Stellarium is a free sky visualtion
software program that is available for PC, Mac, and Unix operating systems.
We will be using it in class, and you might want to download and install
a copy for yourself
Meridian program that I used
in class (including a user's guide). The file is in zip format (Windows
should be able to automatically unzip it) Executable is for Windows only.
Help on scientific notation Having
trouble with representing very large or very small numbers? Go to our tutorial
page on scientific notation, and try out some practice problems (with answer
Help on conversion of units What
exactly is 45 Astronomical Units? Can we write that in miles so that I
can understand the answer? Learn how to convert from one set of units to
another, so that the numbers make sense.
The Varying Night Sky
Astronomy Notes - Solid lessons
on basic astronomy
Nine Planets - a tour of the Solar