Orion 9820 Apex 90mm Maksutov-Cassegrain Telescope Nifty little 90mm (3.5") aperture Maksutov-Cassegrain telescope provides long focal length performance in a conveniently compact instrument 90mm aperture and 1250mm focal length Maksutov-Cassegrain optics for fantastic celestial and terrestrial views, especially at higher powers An ideal telescope for scanning the solar system for views of the Moon and planets, as well as globular star clusters and some bright nebulas Includes a 25mm Sirius Plossl eyepiece, 6x20 correct-image finder scope for accurate aiming during the day or at night, 45-degree correct-image diagonal, soft carry-case, and Starry Night astronomy software Does not include tripod or mount - either can be purchased separately