The night sky has always fascinated individuals and with good reason. The heavens are teeming with life but sadly most of it is not visible to the naked eye. Now with the study of Astronomy and the invention of telescopes the moon stars and planets are all now within reach. With the right instruments there s no telling what you might see. The Celestron 6 SCT Optical Tube Assembly is ideal for capturing breathtaking views of galaxies star clusters nebulae and planets. Celestron 6 SCT Optical Tube Assembly has a number of features that provide you with optimum light transmission and brighter crisper images ideal for the astronomy enthusiast. The night sky is now in your hands. Features With an optical tube that measures a mere 16-inches in length and weighs just 10 pounds this mid level optical instrument meets the demands of observers and astrogimagers who want a telescope that s more portable than a reflector or refractor.The scope offers a large 6 aperture and a long focal length of 1500 mm. Celestron s unique StarBright XLT optical coatings dramatically increase light transmission by up to 97 percent on its Schmidt corrector lenses. Vew pinpoint stars across the largest imaging sensors in bright crisp detail and capture breathtaking sharp flawless astroimages. The 6 Schmidt-Cassegrain Optical Tube Assembly has an aluminum optical tube and comes with a 25 mm eyepiece and a visual back which allows for use with other 1.25 accessories. The 6x30 finderscope helps accurately find objects in the night sky and the star diagonal provides more comfortable viewing position when observing objects that are high in the sky. The 6 OTA includes a dovetail rail compatible with CG-5 Advanced Series mount.