Download FPC Name Astronomical Observations Period _____ Date ______

FPC
Astronomical Observations
Name _______________________
Period _____ Date ____________
The point of this assignment is to make some simple observations on your own and to use them to put together
your own model for movement of astronomical bodies, much as people have done throughout history. Although
you have the benefit of scientific discoveries that were unknown to early observers, you will not benefit from
this assignment unless you make regular, methodical observations with your own eyes. Since this is Portland,
we may have some limitations due to weather, so remember to look skyward when you can!!!
You will be graded on organization, completeness, and accuracy. It will be important to make an
organized chart for your moon observations and to record all information clearly and completely.
The Sun
Do not look directly at the sun while making these observations. It is both dangerous and unnecessary.
1. Make a sketch of either the eastern horizon or the western horizon on a full sheet of paper, showing any
prominent objects as reference points. (If you cannot see the actual horizon conveniently, sketch whatever
"artificial horizon" confronts you.)
2. Record the position of the sun each time you are able to see either sunrise or sunset, and mark the time and
date of the observation. Try to make at least 4 observations spaced about a week apart.
3. Write a summary statement describing the patterns you observed in terms of where the sun rose/set on the
horizon and the time the sun rose/set.
The Moon
1. Try to observe the moon on every clear day, recording the date, the time, appearance of the moon (draw it!)
and any observations (color of moon, sky conditions, etc.) in a data chart. Try to make at least 8
observations over a month's time. Remember that the moon can be out during the day as well as at night.
Extra Credit (10 points)
Stars
1. Choose two stars that are in different regions of the night sky. Describe their position (north, south, east,
west, high, central, low, etc.) and make a sketch of the local star pattern (constellation). Record the date and
time of your observation.
2. Locate the same two stars a couple of hours later. Have they changed? If so, describe the change. Record the
date and time of the observation.
3. Record the same star again in a few weeks at the same time as your initial observation. Has it changed its
position? If so, describe the change. Record the date and time of your observation.
This observation assignment will be due on ________________________ and I will ask to see your
observations on ________________________ to encourage you to get started early.