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\rhead{Earth, Moon, and Planets Lab (Tue 7-10pm)}
\chead{}
\lhead{Exercise set 5}
\renewcommand{\rightmark}{}
\lfoot{Roban Hultman Kramer} \cfoot{\thepage} \rfoot{Spring 2006}

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\begin{document}
\begin{center}
\huge Exercise set five
\end{center}

\section{Catching up}

Today's a chance to catch up on a few things.

\subsection*{Instructions}

\begin{enumerate}

\item Finish exercise 5 from set 4 (``Orbit Explorer''), if you
  haven't already. (Don't do the very last part starting with ``Now
  set up...'').

\item Make new planet observations for your long-term project. Try to
  use stars close to your planet. Note the addition to the assignment:
  also measure the angle between the planets.

\item Plot the positions of the planets based on your new
  observations. See if the separation you measured between your
  planets matches what you end up with on your chart.

 \item If you're not getting good results, you might want to try
   re-calibrating your ``measuring devices''. Either repeat the
   measurements with ruler and string, or calibrate based on known
   separations in the sky (which you can measure off your chart).

\item Do the following exercise.

\end{enumerate}

\section{Telescope observing I}

\subsection*{Materials} telescope set up, lab notebook

\subsection*{Instructions}

\textit{BE CAREFUL ON THE ROOF: there is ice!!!} There is only one
telescope available, so share it nicely. 

Observe Mars, Saturn, and the Moon through a telescope. Look at at
least one of the objects with three different eyepieces.

\textbf{Note the focal length of the eyepiece that you are using for each.}

\begin{enumerate}

\item Describe what you saw. Feel free to sketch.

\item What surprised you?

\item What's different about the different objects?

\item What's different about the different eyepieces?

\end{enumerate}





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