Stars and their properties

What category on the H-R diagram has the majority or the most stars?

• Super giants
• White Dwarfs
• Giants
• Main Sequence

Apparent (magnitude) brightness is affected by a star's distance from Earth.

• False
• True

Which property of a star is the brightness of a star at a standard distance?

• Apparent (magnitude) brightness
• Absolute (magnitude) brightness
• Luminosity
• Size of the star

All stars are formed from a  __________?

• giant
• black hole
• white dwarf
• nebula

Our sun is average-sized and average temperature.

• False
• True

Very hot stars are what color? 

• Blue
• Yellow
• Red
• Orange

Star R and S both have the same luminosity of 100, if Star S is 10 ly farther from Earth which star has the highest apparent magnitude?

• Star R
• Star S
• Both Star S and R

Most stars we see in the night sky are actually part of binary star systems.

• False
• True

A plot of the surface temperatures of stars compared to their absolute magnitude is called

• an H-R diagram
• constellation map
• a graph
• spectrum.

what is the luminosity of the sun?

• 100 
• 1
• .001 
• 1,000