Celestron StarSense Explorer 12" Smartphone App-Enabled Dobsonian Telescope

StarSense Explorer: Smartphone-Guided Navigation in Minutes

Celestron's patented StarSense Explorer technology eliminates the complexity of finding celestial objects. Simply place your phone in the included dock, launch the app, and complete a quick alignment. The app uses your phone's camera and a Lost in Space Algorithm (LISA) to precisely determine where the telescope is pointing by matching star patterns in real-time.

Unlike planetarium apps that rely on less-accurate phone gyros, StarSense provides on-screen arrows that guide your movements, turning the bullseye green when your target is perfectly centered in the included 32mm eyepiece. You can explore a curated list of tonight's best objects or search for specific targets, all while learning more with detailed audio descriptions and information within the app.

A 12-Inch f/4.9 Primary Mirror: 1895x Light Gathering Power

At the heart of this telescope is a huge 305mm (12") primary mirror made from low-expansion Pyrex-equivalent glass. This immense aperture resolves detail down to 0.38 arcseconds (Dawes' Limit) and reaches a limiting stellar magnitude of 14.9, revealing faint stars and deep-sky objects with stunning clarity. All mirror surfaces feature Celestron's XLT reflective coatings for maximum light throughput and contrast.

This light-gathering power brings deep-sky objects to life. You can clearly resolve the dust lanes in the Andromeda Galaxy (M31), see the gaseous structure of the Orion Nebula (M42), and trace the faint arms of distant galaxies. Within the solar system, you'll see Jupiter's cloud bands and Great Red Spot, the Cassini Division in Saturn's rings, and the polar caps of Mars.

Engineered for Stability: A Robust Dobsonian Base and 2" Crayford Focuser

Aperture is useless without a stable platform. The StarSense Explorer 12" rests on a sturdy particle board altazimuth base designed for smooth, precise movements. It features large-diameter altitude bearings with an adjustable tensioning "brake" and Teflon azimuth bearings for effortless slewing. Side-panel bracing enhances rigidity, while an ergonomic panning knob on the tube lets you guide the scope without transferring hand heat to the optics.

• 2" Crayford Focuser: The included 2" Crayford focuser provides smooth, backlash-free focusing for achieving critical sharpness. It includes a 2" extension tube and a 2"-to-1.25" adapter, ensuring compatibility with a wide range of eyepieces.
• Integrated Handles: Despite its size, the telescope is designed for portability. Ergonomic handles on both the 49.8 lb optical tube and the 33.8 lb base make transport and assembly manageable.
• StarPointer Finderscope: For initial alignment or manual star-hopping, the included red-dot StarPointer™ finderscope makes it easy to aim the telescope.

StarSense Explorer 12" vs. 10" and 8": The Aperture Advantage

While all StarSense Explorer Dobsonians offer incredible ease of use, the 12" model represents a significant leap in optical capability. The choice between them comes down to how deep you want to see into the universe.

• vs. StarSense Explorer 10": The 12" Dobsonian gathers 1.44x more light, making faint galaxies and nebulae appear noticeably brighter and more detailed. This is the difference between merely detecting a galaxy and beginning to resolve its spiral structure.
• vs. StarSense Explorer 8": With 2.25x the light-gathering power of the 8" model, the 12" offers a dramatically different viewing experience. Globular clusters like the Hercules Cluster (M13) are resolved into dense seas of individual stars, and faint nebulae that are invisible in smaller scopes become accessible.