Flashcard on Spectral Classification of Stars

Front

What percentage of stars are M-class stars?

Back

75%

Front

What type of stars are cooler in temperature AND of high luminosity?

Back

Red Supergiants

Front

Which star is the coldest?

Back

Red Star

Front

What color are B stars according to the spectral classification system?

Back

Blue-white

Front

Which class of stars is described as being relatively young and rare in the universe?

Back

B-class stars

Front

What is the spectral classification system?

Back

A system that categorizes stars based on their temperature, color, and spectral characteristics.

Front

What are O-class stars known for?

Back

They are the hottest and most luminous stars, often appearing blue.

Front

What is the temperature range of M-class stars?

Back

Approximately 2,400 to 3,700 K.

Front

What is the main sequence in stellar evolution?

Back

A continuous and distinctive band of stars that appears on plots of stellar color versus brightness.

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.