Magnitudes

Why do other stars appear so much smaller than the sun?

• They are actually much smaller
• They are so far away
• They are not as bright
• They are dwarf stars

What color of star is the hottest?

• Blue
• Red
• Yellow
• Orange

True or False
The Sun is the biggest star in the sky.

• True
• False

What is apparent brightness?

• The measure of how bright a star appears to an observer on Earth.

• How far away a star is from Earth.

• The brightness of a star.

• A measure of how bright the star would be if all stars were the same distance from Earth.

The apparent __ is how a star looks from Earth.

• dimmer

• closer

• brightness

• farther

Our sun is a __- sized star.

• small

• medium

• large

• extra small

Stars that are far away appear __ even though they might be brighter than our own Sun.

• brighter

• farther

• closer

• dimmer

Which measurement allows astronomers to compare the brightness of stars?

• parallax

• red shift

• absolute brightness

• apparent brightness

Which measurement allows astronomers to compare the brightness of stars?

• parallax

• red shift

• absolute brightness

• apparent brightness

Which star is closest to Earth?

• Betelgeuse
• Orion
• the sun
• Antares