Solar and Lunar Eclipses

Front

What is a solar eclipse?

Back

A solar eclipse occurs when the moon passes between the Earth and the sun, blocking the sun's light.

Front

What is a lunar eclipse?

Back

A lunar eclipse happens when the Earth passes between the sun and the moon, causing Earth's shadow to fall on the moon.

Front

What is the path of totality?

Back

The path of totality is the area on Earth where a total solar eclipse can be observed.

Front

How often do solar eclipses occur?

Back

Solar eclipses occur approximately 2 to 5 times a year, but total solar eclipses are less frequent.

Front

What is the difference between a total solar eclipse and a partial solar eclipse?

Back

In a total solar eclipse, the moon completely covers the sun, while in a partial solar eclipse, only part of the sun is obscured.

Front

What causes the moon to appear to change size during a solar eclipse?

Back

The moon appears to change size because it is at different distances from Earth during its orbit.

Front

What is the significance of the term 'umbra'?

Back

Umbra refers to the darkest part of a shadow, where a total eclipse can be observed.

Front

What is the significance of the term 'penumbra'?

Back

Penumbra is the lighter part of a shadow, where a partial eclipse can be seen.

Front

Why does a lunar eclipse only occur during a full moon?

Back

A lunar eclipse occurs during a full moon because that is when the Earth is directly between the sun and the moon.

Front

What is the average distance the moon is drifting away from Earth each year?

Back

The moon is drifting away from Earth at an average rate of about 3.8 centimeters per year.