Celestron StarSense Explorer™ 130mm Smartphone App-Enabled Tabletop Dobsonian Telescope

StarSense Explorer Tech: Your Smartphone as a 130mm Targeting System

Celestron's patented StarSense Explorer technology eliminates the need for complicated star charts or imprecise planetarium apps. By placing your phone in the included dock and launching the app, the system analyzes the starfield overhead and calculates the telescope's precise position. Select an object from the list of currently visible targets, and simple on-screen arrows guide you to your destination, turning green when the object is centered in the eyepiece.

This system uses a Lost in Space Algorithm (LISA), the same technology satellites use for orientation, making it far more accurate than apps that rely solely on a phone's internal gyros. It transforms a manual Dobsonian mount into a powerful object-locating tool, bridging the gap between manual observing and a fully computerized GoTo system.

130mm f/5 Parabolic Mirror: 345x Light Gathering Power

At the heart of this telescope is a 130mm (5.12") parabolic primary mirror, a critical feature that ensures all incoming light is focused to a single point. This eliminates the spherical aberration common in entry-level reflectors, resulting in sharper, higher-contrast images. The fast f/5 focal ratio provides a wide field of view, perfect for observing large deep-sky objects like the Andromeda Galaxy (M31) and the Orion Nebula (M42).

• Deep Sky Views: With 345x the light-gathering power of the naked eye, this telescope reveals details in distant galaxies, resolves stars in the Hercules Cluster (M13), and frames the entirety of the Pleiades open cluster.
• Planetary Detail: The 650mm focal length is ideal for planetary viewing. The included 10mm eyepiece (65x) clearly shows Jupiter's four Galilean moons and cloud bands, along with the rings of Saturn.
• Optical Quality: The primary and secondary mirrors feature Aluminum with SiO2 overcoatings, maximizing reflectivity and protecting the mirror surface for years of consistent use.

19.2 lb Tabletop Dobsonian: Grab-and-Go Foundation

The entire telescope kit weighs just 19.2 lbs, making it exceptionally portable. The Dobsonian base itself is a stable 11 lb platform with smooth Teflon bearings for easy manual slewing across the sky. An integrated altitude brake allows you to adjust tension, ensuring smooth tracking of celestial objects as they drift, even with slight imbalances.

Designed for convenience, the base is compact enough for easy transport and can be set up on any stable surface, like a picnic table or the hood of a car. The optical tube attaches via a standard dovetail bar, allowing for easy positioning to achieve a comfortable viewing angle through the 1.25" rack-and-pinion focuser.

StarSense 130mm vs. Traditional Dobs: App-Guided vs. Star-Hopping

For a beginner, the primary challenge of a traditional Dobsonian is learning to "star-hop"—the process of using a finderscope and star charts to manually navigate from a bright, known star to a faint, unseen target. This method has a steep learning curve and can be frustrating in light-polluted skies.

The StarSense Explorer 130mm completely bypasses this challenge. Instead of spending your first few nights learning to navigate, the app guides you directly to your target within minutes. This allows you to spend more time observing and less time searching, dramatically accelerating your journey into amateur astronomy without the cost and complexity of a full GoTo mount.