Front

What is the average size and temperature of our sun?

Back

Our sun is considered average-sized and has an average temperature.

Front

What color are very hot stars?

Back

Very hot stars are blue.

Front

From what do all stars form?

Back

All stars are formed from a nebula.

Front

If Star R and Star S have the same luminosity but Star S is farther from Earth, which star has the highest apparent magnitude?

Back

Star R has the highest apparent magnitude.

Front

What is the brightness of a star at a standard distance called?

Back

It is called absolute (magnitude) brightness.

Front

What is a nebula?

Back

A nebula is a giant cloud of dust and gas in space, where stars are born.

Front

What is luminosity?

Back

Luminosity is the total amount of energy emitted by a star per unit time.

Tags

NGSS.HS-ESS1-1

Front

What is apparent magnitude?

Back

Apparent magnitude is how bright a star appears from Earth.

Front

What is the difference between apparent magnitude and absolute magnitude?

Back

Apparent magnitude is the brightness as seen from Earth, while absolute magnitude is the brightness at a standard distance of 10 parsecs.

Front

What factors affect a star's apparent brightness?

Back

A star's apparent brightness is affected by its luminosity and its distance from the observer.