitude of star B is 0.5, how do star A and star B compare in terms of apparent brightness as seen from Earth?

When does a solar or lunar eclipse occur?

The celestial equator always passes directly overhead.

The totally eclipsed Moon glows coppery red because sunlight reaches the Moon's surface after passing through the Earth's atmosphere.

During a total lunar eclipse, where is the Moon?

A second magnitude star in Ursa Major is brighter than a fourth magnitude star in Orion.

When and where is a first quarter Moon visible?

Why is the Moon's synodic period longer than its sidereal period?

The constellations were created by the Greeks.

What is the term for the point in the Earth's orbit where the Earth is farthest from the Sun?

At which of the following times would you find the Sun on the celestial equator?

When does the full Moon occur?

The ____________________ is the point on the celestial sphere directly above an observer, regardless of where the observer is located on Earth.

Why is the constellation Leo not visible all year from Canada?

If the Moon's orbital plane was aligned with the celestial equator, when would eclipses occur?

For an observer in Pond Inlet, Nunavut, at a latitude of 73° North, what is the angle between the northern horizon and the north celestial pole?

Refer to Table 2-1. Which star in the table would be invisible to the unaided eye of an observer on Earth?

The ____________________ period of the Moon is the time required for one revolution of the Moon around the Earth with respect to the stars.

On the autumnal equinox (Sept. 21), where is the Sun on the celestial sphere?