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The Celestron StarSense Explorer DX 5-inch Schmidt Cassegrain (SCT) Telescope provides the high-powered, advanced optics of an SCT combined with the revolutionary simplicity of the StarSense guidance technology. This compact 5-inch aperture telescope delivers stunningly sharp, high contrast images of the Moon, planets, and deep sky objects, without the typical length of a reflector or refractor. Using your smartphone, the StarSense app instantly aligns the telescope and guides you with directional arrows to thousands of celestial targets. Mounted on a stable, slow motion Altitude Azimuth (Alt-Az) mount, the StarSense Explorer DX 5-inch SCT is the ideal portable instrument for serious amateur astronomers who demand superb optical performance and fast, accurate location of difficult objects.