The seas and craters of the moon are something that you
almost never get tired of seeing by telescope. As the
moon goes through its phases, the angle of the light is
constantly changing and so the rough terrain of the moon
seems to continuously change. One of the most interesting
things is to see long shadows cast by mountain ranges
on the moon cast onto the broad flat seas that were created
billions of years ago by cooling lava oceans. The names
of the seas and craters are particularly poetic. Check
out the moon map below for the names of the most prominant
seas and craters.
If you've never seen a lunar eclipse before,
it is a wonderful (and easy) thing to see. Over the course
of about two hours, the shadow of the earth passes over
the face of the moon. If you look at the moon, you can actually
see the curvature of the larger sphere of the Earth. As
the moon is almost totally eclipsed, it turns an amazing
reddish orange color. The red orange color is due to the
Earth's atmosphere scattering the blue rays and passing
through the red light to reach the moon. This optical phenomenon
works just like a sunset except that from the moon's perspective
it is seen all the way around the perimeter of the Earth.
Imagine what that must look like from the surface of the
moon. Perhaps one day there will be toursists that visit
the moon just for the purpose of viewing these events!