8.8A H-R Diagram Mini Flashcard 2

Front

What is the Hertzsprung-Russell (H-R) diagram?

Back

A graphical tool used to classify stars based on their brightness (luminosity) and temperature (color).

Front

What classification does Regulus belong to on the H-R diagram?

Back

Main Sequence Stars.

Front

How does Betelgeuse compare to the Sun in terms of brightness and temperature?

Back

Betelgeuse is cooler and brighter than the Sun.

Front

What type of star has a surface temperature of about 3,800 K and a luminosity of about 5,000 times greater than the Sun?

Back

Red Giant.

Front

Which class of star is about as bright as our Sun and has a surface temperature of 25,000 K?

Back

White Dwarf.

Front

Which classification of stars shows the greatest range of temperatures and brightness?

Back

Main Sequence.

Front

What is luminosity in the context of stars?

Back

Luminosity refers to the total amount of energy emitted by a star per unit of time, often compared to the Sun's brightness.

Tags

NGSS.HS-ESS1-1

Front

What does the color of a star indicate about its temperature?

Back

The color of a star indicates its surface temperature; blue stars are hotter, while red stars are cooler.

Front

What are Super Giants?

Back

Super Giants are very large stars that are much brighter than the Sun and have a high luminosity.

Front

What are White Dwarfs?

Back

White Dwarfs are small, dense stars that are the remnants of stars that have exhausted their nuclear fuel.

Tags

NGSS.HS-ESS1-3