Celestron AstroMaster 90AZ Refractor Telescope

050234210638

Celestron

4 in stock
£269.99
£269.99
Tax included. Shipping calculated at checkout.

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Celestron AstroMaster 90AZ Refractor Telescope

User-Friendly Stargazing with Crisp, Clear Views

The Celestron AstroMaster 90AZ offers an excellent introduction to astronomy with its classic refractor design, fully coated glass optics, and intuitive Alt-Azimuth mount. Whether you’re observing the Moon, Saturn’s rings, or scenic landscapes during the day, this dual-purpose telescope is built for clear, hassle-free viewing.

Key Features

  • 🔭 90mm Refractor Telescope – Bright, detailed views of celestial and terrestrial targets.

  • 🎯 Pan Handle Alt-Azimuth Mount – Smooth up/down and left/right movement with clutch control for easy navigation of the sky.

  • 🔧 Quick No-Tool Setup – Assemble in minutes and start observing straight away.

  • 🪐 Two Eyepieces Included – 20mm (50x) and 10mm (100x) for wide-angle and detailed viewing.

  • 🌍 Erect Image Diagonal (90°) – Produces correctly oriented images—perfect for land-based viewing.

  • ✨ StarPointer™ Red Dot Finderscope – Easily locate and centre targets.

  • 🧰 Sturdy Adjustable Tripod – Steel legs with integrated accessory tray provide a stable base.

Perfect for Day or Night

The AstroMaster 90AZ is designed for versatile use. View mountains, wildlife, or coastal scenes during the day, then point it skyward at night to observe the Moon, Jupiter’s moons, or star clusters. Its long focal length and high-contrast optics deliver excellent image sharpness across a range of viewing conditions.

Starry Night Software Included

Plan your next observing session and explore the universe with Celestron's Starry Night Basic Edition, featuring:

  • A 36,000-object celestial database

  • Printable star maps

  • 3D models of celestial bodies

  • Interactive learning tools

Also works with the SkyPortal app for mobile stargazing guidance.

Specifications

Optical System

  • Optical Design: Refractor

  • Aperture: 90mm (3.54")

  • Focal Length: 1000mm (f/11)

  • Eyepieces:

    • 20mm (50x)

    • 10mm (100x)

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

  • Finderscope: StarPointer™ Red Dot

  • Max Useful Magnification: 213x

  • Limiting Magnitude: 12.3

  • Resolution:

    • Rayleigh: 1.55 arc seconds

    • Dawes: 1.29 arc seconds

  • Light Gathering Power: 165x

  • Coatings: Fully Coated Glass Optics

Mount & Tripod

  • Mount Type: Manual Alt-Azimuth with Clutch Pan Handle

  • 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: 770mm (30.3")

  • Total Kit Weight: 12.3 lbs (5.58 kg)

Included in the Box

  • Optical Tube

  • Preassembled Tripod & Mount

  • 20mm and 10mm Eyepieces

  • Erect Image Diagonal (90°)

  • StarPointer™ Red Dot Finderscope

  • Manual

  • Starry Night Software Download

Important Safety Notice

Never observe the Sun without a proper solar filter. Permanent eye damage or blindness may result. Always supervise telescope use with children.

Who Is This For?

The Celestron AstroMaster 90AZ is ideal for beginners, families, and hobbyists looking for a simple yet powerful telescope for both celestial and daytime viewing. Its intuitive control, sharp optics, and versatile design make it a dependable companion for every observing session.

Shipping Options

Fast & Reliable UK Delivery

We offer flexible delivery options across the UK, with free shipping available on qualifying orders.

  • FREE Next Working Day Delivery (Mon–Fri)
    On all orders £300 and over
  • FREE Express Delivery (1–3 Working Days)
    On orders £49.99 – £299.99
  • Express Delivery – £3.99
    On orders under £49.99
  • Standard Delivery (2–4 Working Days) – £2.99
    A great value option for smaller orders
  • Priority Shipping – £8.99
    A fully tracked, guaranteed delivery service, including Saturday delivery options

Order Fulfilment

Some items, as clearly stated on the product page, may be fulfilled directly by our partners or manufacturers. In these cases, your order will be shipped to you straight from the brand’s warehouse. This helps us provide a wider range of specialist equipment and may result in slightly different delivery times.

Returns Policy

If something isn’t right, we’ll always try to help.

  • Unused items in “as new” condition can usually be returned within the statutory cooling-off period
  • Please contact us before sending anything back so we can advise on the safest way
  • For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
  • If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs

Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.

Your statutory rights are not affected.
Celestron AstroMaster 90AZ Refractor Telescope

£269.99

Does it come with a warranty?

All our products are UK stock so come with manufacturers warranty

What happens if I don't like it?

We always want you to be happy with your purchase — so if you’re unsure, please ask us first. We’re always happy to give honest advice before you buy.

If the product arrives and you simply decide it isn’t for you, you can usually return it within the cooling-off period — as long as it’s unused, in perfect condition, and returned with all original packaging and accessories.

Because telescopes and optical equipment are large, delicate and expensive to ship, you’ll need to cover the cost of sending it back, and if we originally subsidised delivery, we may deduct our outbound shipping costs from your refund.

We’re a small specialist business, and unnecessary returns genuinely hurt us — so if you’re unsure at all, please talk to us first. We’d rather help you choose the right item than process a return.

How fast is shipping?

We aim to ship in-stock items as quickly as possible.

  • Most in-stock orders dispatch within 1–2 working days
  • Delivery usually takes 1–3 working days after dispatch (UK mainland)
  • Heavier / oversized items and special orders may take a little longer

You’ll receive tracking details as soon as your order is on its way.

Astronomy equipment often requires specialist packing and trusted couriers — we do this to keep your gear safe, not to slow things down. If you need something urgently, just ask and we’ll do our best.

What's the returns policy?

If something isn’t right, we’ll always try to help.

  • Unused items in “as new” condition can usually be returned within the statutory cooling-off period
  • Please contact us before sending anything back so we can advise on the safest way
  • For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
  • If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs

Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.

Your statutory rights are not affected.

What are your opening hours?

Monday: 9.00am - 5.00pm
Tuesday: 9.00am - 5.00pm
Wednesday: 9.00am - 5.00pm
Thursday: 9.00am - 5.00pm
Friday: 9.00am - 5.00pm
Saturday: 9.00am - 5.00pm
Sunday: Closed