Stars
telescopes
stars
100
What is the scientific study of stars?
astronomy
100
telescopes which bend light to make objects appear larger
refracting telescopes
100
The hottest stars are this color
blue
200
What is the difference between apparent magnitude and absolute magnitude?
Apparent magnitude is how bright a star appears to us.  Absolute magnitude is how bright a star really is.
200
Invented the first telescope in 1609
Galileo
200
The coolest stars are this color
Red
300
Invented a reflecting telescope
Newton
300
Closest star to earth
the sun
400
detect objects that do not give off much light
radio telescopes
500
breaks starlight into all its colors
spectroscope
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