Chapter 1 Charting the Heavens: The Foundations of Astronomy
1.1 True/False
1) The distances to bodies in the solar system are a few light minutes to light hours.
Answer: TRUE
Diff: 2 Page Ref: 1.1
2) It was Aristotle who used the scientific method to show the Earth was a sphere.
Answer: TRUE
Diff: 2 Page Ref: 1.2
3) Constellations are close clusters of stars, all at about the same distance from the Sun.
Answer: FALSE
Diff: 1 Page Ref: 1.3
4) From the South Pole, Polaris would appear directly overhead.
Answer: FALSE
Diff: 1 Page Ref: 1.3
5) Only at the equator are all the stars visible over the course of the year.
Answer: TRUE
Diff: 1 Page Ref: 1.3
6) Over the course of a night, Polaris moves less than any other visible star in the sky.
Answer: TRUE
Diff: 2 Page Ref: 1.3
7) There are 3,600 arc seconds in a degree.
Answer: TRUE
Diff: 2 Page Ref: More Prec. 1-1
8) A star with a right ascension of 2.6 hrs will rise 2.6 hours after the vernal equinox.
Answer: TRUE
Diff: 3 Page Ref: More Pre. 1-1
9) In general, the brightest star in a given constellation is designated as alpha.
Answer: TRUE
Diff: 1 Page Ref: More Prec. 1-2
10) Latitude and right ascension are coordinate systems used to find objects on the Celestial
Sphere.
Answer: FALSE
Diff: 1 Page Ref: More Prec. 1-2
11) If your latitude is 40 degrees north, then stars that pass through your zenith have a
declination of +40 degrees.
Answer: TRUE
Diff: 1 Page Ref: More Prec. 1-2
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, 12) The south celestial pole is located at a declination of -90 degrees.
Answer: TRUE
Diff: 1 Page Ref: More Prec. 1-2
13) At apogee the moon is at its farthest from earth and thus appears smaller than normal.
Because of this it can produce only annular solar eclipses, but not total solar eclipses.
Answer: TRUE
Diff: 2 Page Ref: More Prec. 1-2
14) If a star rises about 9 PM tonight, and with the sidereal day being four minutes less than the
solar one, then in a month it will rise about 7 PM.
Answer: TRUE
Diff: 3 Page Ref: 1.4
15) From Earth, the Sun and Moon have about the same angular diameter.
Answer: TRUE
Diff: 1 Page Ref: 1.6
16) The Full Moon rises at sunrise, and sets at sunset.
Answer: FALSE
Diff: 1 Page Ref: 1.6
17) From full moon to third quarter moon takes about a week.
Answer: TRUE
Diff: 2 Page Ref: 1.6
18) The first quarter moon will rise about noon, and set about midnight.
Answer: TRUE
Diff: 2 Page Ref: 1.6
19) As it orbits the Earth, the Moon appears to move eastward about its own diameter every
hour.
Answer: TRUE
Diff: 3 Page Ref: 1.6
20) The parallax shift of a star would be greater if viewed from Mars than from Earth.
Answer: TRUE
Diff: 2 Page Ref: 1.7
1.2 Multiple Choice
1) Which of the choices below correctly lists things in order from largest to smallest?
A) Local Group, Solar System, Milky Way, Universe
B) Universe, Milky Way, Local Group, Solar System
C) Solar System, Local Group, Universe, Milky Way
D) Universe, Local Group, Milky Way, Solar System
E) Milky Way, Universe, Solar System, Local Group
Answer: D
Diff: 2 Page Ref: 1.1
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,2) Modern scientific theories are NOT:
A) testable.
B) continuously tested.
C) simple.
D) perfect.
E) elegant.
Answer: D
Diff: 1 Page Ref: 1.2
3) Aristotle's hypothesis was that:
A) lunar eclipses were created by our shadow.
B) only a spherical Earth would always cast a circular shadow on the Moon.
C) lunar eclipses would have to happen every full moon.
D) the Sun lay at the center of the planet orbits.
E) the Moon orbited the Earth.
Answer: B
Diff: 2 Page Ref: 1.2
4) About how many stars are visible on a clear, dark night with the naked eye alone?
A) a few dozen
B) a few hundred
C) a few thousand
D) tens of thousands
E) millions and millions
Answer: C
Diff: 1 Page Ref: 1.3
5) Into how many constellations is the celestial sphere divided?
A) 12
B) 44
C) 57
D) 88
E) 110
Answer: D
Diff: 1 Page Ref: 1.3
6) What are constellations?
A) Groups of galaxies gravitationally bound and close together in the sky
B) Groups of stars making an apparent pattern in the celestial sphere
C) Groups of stars gravitationally bound and appearing close together in the sky
D) Ancient story boards, useless to modern astronomers
E) Apparent groupings of stars and planets visible on a given evening
Answer: B
Diff: 2 Page Ref: 1.3
7) Where on Earth would you be if Polaris was at your zenith?
A) North Pole
B) Arctic Circle
C) Tropic of Cancer
D) Equator
E) It lies overhead everywhere on Earth.
Answer: A
Diff: 2 Page Ref: 1.3
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, 8) Where on Earth can you observe all the stars in the sky over an entire year?
A) North Pole
B) Arctic Circle
C) Tropic of Cancer
D) Equator
E) Everyone on Earth can see the whole sky.
Answer: D
Diff: 2 Page Ref: 1.3
9) In general, what is true of the alpha star in a constellation?
A) It is the brightest star in the constellation.
B) It is the easternmost star in the constellation.
C) It is the westernmost star in the constellation.
D) It is the reddest star in the constellation.
E) It is the star that is closest to Earth.
Answer: A
Diff: 1 Page Ref: More Prec. 1-2
10) What is the range of values for declination?
A) +90 to -90 degrees
B) +180 to -180 degrees
C) +23.5 to -23.5 degrees
D) 0 to 23 hours
E) Correct answer is not given.
Answer: A
Diff: 1 Page Ref: More Prec. 1-2
11) What is the range of values for Right Ascension?
A) 90 degrees to 0 degrees
B) 0 to 360 degrees
C) +23.5 to -23.5 degrees
D) 0 to 12 hours
E) 0 to 23 hours
Answer: E
Diff: 1 Page Ref: More Prec. 1-2
12) While watching a star, you see it moves 15 degrees across the sky. How long have you been
watching it?
A) 1 hour
B) 3 hours
C) 15 minutes
D) 15 seconds
E) 1 minute
Answer: A
Diff: 2 Page Ref: More Prec. 1-2
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