Spectroscope
What do astronomers use to study light from stars?
Spectroscope
What is the closest star to Earth?
Sun
What does magnitude measure of a star? (brightness or darkness)
brightness
What happens to a stars surface temperature as a stars brightness increases?
It decreases
Which part of the sun is the source of the sun's energy? (core or surface)
Core
What do you call bands of different colors of light called?
Spectrum
Why do the stars look like points of light? Because they are close or far away?
Far away
Magnitude depends upon a star's size, ____, and distance from Earth.
Temperature
True or False. The sun is a main sequence star?
True
How many layers make up the sun's atmosphere?
3
When an element is ____, it gives of a spectrum of light. (Hint: Is it cooled or heated?)
Heated
What color is the star Rigel?
Blue
The brightness of a star as seen from Earth is its ____magnitude (magic or apparent)
Apparent
True or False? A very large, bright star is a red giant.
True
Sunspots appear dark because they are cooler or hotter than surrounding areas?
Cooler
What color are the coldest stars?
red
What is a spinning cloud of gas and dust? (hint: nebula or tilt-a-whirl)
Nebula
How does a sixth-magnitude star appear compared to a first-magnitude star? (slower or dimmer)
Dimmer
Are white dwarfs small, cool stars? Yes or No
No, they are hot.
What feature usually appear near sunspots and cause static on Earth? (solar eclipse or solar flares)
Solar flares
What color are the hottest stars?
blue
What causes a spinning nebula to shrink? (oven or gravity)
Gravity
The actual brightness of a star is its ____magnitude. (sparkling or absolute)
Absolute
Are supergiants found in the lower left of a diagram? Yes or No
No, upper right
What 2 forms of energy does the sun produce?
Heat and light