Night Sky Observer's Guide Volume 2: Spring and Summer Planispheres the North America and Pelican

the North America and Pelican nebulae

but you will probably soon find yourself recognizing a star ' s age by its color

Even with 8 and 10-inch telescopes

Venus) or 10-day (Sun

Night Sky Observer's Guide Volume 2: Spring and Summer Planispheres the North America and PelicanBy George Robert Kepple and Glen Sanner. The original purpose of The Night Sky Observers Guide was to close the gap between observing literature and modern optics. It provided the owner of a medium or large aperture telescope with some idea of what to look for in such instruments both what objects can be seen, and what details may be seen within these objects. Now, with four volumes, it has become an indispensable resource for observing. The Night Sky