Constellations and Earth's Orbit

The lecture explains how Earth's orbit around the Sun causes changes in the constellations visible in the night sky. It discusses the concept of zodiac constellations and how they appear to move throughout the year. A diagram is used to illustrate Earth's position relative to the Sun and stars, showing how different constellations become visible at different times. The lecture also covers how constellations rise and set, and how their visibility changes monthly due to Earth's orbit.

What constellation is highest in the southern sky at midnight on January 1st?

• Scorpius

• Gemini

• Canis Major

• Leo

How long does it take for Earth to complete one orbit around the Sun?

• 365 days

• 30 days

• 12 months

• 24 hours

How many constellations are in the zodiac?

• 10

• 14

• 13

• 12

What is the significance of the zodiac constellations?

• They never change position

• They are only visible at night

• The Sun passes through them annually

• They are visible all year

Which constellation is directly behind the Sun during the day?

• Gemini

• Leo

• Scorpius

• Taurus

What is the direction a person is facing if they are opposite the North Pole?

• East

• West

• South

• North

If Taurus is highest in the sky at midnight, what time does it rise?

• 6 PM

• 12 PM

• 12 AM

• 6 AM

In one month, which constellation will be highest in the sky at midnight?

• Leo

• Aries

• Gemini

• Taurus

What happens to the rising time of Taurus over a month?

• It rises later

• It rises earlier

• It rises at the same time

• It does not rise

What is the effect of Earth's orbit on the visibility of constellations?

• Constellations change position

• Constellations disappear

• Constellations become brighter

• Constellations remain static