Celestron StarSense Explorer DX 102AZ Refractor Telescope

Celestron StarSense Explorer DX 102AZ Smartphone App-Enabled Refractor Telescope

Discover the night sky with confidence—no experience necessary.

The Celestron StarSense Explorer DX 102AZ blends premium refractor optics with smartphone-powered guidance, making it the perfect telescope for beginners and hobbyists alike. With StarSense™ technology, this 4-inch refractor offers guided, app-based sky navigation, unlocking planets, nebulae, galaxies, and more from the city or countryside.

🌟 Key Features

• StarSense Sky Recognition – Your smartphone becomes a celestial tour guide, analysing the night sky in real-time to guide you to visible objects with precision.

• Smartphone App Integration – The StarSense Explorer app (powered by SkySafari™) displays a list of objects currently viewable based on your location and time.

• High-Quality 102mm Refractor – Delivers sharp, detailed views of the Moon, Jupiter’s moons, Saturn’s rings, and deep-sky objects like the Andromeda Galaxy.

• XLT Optical Coatings – Fully multi-coated optics enhance light transmission and contrast for brighter, more detailed views.

• Manual Alt-Azimuth Mount with Slow Motion Control – Dual-axis knobs provide smooth, accurate tracking of celestial objects.

• Portable, Sturdy Design – Lightweight at just 14.2 lbs with a full-height tripod and accessory tray for stable observing on the go.

📱 Dock, Launch, and Explore

1. Dock your phone into the integrated StarSense cradle.

2. Launch the app and align your phone with the telescope’s optics (takes only 2 minutes).

3. Explore by following the arrows on-screen until the bullseye turns green—then look through the eyepiece and enjoy.

Unlike other astronomy apps that rely solely on gyroscopes and accelerometers, StarSense uses a Lost in Space Algorithm (LISA)—the same technology used by satellites—for unmatched accuracy.

🛰️ Smartphone Compatibility

• Compatible with iPhone 6 and up

• Android phones from 2016 onwards running version 7.1.2 or later
  (See Celestron’s compatibility list for details.)

🔭 Dazzling Views by Day or Night

Whether you're gazing at lunar craters or scanning landscapes, the DX 102AZ performs beautifully. The 90° erect image diagonal delivers right-side-up views—ideal for both terrestrial and celestial observation. Expect sharp, high-contrast images with excellent colour fidelity.

Celestial objects easily within reach include:

• The Moon in stunning detail

• Jupiter’s moons and Great Red Spot

• Saturn’s rings and Cassini Division

• Star clusters like the Pleiades and Hercules

• Bright nebulae such as Orion

• Andromeda Galaxy and more from darker skies

⚙️ Technical Specifications

Optical System

• Design: Refractor

• Aperture: 102mm (4.01")

• Focal Length: 660mm

• Focal Ratio: f/6.5

• Coatings: Fully Coated with XLT High Transmission Coatings

• Diagonal: 90° erect image (1.25")

• Eyepieces:

  • 25mm (26x)

  • 10mm (66x)

• Light Gathering Power: 212x (vs human eye)

• Resolution:

  • Rayleigh: 1.37 arc seconds

  • Dawes: 1.14 arc seconds

• Limiting Magnitude: 12.5

• Tube Material: Aluminium

• Tube Weight: 5 lbs (2.26 kg)

• Tube Length: 812.8mm (32")

• Dovetail: CG-5

Mount & Tripod

• Mount Type: Manual Alt-Azimuth with dual-axis slow-motion controls

• Tripod Max Height: 1244.6mm (49")

• Tripod Weight: 9.2 lbs (4.17 kg)

• Accessory Tray: Included

• Total Kit Weight: 14.2 lbs (6.44 kg)

💻 Included Software

• StarSense Explorer App

• Celestron SkyPortal App

• Celestron Starry Night Basic Edition Software

📦 What’s in the Box

• 102mm refractor optical tube

• StarSense smartphone dock

• 25mm and 10mm eyepieces

• Erect image diagonal

• Red dot finderscope

• Manual alt-azimuth mount with slow motion controls

• Full-height tripod with accessory tray

☀️ Safety Warning

Never view the Sun directly without a certified solar filter. Serious and permanent eye damage can occur. Always supervise telescope use, especially with children.

🎯 Who Is It For?

The StarSense Explorer DX 102AZ is ideal for:

• Beginners seeking guided celestial exploration

• Casual observers wanting an easy-to-use telescope

• Nature enthusiasts looking for a dual-purpose scope

• Travellers and campers after a portable astronomy solution

Explore the Universe your way—quickly, accurately, and without guesswork.