Celestron AstroMaster 102AZ Refractor Telescope

Celestron AstroMaster 102AZ Refractor Telescope

Versatile Day & Night Viewing with a Powerful 102mm Refractor

The Celestron AstroMaster 102AZ is a dual-purpose telescope that’s equally at home exploring lunar landscapes or surveying distant terrestrial scenes. Its generous 102mm aperture, fast f/6.5 optics, and intuitive altazimuth mount make it a perfect choice for beginners, hobbyists, and nature lovers seeking a straightforward yet powerful optical instrument.

Key Features

• 🔭 102mm Refractor Telescope – Bright, high-contrast views of planets, the Moon, star clusters, and land-based subjects.

• 🎯 Manual Alt-Azimuth Mount – Simple pan handle control offers smooth and precise pointing for sky or land use.

• 🔧 No-Tool Setup – Quick and hassle-free assembly lets you start observing straight out of the box.

• 🪐 Two Eyepieces Included – 20mm (33x) and 10mm (66x) for wide and detailed views.

• 🌍 Erect Image Diagonal (90°) – Produces correctly oriented images, making it perfect for terrestrial viewing.

• 🎯 Built-in Red Dot Finderscope – Helps locate and centre objects easily.

• 🧰 Sturdy Steel Tripod – Adjustable full-height tripod with integrated accessory tray.

Designed for Day and Night Exploration

With fully coated all-glass optics and an erect image diagonal, the AstroMaster 102AZ is truly versatile. Observe craters on the Moon, the rings of Saturn, or Jupiter’s cloud bands by night—and during the day, enjoy crisp views of landscapes, lakes, birds, and other wildlife. This telescope is ideal for users who want one scope that can do it all.

Starry Night Software Included

Included with every AstroMaster 102AZ is Celestron’s Starry Night Basic Edition—a powerful software suite that features:

• A 36,000-object celestial database

• Interactive sky maps

• Realistic 3D visualisations of planets, stars, and galaxies

• Planning tools for your next observing session

Also compatible with the SkyPortal mobile app for interactive sky tours.

Specifications

Optical System

• Optical Design: Refractor

• Aperture: 102mm (4")

• Focal Length: 660mm (f/6.5)

• Eyepieces:

  • 20mm (33x)

  • 10mm (66x)

• Star Diagonal: 90° Erect Image (1.25")

• Finderscope: Built-in Red Dot

• Max Useful Magnification: 241x

• Limiting Magnitude: 12.5

• Resolution:

  • Rayleigh: 1.37 arc seconds

  • Dawes: 1.14 arc seconds

• Light Gathering Power: 212x

• Coatings: Fully Coated Glass Optics

Mount & Tripod

• Mount Type: Manual Alt-Azimuth

• Tripod Height Range: 812.8mm – 1295.4mm (32" – 51")

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

• Accessory Tray: Included

Dimensions & Weight

• Optical Tube Length: 380mm (15")

• Total Kit Weight: 12.9 lbs (5.85 kg)

Included in the Box

• Optical Tube

• Manual Alt-Azimuth Mount & Tripod (Preassembled)

• 20mm and 10mm Eyepieces

• Red Dot Finderscope

• Erect Image Diagonal (90°)

• Accessory Tray

• Manual

• Starry Night Software Download

Important Safety Notice

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

Who Is This For?

The Celestron AstroMaster 102AZ is ideal for anyone seeking a reliable and easy-to-use telescope for both astronomy and daytime observation. Its wide field of view, excellent optical performance, and versatile mount make it a superb all-in-one solution for families, beginners, and outdoor enthusiasts.