Celestron StarSense Explorer DX 5" SCT Telescope

Celestron StarSense Explorer DX 5" Smartphone App-Enabled Schmidt-Cassegrain Telescope

Advanced Stargazing—Made Simple

The StarSense Explorer DX 5” is a powerful and portable telescope that combines Celestron’s premium Schmidt-Cassegrain optics with the revolutionary StarSense Explorer app. Just dock your smartphone, launch the app, and enjoy a guided tour of the cosmos with step-by-step navigation to planets, nebulae, galaxies, and more—no prior experience required.

Key Features

• 📱 Smartphone-Guided Astronomy – Uses patented StarSense technology and your smartphone to accurately determine telescope position and guide you to celestial objects in real time.

• 🌌 125mm (5”) Schmidt-Cassegrain Optics – High light-gathering power with StarBright XLT coatings for brighter, sharper images of the Moon, planets, star clusters, and deep-sky objects.

• 🧭 Manual Alt-Azimuth Mount – Smooth slow-motion controls on both axes for precise object tracking and alignment.

• 🧠 Patented StarSense Sky Recognition Technology – Uses the same advanced Lost-in-Space Algorithm (LISA) as orbiting satellites for unmatched pointing accuracy.

• 🪐 Two Eyepieces Included – 25mm (50x) and 10mm (125x) for wide and high-powered views.

• 🌍 Erect Image Diagonal – Ideal for both astronomical and daytime terrestrial observation.

• 🔭 StarPointer™ Red Dot Finderscope – Quickly centre objects manually or use without a smartphone.

• 🧰 Sturdy, Full-Height Tripod – With accessory tray and adjustable aluminium legs for stable, convenient setup.

How It Works – Dock. Launch. Explore.

1. Dock your smartphone into the StarSense bracket.

2. Launch the app and align your phone to the telescope’s optics.

3. Select a visible target from the app’s real-time list.

4. Follow the on-screen arrows to guide the telescope.

5. When the bullseye turns green, you’re locked on—start observing!

The StarSense Explorer app, powered by SkySafari™, guides you to your chosen object with far greater accuracy than gyroscope-based apps. No star charts. No guesswork. Just intuitive sky navigation.

Smartphone Compatibility

• iPhone 6 and newer

• Android devices (2016+) running 7.1.2 or later

For the latest compatibility information, visit Celestron’s website.

High-Performance Schmidt-Cassegrain Optics

This 5” Schmidt-Cassegrain telescope delivers exceptional image quality with a compact, portable design. You can expect to see:

• Jupiter’s moons, cloud bands, and Great Red Spot

• Saturn’s rings and Cassini Division

• The Orion Nebula’s glowing gas and trapezium stars

• Andromeda Galaxy, Hercules Cluster, and more under darker skies

All air-to-glass surfaces are treated with StarBright XLT coatings for improved brightness and contrast—ideal for both planetary and deep-sky observations.

Specifications

Optical System

• Optical Design: Schmidt-Cassegrain

• Aperture: 125mm (5")

• Focal Length: 1250mm (f/10)

• Eyepieces:

  • 25mm (50x)

  • 10mm (125x)

• Diagonal: 90° Erect Image (1.25")

• Finderscope: StarPointer™ Red Dot

• Max Useful Magnification: 295x

• Limiting Magnitude: 13.0

• Resolution:

  • Rayleigh: 1.11 arc seconds

  • Dawes: 0.93 arc seconds

• Light Gathering Power: 329x

• Coatings: StarBright XLT

• Secondary Mirror Obstruction:

  • Diameter: 51mm (16.6%)

  • Area: 40%

• Optical Tube Material: Aluminium

• Tube Length: 330mm (13")

• Tube Diameter: 171.45mm (6.75")

• Tube Weight: 5 lbs (2.26 kg)

• Dovetail: CG-5

Mount & Tripod

• Mount Type: Manual Alt-Azimuth with slow motion controls (both axes)

• Max Height: 1320.8mm (52")

• Tripod Leg Diameter: 31.75mm (1.25") steel

• Accessory Tray: Included

• Tripod Weight: 9.6 lbs (4.35 kg)

Software

• StarSense Explorer App

• Celestron SkyPortal App

• Starry Night Basic Edition Software

Total Kit Weight

• 14.6 lbs (6.62 kg)

Included in the Box

• Schmidt-Cassegrain Optical Tube (125mm)

• Alt-Az Mount with Slow Motion Controls

• Preassembled Tripod with Accessory Tray

• 25mm and 10mm Eyepieces

• 90° Erect Image Diagonal (1.25")

• StarPointer™ Red Dot Finderscope

• StarSense Smartphone Dock

• Software Downloads

Important Safety Notice

Never observe the Sun without a certified solar filter. Permanent eye damage or blindness can occur. Always supervise telescope use around children.

Who Is This For?

The StarSense Explorer DX 5” is the ultimate beginner-to-intermediate telescope for users seeking premium optics, easy setup, and cutting-edge smartphone guidance. Whether you’re exploring from a city balcony or a dark-sky campsite, this portable Schmidt-Cassegrain telescope delivers stunning views and an intuitive, modern stargazing experience.