Earth, Moon, and Sun Relationships

The lecture covers Earth's revolution, zodiac constellations, axial tilt, and its impact on seasons. It explains precession and the shifting of celestial poles, focusing on Polaris. The Moon's orbit, phases, and types of eclipses are discussed, emphasizing synchronous rotation. The lecture concludes with a summary of Earth's rotation, revolution, and the Moon's phases.

What is the average distance from the Earth to the Sun known as?

• Light year

• Astronomical unit

• Kilometer

• Parsec

Which constellation is the Sun seen in on September 11 as viewed from Earth?

• Taurus

• Orion

• Leo

• Scorpius

What is the axial tilt of the Earth responsible for?

• Day and night

• Eclipses

• Seasons

• Tides

On which date does the northern hemisphere experience the longest day?

• December 21

• March 21

• September 22

• June 21

If the ecliptic were aligned with the celestial equator, what would be the impact on seasons?

• Seasons would last longer

• There would be no seasons

• Seasons would be the same as now

• Seasons would be more intense

What is the term for the Moon's rotation that keeps the same face towards Earth?

• Orbital rotation

• Lunar rotation

• Synchronous rotation

• Axial rotation

During which phase of the Moon is a solar eclipse possible?

• New moon

• Full moon

• First quarter

• Third quarter

Why don't we observe eclipses every month?

• The Earth's orbit is elliptical

• The Moon's orbit is circular

• The Moon's orbit is tilted

• The Sun's position changes

What causes the daily patterns of rising and setting of the Sun?

• Earth's axial tilt

• Earth's revolution

• Earth's rotation

• Moon's phases

What is responsible for the phases of the Moon?

• Earth's rotation

• Sun's position

• Earth's revolution

• Moon's revolution around Earth