For a beginner the moon is certainly a good place to start. As it is bright, easily identifiable and our closest celestial neighbour. The full moon may be a wonderful sight to the naked eye but it is the least rewarding when viewing through a telescope as the sun is shining straight down on the surface and casts very little shadow as well as being uncomfortable on the eye (although filters can be used to reduce the glare).
In general the best time to observe the moon is when it is less than 'half lit'. The line which separates the brightly sunlit portion from the rest of the disk is called the 'Terminator'. Craters and other features along the terminator cast shadows thus increasing contrast.
|Weymouth Astronomy Estab 2006|