Stars Passage

Front

The brightness of a star as seen from Earth is called its ______ magnitude.

Back

Apparent magnitude.

Front

Stars are primarily made of which two elements?

Back

Hydrogen and Helium.

Front

Which star has the highest absolute magnitude?

Back

Red Supergiant -10.

Front

Which star has an absolute magnitude of 0.2?

Back

Arcturus.

Front

What process produces the light and heat of stars?

Back

Nuclear fusion.

Front

What is absolute magnitude?

Back

A measure of the intrinsic brightness of a star, defined as the brightness it would have at a distance of 10 parsecs.

Front

What is the difference between apparent magnitude and absolute magnitude?

Back

Apparent magnitude is how bright a star appears from Earth, while absolute magnitude is its true brightness at a standard distance.

Front

What is a Red Supergiant?

Back

A very large star that is in the late stages of its life cycle, characterized by its red color and high luminosity.

Front

What is a White Dwarf?

Back

A small, dense star that is the remnant of a low to medium mass star after it has exhausted its nuclear fuel.

Front

What is the main fuel for nuclear fusion in stars?

Back

Hydrogen.