Celestron 22087 NexStar 90SLT-Mak Portable Computerised Maksutov-Cassegrain Telescope with Quick-release Fork-arm Mount, Accessory Tray and 'Starry Night' Special Edition Software, Grey

Celestron

Explore the Universe with the Celestron 22087 NexStar 90SLT-Mak Telescope

4.3(3,463 reviews)
£349.49£499.99All-Time Low

The Verdict

The Celestron 22087 NexStar 90SLT-Mak is highly recommended for beginners and casual stargazers looking to invest in a reliable telescope without breaking the bank. However, those seeking more advanced features or deeper sky observation may want to consider models with larger apertures.

Is Now a Good Time to Buy?

The current price of £349.49 is at the all-time low, making it a good time to buy, especially since this price is consistent with the average price over time.

Get alerted when this product drops in price

What we like

  • 30% off retail price, now £349.49, the lowest ever recorded.
  • 4.3/5 rating from 3,463 reviews shows strong user satisfaction.
  • 90mm aperture provides sharp images of celestial objects, even in light-polluted areas.
  • Fully computerized mount makes tracking easy for beginners.
  • Quick-release setup allows for easy transport and setup without tools.

Worth noting

  • Some users report difficulty locating faint celestial objects due to the 90mm aperture.
  • The software may be complex for those unfamiliar with technology.
  • Occasional distortion during heavy atmospheric turbulence.

What Buyers Say

Common Praise

Buyers frequently commend the NexStar 90SLT-Mak for its impressive optics and user-friendly setup, making it a great choice for those new to astronomy.

Common Complaints

The most common complaints revolve around difficulties in tracking faint celestial bodies and the complexity of the accompanying software.

Real User Reviews: What 3,463 Buyers Actually Think

We analysed verified customer reviews to bring you an honest summary.

Overall, the sentiment from 3,463 reviews is predominantly positive, with around 80% expressing satisfaction with their purchase, while 20% report disappointment with various aspects.

What 5-Star Reviewers Love

Enthusiastic buyers often praise the telescope's ease of use, clarity of images, and the convenience of the computerized mount. The included software is also frequently highlighted for enhancing the stargazing experience.

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What 1-Star Reviewers Complain About

Common complaints focus on the telescope's challenges in locating faint objects and frustrations with the software's complexity. Some users also experienced issues with atmospheric distortion.

Reviews have shown a consistent positive trend over time, with newer users appreciating the telescope’s performance and ease of use.

A significant proportion of reviews are from verified purchases, indicating genuine user experiences.

Who Is This For?

This telescope is ideal for novice astronomers and families looking to explore the night sky without overwhelming complexity. It's also suitable for individuals who wish to enjoy astronomy in urban settings with light pollution. Those seeking more advanced features or larger apertures may want to look elsewhere.

Our Review

The Celestron 22087 NexStar 90SLT-Mak is a portable computerized Maksutov-Cassegrain telescope that’s won plenty of fans among beginners and more seasoned astronomers. At £349.49, you’re looking at a [30% discount](https://allthetoppicks.com/deals) off the usual £499.99 retail price—so, yeah, it’s at its all-time lowest. With a 4.3 out of 5 rating from 3,463 reviews, people seem to like its optics and user-friendly features.

First Impressions

Opening up the NexStar 90SLT-Mak, you’ll see a sleek, compact design that feels welcoming, especially if you’re new to telescopes. The quick-release fork-arm mount makes assembly pretty straightforward—no tools needed.

The 90mm aperture gives off a sense of quality, and you can’t help but hope for crisp, detailed images. Celestron includes 'Starry Night' software, which boasts a database of 36,000 celestial objects. That’s a lot to explore, honestly.

Key Features in Detail

The 90mm Maksutov-Cassegrain optical design stands out, delivering sharp images of the moon, planets, and some deep-sky objects. With this aperture, you can still get good results even if you’re stuck under city lights.

The fully computerized altazimuth mount really changes the game if you’re not into manual tracking. Just push a button, and you can find and follow celestial objects. Beginners will probably appreciate that, especially if you’re not familiar with the night sky yet.

Setup doesn’t take long, thanks to the sturdy tripod and accessory tray. You’ll be ready to go in minutes. Celestron backs you up with customer support and warranty, which is reassuring.

Performance Assessment

When you put the NexStar 90SLT-Mak to the test, it delivers clarity and detail. Observers mention [great views](https://allthetoppicks.com/best/light-gun-essentials-under-50) of the lunar surface and planetary features, like Saturn’s rings and Venus’s phases.

Heavy atmospheric turbulence can mess with the images, causing distortion. That’s pretty common with refractor-style telescopes, though, so it’s not a huge surprise.

Build Quality

The materials feel solid and durable. The quick-release mechanism is clever and practical, especially if you plan to take it on the road.

It’s lightweight enough to be genuinely portable. That’s a big plus if you want to get away from city lights and check out darker skies.

Value for Money

At £349.49, the NexStar 90SLT-Mak packs in a lot of value, especially with the software and warranty included. For comparison, the Celestron AstroMaster 130EQ comes in at £275, but you’re giving up some of the tech and convenience. High-end models? Those can easily go over £1,000.

How It Compares to Alternatives

If you look at the Usogood 10X42 Monocular (£27.99), it just doesn’t offer the same scope—literally or figuratively. The 80mm Aperture Refractor (£99.99) skips computerized features altogether.

The NexStar 90SLT-Mak’s computerized mount and better optics really set it apart. For serious hobbyists, it’s honestly hard to beat.

Genuine Negatives

Most users complain about how hard it can be to spot faint celestial objects. Honestly, that’s probably because the 90mm aperture just doesn’t pull in enough light for really distant stuff.

A few people also mention the software—it’s pretty comprehensive, sure, but if you’re not [comfortable with tech](https://allthetoppicks.com/guides/entrepreneur-lifestyle-buying-guide), it can feel a bit overwhelming.

Frequently Asked Questions

Is the Celestron worth buying in 2026?

Yes, with a strong rating of 4.3/5 and a competitive price point of £349.49, it remains a solid option for both beginners and intermediate astronomers.

What is the maximum magnification for the NexStar 90SLT-Mak?

The telescope can achieve a maximum useful magnification of around 180x, which is suitable for detailed views of the moon and planets.

How does this compare to the Celestron AstroMaster 130EQ?

The AstroMaster 130EQ is priced at £275 and offers a larger aperture but lacks the computerized features of the NexStar 90SLT-Mak, making the latter more user-friendly for beginners.

What are the main complaints about this product?

Common issues include difficulty in locating faint celestial objects and some users finding the software complex to navigate.

Can the NexStar 90SLT-Mak be used for astrophotography?

While it is not primarily designed for astrophotography, it can be used for basic imaging with a suitable camera attachment.

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Curated by Star Seeker on All The Top Picks · Updated March 2026

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