Test Bank for Astronomy Today (9th Edition, by Eric Chaisson) Chapter 1 to 18

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TEST BANK
Astronomy Today



by Eric Chaisson, Steve McMillan
N
9th Edition
U
R
SE
D
O
C
S


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Chapter 0 C h a r t i n g the Heavens: The Foundations of Astronomy

1) Right ascension in the sky is very similar to latitude on the Earth. Answer:
FALSE
Diff: 1
Section Ref.: 0.1

2) Latitude and right ascension are coordinate systems used to find objects on the celestial sphere.
Answer: FALSE Diff: 1
Section Ref.: 0.1

3) The celestial sphere is divided into 88 modern constellations. Answer:
N
TRUE
Diff: 1
Section Ref.: 0.1
U
4) In the sky, declination is measured in degrees north or south of the celestial equator. Answer:
TRUE
Diff: 1
R
Section Ref.: 0.1

5) The south celestial pole is located at a declination of -90 degrees. Answer:
SE
TRUE
Diff: 1
Section Ref.: 0.1

6) In general, the brightest star in a given constellation is designated as alpha. Answer:
TRUE
Diff: 1
D
Section Ref.: 0.1

7) Constellations are close clusters of stars, all at about the same distance from the Sun. Answer:
O
FALSE
Diff: 1
Section Ref.: 0.1
C
8) The closest terrestrial analog to hours of right ascension is angle of longitude. Answer:
TRUE
S

Diff: 2
Section Ref.: 0.1




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9) Over 20,000 stars are visible to the naked eye on the darkest, clearest nights. Answer:
FALSE
Diff: 2
Section Ref.: 0.1

10) A star with a right ascension of 2.6 hrs will rise 2.6 hours after the vernal equinox. Answer:
TRUE
Diff: 3
Section Ref.: More Prec. 0.1

11) A tropical year is the same as a sidereal year. Answer:
FALSE
Diff: 1
N
Section Ref.: 0.2

12) The sidereal day is determined by the Earth's rotation with respect to the stars. Answer:
TRUE
U
Diff: 1
Section Ref.: 0.2
R
13) The vernal equinox marks the beginning of spring in the northern hemisphere. Answer:
TRUE
Diff: 1
SE
Section Ref.: 0.2

14) There are 3,600 arc seconds in a degree. Answer:
TRUE
Diff: 2
Section Ref.: More Prec. 0.1
D
15) An hour of right ascension corresponds to 60 degrees in the sky. Answer:
FALSE
Diff: 2
O
Section Ref.: 0.2

16) From Earth, the Sun and Moon have about the same angular diameter. Answer:
C
TRUE
Diff: 1
Section Ref.: 0.2
S
17) At the solstices, the Sun's declination will be 23.5 degrees from the equator. Answer:
TRUE


Diff: 2
Section Ref.: 0.2

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18) At the equinoxes, the declination of the Sun must be zero degrees. Answer:
TRUE
Diff: 2
Section Ref.: 0.2

19) As it orbits the Earth, the Moon appears to move its own diameter (0.5 degrees) eastward every hour
against the background stars.
Answer: TRUE Diff: 3
Section Ref.: 0.3

20) From full moon to third quarter moon takes about a week. Answer:
TRUE
Diff: 1
N
Section Ref.: 0.3

21) Only people in the Moon's umbral shadow can see a total solar eclipse. Answer:
TRUE
U
Diff: 1
Section Ref.: 0.3
R
22) If we are the Moon's penumbra, then we will see a partial lunar eclipse. Answer:
FALSE
Diff: 1
SE
Section Ref.: 0.3

23) There is a solar eclipse of some kind every new moon. Answer:
FALSE
Diff: 1
Section Ref.: 0.3
D
24) Eighteen days past new moon, the Moon's phase is waning gibbous. Answer:
TRUE
Diff: 2
O
Section Ref.: 0.3

25) A total solar eclipse will only occur when the new moon is both on the ecliptic and at its greatest
C
distance from Earth.
Answer: FALSE Diff: 2
Section Ref.: 0.3
S
26) The larger the parallax shift, the closer an object is to us. Answer:
TRUE
Diff: 1
Section Ref.: 0.4

27) The parallax shift for all stars is very small.