Understanding Sunrise, Sunset, and Celestial Navigation

Front

What is the exact moment of sunrise?

Back

When the upper edge of the Sun becomes visible over the eastern horizon

Front

What is the time called between sunset and dusk?

Back

Twilight

Front

How does daylength change at higher latitudes during winter?

Back

Days become shorter

Front

What is Polaris commonly known as?

Back

The North Star

Front

How can you find Polaris in the night sky?

Back

Use the pointer stars of the Big Dipper

Front

Which line of longitude runs through Greenwich, England?

Back

The Prime Meridian

Front

What does the latitude coordinate indicate?

Back

Distance north or south of the equator

Front

What is the area of Earth between the equator and the North Pole called?

Back

Northern Hemisphere

Front

What happens to the length of a day over time due to Earth's rotation speed?

Back

Days become longer

Front

What is the term for the morning twilight period?

Back

Dawn