The Sun and Stars

Front

What elements make up most of the sun’s mass?

Back

Hydrogen and helium are the primary elements that constitute most of the sun's mass.

Front

Which star is more massive than our Sun but has a lower surface temperature?

Back

Aldebaran is a star that is more massive than our Sun but has a lower surface temperature.

Front

What is the primary process that generates energy in the sun?

Back

Nuclear fusion is the primary process that generates energy in the sun.

Front

What is the order of an average star’s life cycle?

Back

The life cycle of an average star follows the order: main sequence, giant, white dwarf.

Front

What color are the hottest stars?

Back

The hottest stars are blue.

Front

What is nuclear fusion?

Back

Nuclear fusion is the process where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What is a white dwarf?

Back

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

Front

What is the main sequence phase of a star?

Back

The main sequence phase is the longest stage in a star's life cycle where it fuses hydrogen into helium in its core.

Front

What is a giant star?

Back

A giant star is a large star that has expanded and cooled after exhausting the hydrogen in its core.

Front

What is the significance of the Hertzsprung-Russell diagram?

Back

The Hertzsprung-Russell diagram is a scatter plot of stars showing the relationship between their absolute magnitudes and stellar classifications.