Ch 22 Astronomy

Who first proposed that the sun was the center of the universe?

• Aristotle
• Aristarchus
• Anaxogoras
• Ptolemy

One astronimical unit averages about

• 93 million kilometers
• 150 million kilometers
• 210 million kilometers
• 300 million kilometers

During which month is Earth farthest from the sun?

• January
• April
• July
• October

In 13,000 years, Earth's axis will point toward

• Polaris
• Vega
• the sun
• the moon

At what point is the moon nearest to Earth during its orbit?

• at apogee
• at perihelion
• during an eclipse
• at perigee

What type of eclipse occurs when the moon casts its shadow on Earth?

• lunar
• solar

During the period that the moon's phases are changing from new to full, the moon is always

• waning
• approaching Earth
• waxing
• receding from Earth

The large, dark regions on the moon are called

• highlands
• craters
• mountains
• maria

Rilles are assiciated with which of the following lunar features?

• craters
• maria
• rays
• highlands

The oldest lunar features are

• highlands
• rayed craters
• rilles
• maria