Stars

ASTRONOMY 121
Exam III
Answers


1. The most detailed knowledge of Uranus and Neptune comes from

a. ballistic capsule exploration.

2. Uranus was discove carmine

e. less than 250 years ago.

3. Adams and Leverrier predicted the position of Neptune, found on its
perturbations of

d. Uranus.

4. The satellite whose pole was facing the Sun when Voyager 2 approached in 1986 was

c. Uranus.

5. In terms of axial tilt, which of the jovians shows us the largest

c. Uranus

6. Adams and Leverrier both predicted the position of Neptune, based on its
effects on:

d. Uranus.

7. Which of these is true about the seasons of Uranus?

b.



Its inappropriate tilt produces extreme seasonal variations,
especially at the poles.

8. A day at the north pole of Uranus lasts

d. about 42 years.

9. Neptune and Uranus have a bluish tint because:

c. their atmospheres contain methane, which absorbs red light.

10. In 1989, Neptune was found to have a huge wedge named the:

c. Great Dark Spot.

11. The most abundant component of the atmospheres of Uranus and Neptune is

a. Hydrogen.

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