The deepest canyon in the solar system is on the planet:
A. Earth
B. Jupiter
C. Mercury
D. Venus
E. Mars
Ans: E. Mars
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What methodology do astronomers use to map the inside of the Sun?
a. coronagraphy b. magnetic field mapping c. helioseismology d. chromography e. heliogeology
Which of the following stars would be most likely to have the same abundance of elements heavier than helium as a red main sequence star in globular cluster M13?
A) a red main-sequence star in the disk of the Milky Way B) red giant in globular cluster M13 C) None of these choices
An imaginary line from one geographic pole to the other along the surface of Earth perpendicular to the equator is called
a. a longitude. b. a meridian. c. the International Date Line. d. a parallel.
________ binary star systems are important because they allow astronomers to determine the mass and the ________ of the stars in the system.
A. Spectroscopic; temperature B. Eclipsing; temperature C. Visual; temperature D. Eclipsing; diameter E. Spectroscopic; diameter