# Polaris Latitude Worksheets - DOC by qxv49469

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```									PHYSICAL EARTH                                               Name_____________________________________

Period________________

To tell someone the location of a star, you must give him a compass direction and the altitude (angle above the
horizon) of your line of sight. The next procedures may help you to understand that the altitude of Polaris has a
special significance.

Observer                                 Latitude                        Altitude of Polaris
1.
2.
3.
4.

Procedures

A.     The diagram shows four observers on the surface of the globe. For each observer there is a horizontal
and a line of sight to Polaris. Use your protractor to measure the angle from the center of the earth that
describes the latitude of each observer. Enter the latitude of each observer in the first column above.

B.     Use your protractor to measure the angle between the horizontal and the line of sight to Polaris for each
of the four observers. Enter these angles in the second column above.

40d372be-f59d-4fbe-b2ee-5f47f4d8b28d.doc   07/05/11
Interpretations

1.     How do the angles in the second column compare with the angles in the first column?

__________________________________________________________________________________

__________________________________________________________________________________

__________________________________________________________________________________

2.     An observer located at 42°n. lat. will see Polaris at ___________________ degrees above the horizon
line.

3.     Will an observer located at 5°s. lat. see Polaris? ____________________ why or why not?

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

4.     Why are the arrows pointing toward Polaris, parallel? ________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

40d372be-f59d-4fbe-b2ee-5f47f4d8b28d.doc   07/05/11

```
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