Review Introductory Astronomy Exam #1
Name_______________________________________
Class Meeting Time___________________
Answer problems on a separate sheet. 20 points extra-credit. Due Friday/Tuesday. Ask questions next class if youo
need a refresher.
1. Saturn is now about 1.64109 kilometers from the Earth. How many AU is that?
2. If Superman had flew as fast as a speeding bullet (800 m/s), how long would it take for him to fly from Earth to
the Sun?
3. If the Solar System (actual diameter 80 AU) were the diameter of a quarter (2.43 cm), how large would the
diameter of the Milky Way be in kilometers?
4. On the image of the celestial sphere below, assuming that the observer is located in Miami, Florida (26 N),
draw or label the following:
a. The position of the zenith
b. The meridian
c. The horizon
d. Polaris (the NCP really)
e. The SCP
f. The Celestial Equator
g. The path of a northern star
h. The path of a southern star
W
S
14 altitude
-14 altitude
N
E
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5. You are observing from the location on
the world map below designated as D.
Draw the apparent motion of the stars
looking North, East, South and West in
the boxes provided below. Include all
relevant time and quantitative
information.
Altitude
60
50
40
30
20
10
North
East
South
West
Altitude
60
50
40
30
20
10
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You are observing from Stockholm, Sweden( 59° N). Answer the following questions. You may use the figure below to
help answer the questions.
6. Place the following objects correctly on the celestial sphere drawing to the right and label their altitudes and
declinations
a. The zenith
b. The NCP
c. The SCP
d. The full extent of the circumpolar region
e. The southernmost visible star
7. What would be the maximum altitude
of the Celestial Equator? What would
its azimuth be at max. altitude?
8. Would a star at declination +70 be
visible? If yes what would be its
maximum altitude?
S
N
9. Would a star at declination -50 be
visible? If yes what would be its
maximum altitude?
10. How long would a star at 0 declination be above the horizon?
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