What are the small bits of rock and metal that collide with Earth's atmosphere?
a. meteors
b. comets
c. asteroids
d. meteorites
e. meteoroids
a
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Where would the celestial equator appear to be located for an observer standing directly on one of the Earth's poles? Hint: Change your location on the Earth to the North Pole.
a. Directly overhead at the zenith. b. Between the zenith and the horizon. c. It would be parallel to and coincident with the horizon d. The celestial equator would not be visible.
The leading hemisphere of Iapetus is much darker than the back side, which is icy
Indicate whether the statement is true or false
What are two advantages of CCDs over photographic films for astronomy?
What will be an ideal response?
An electromagnetic wave with a wave length about the same as the diameter of an apple would be
A. x-ray. B. UV. C. infrared. D. microwave. E. radio wave.