What kinds of stars are being looked at to find these hiding bandits?
A: Stars with small parallaxes
B: Stars with large parallaxes
C: Stars with temperatures much greater than the Sun
D: Stars with radii much greater than the Sun
E: Stars with radii much smaller than the Sun
Ans: B: Stars with large parallaxes
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What type of eclipse can be observed when part of Earth is in the shadow of the Moon?
An electron is in its lowest energy level when
a. it is free of nuclear forces. b. its momentum is zero. c. it is in its ground state. d. none of these.
Which of the following terms is(are) used to describe a division of a stream's load?
a. Bed load only. b. Suspended load only. c. Dissolved load only. d. All of the above
Describe three ways in which astronomers can distinguish between interstellar absorption lines and stellar absorption lines
What will be an ideal response?