By the UK Telescope Mounts – Expert Reviews & Buyer's Guides Team · Updated May 2026 · Independent, reader-supported

Celestron Advanced VX Mount Review UK: Is It Still Worth Buying in 2025?

The Celestron Advanced VX has been around since 2012, and if you're researching it now, you're probably wondering whether a thirteen-year-old design still deserves your money. The honest answer is: sometimes, but with caveats. After several years of ownership and testing various payloads, here's what you actually get.

What You're Buying

The AVX is a computerised alt-azimuth mount—it moves up-and-down and left-right, rather than rotating around the celestial pole. Celestron pairs it with a hand controller and a database of 40,000+ objects. It'll slew to planets, nebulae, and clusters automatically, track them as Earth rotates, and hold reasonably heavy scopes without collapsing into a wobbling mess.

Physically, it's compact and lightweight by professional standards: roughly 13 kg without the telescope. It folds down to fit a car boot. That matters if you're driving to a dark sky site every observing night.

GoTo Accuracy: Realistic Expectations

Here's where the AVX's age shows most clearly. Out of the box, expect slew accuracy of around 20 to 30 arcminutes—roughly the width of the full moon. That's fine for finding bright objects and galaxies, but it won't drop the object dead-centre in your eyepiece at higher magnifications.

The StarSense module (sold separately, around £150–200 in the UK) substantially improves this. It works by plate-solving: taking an image of the sky, identifying stars in it, and correcting the mount's pointing. With StarSense active, accuracy drops to 1 to 3 arcminutes—a genuine improvement. On a typical night with decent seeing, a 20mm eyepiece (50× magnification on a 1000mm scope) will centre most deep-sky objects without manual adjustment.

That said, StarSense is fiddly. It requires clear skies, a planetary camera or webcam, and you need to level the mount reasonably well. If your observing site is mediocre light-wise, or you're impatient, the hand controller's two-star alignment method works nearly as well in practice.

Payload and Stability

Celestron rates the AVX for 11 kg payload. In reality, it handles 10 kg scopes perfectly well, performs acceptably up to 12 kg, and becomes increasingly wobbly beyond that.

On a 10 kg telescope, the mount sits solidly on its tripod. Wind pushes it around, but settling time is reasonable—typically 3 to 5 seconds after a slew. On a 12 kg scope, that stretches to 8 to 10 seconds, and vibrations linger longer. This matters for photography: if you're trying to guide a long exposure, a sluggish, oscillating mount defeats the purpose.

For visual observing, it's less critical. Most hobby observers pair the AVX with 5–8 kg scopes, which is where it performs best. A Celestron 8-inch SC (3.6 kg) or an 80mm refractor sits in the sweet spot; you get high-end optics on a responsive mount.

Astrophotography Performance: It Works, Sort Of

The AVX does drive telescope mounts—it rotates to match the sky's motion—but it's not a purpose-built astrophotography platform. Tracking accuracy is ±15 arcseconds per 10-second exposure at best. That's acceptable for wide-field imaging with a short focal-length scope, but it's not the precision you'd demand for deep-sky planetary imaging or narrow-field work.

The mount's hand controller can be computerised with an additional USB interface, which opens up options for guided exposures using a separate autoguider. Many observers do this, and results are respectable. But you're adding cost (£100–150 for the computer interface), complexity, and weight to a mount that was never designed with photography as its primary role.

Drift and periodic error—the wobbles that accumulate over long exposures—are more pronounced on the AVX than on German equatorial mounts like the HEQ5 Pro. It's a structural limitation of the alt-azimuth design; there's no way around it.

The HEQ5 Pro Comparison

The HEQ5 Pro is the obvious competitor at similar UK street prices (both around £600–750). Here's the trade-off:

The HEQ5 is an equatorial mount: it points at the pole star and rotates on a single axis. That design offers superior tracking stability, lower periodic error, and better long-exposure performance. It's also heavier (18 kg) and requires a polar-finder adjustment before every session. For astrophotography, it's the stronger choice.

The AVX, meanwhile, is quicker to set up, lighter to transport, and perfectly adequate for visual observing and casual wide-field imaging. If you're driving to dark sky sites and changing locations regularly, the AVX's compactness is a genuine advantage. If you're photographing from a permanent back-garden setup, the HEQ5 deserves serious consideration.

Reliability and Support

The AVX is well-established. Spare parts are available, repairs are straightforward, and the user community is large enough that you'll find solutions to most problems online. Hand controllers do fail occasionally after years of use (batteries corroding, buttons sticking), but replacements are cheap—around £50–80.

Celestron's UK support is adequate but not fast. Plan for a week or two if you need to contact them. That said, most issues don't require warranty work; a firmware update or recalibration fixes the majority of problems.

Verdict

Is the AVX worth buying in 2025? Yes—if you're visual-observing focused, want portability, and appreciate GoTo convenience without huge expense. No—if you're serious about astrophotography and expect tight tracking or if you live somewhere you can afford mounting a German equatorial permanently.

For most UK hobbyists observing from variable sites, it remains a solid choice. It's not cutting-edge, but it's proven, reasonably stable, and compact enough to actually use regularly. That counts for more than spec-sheet superiority.