THE UNIVERSITY OF LETHBRIDGE
DEPARTMENT OF PHYSICS
Astronomy 2070 – Solar System
Fall 2007
Assignment #1
Due Oct. 2, 2007
Note:
Assignments are due at the beginning of class
Assignments are to be done on standard size loose leaf (8 1/2 X 11)
pages.
Pages must be stapled together (marks deducted for not stapled).
Where a question requires a calculation to find the answer, you must show
your work. Simply recording the answer, even if it is correct, is worth
nothing.
Questions:
Chapter 1 - Questions: 44,51
Chapter 2 - Questions: 24,28,29,30,32,33,34,36,45,51
Chapter 4 - Questions: 29,32,34,36,51
Problem 1.
A baseball is 7.50 cm in diameter. How far away from you must it be so that its
angular diameter appears to be:
(i)
(ii)
(iii)
1 degree?
1 arc-minute?
1 arc-second?
Problem 2
The latitude and longitude of Lethbridge is about 50 o N and 113o W. As seen
from Lethbridge:
(i)
(ii)
iii)
What is the altitude and azimuth of the North Celestial Pole?
What is the altitude and azimuth of the point in the sky where the meridian
crosses the celestial equator?
What is the maximum elevation (altitude) of the Sun above the horizon,
and when does this occur?