Moon the correct values of about 60 and 0.273 respectively. Archimedes (287–212 BC) designed a planetarium that could calculate the motions of the Moon and other objects in the Solar System. During the Middle Ages, before the invention of the telescope, the Moon was increasingly recognised as a sphere, though many believed that it was "perfectly smooth". In 1609, Galileo Galilei drew one of the first telescopic drawings of the Moon in his book and noted that it was not smooth but had mountains and craters. Telescopic mapping of the Moon followed: later in the 17th century, the efforts of Giovanni
Craters of the Moon National Monument and Preserve the Moon Wilderness Area and Backcountry Area, the roadless southern and major part of the monument. Craters of the Moon Campground has 51 sites – none of which can be reserved in advance. Camping facilities are basic but do include water, restrooms, charcoal grills, and trash containers. National Park Service rangers present evening programs at the campground amphitheater in the summer. Camping enables visitors to enjoy the park during the evening and morning, when the heat, glare and wind are far less. A Lunar Ranger program enables children to earn an embroidered patch in a few hours. Backcountry hiking is