The Sun and Other Stars

Front

What properties are used to classify stars?

Back

Size, brightness, and temperature.

Front

What are the three layers of the Sun's atmosphere?

Back

Photosphere, chromosphere, and corona.

Front

How can visible energy and non-visible energy be distinguished?

Back

By their different wavelengths.

Front

What factors account for how bright a star appears in the night sky?

Back

The star's brightness, size, and distance.

Front

What happens to temperature as you read an HR diagram from left to right?

Back

Temperature decreases.

Front

What is the main source of energy for the Sun?

Back

Nuclear fusion in its core.

Front

What is the difference between a red giant and a white dwarf?

Back

A red giant is a large, luminous star in a late stage of evolution, while a white dwarf is a small, dense remnant of a star that has exhausted its nuclear fuel.

Front

What is the significance of the Hertzsprung-Russell diagram?

Back

It classifies stars based on their luminosity, color, temperature, and evolutionary stage.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion of a star, marking the end of its life cycle.

Front

What is the role of gravity in star formation?

Back

Gravity pulls together gas and dust in space to form stars.