Celestron Nexstar Evolution 9.25

Reference 12092

£2,429.00 VAT inc

Celestron’s signature telescopes reach a new level with NexStar Evolution 9.25, the first Schmidt-Cassegrain telescope with integrated WiFi. Leave your hand control behind and slew to all the best celestial objects with a tap of your smartphone or tablet. Connect your device to NexStar Evolution’s built-in wireless network, and explore the universe with the Celestron mobile app for iOS and Android

Delivery In 1-5 Days

Our Description

Control your telescope wirelessly from your iOS or Android smartphone or tablet with the free Celestron mobile app with planetarium interface and SkyAlign technology

Portable 9.25-inch Schmidt-Cassegrain optical tube with StarBright XLT optical coatings and Fastar compatibility

Computerized GoTo mount with high-performance worm gears and motors for improved tracking accuracy, along with reduced gear backlash

Rechargeable lithium-ion battery with enough power for 10 hours of continuous observing

Improved industrial design with manual clutches and integrated carry handles, plus the added convenience of two accessory trays and a USB charge port for your smart device


Use the planetarium interface to view the night sky in real time or display a list of celestial objects currently visible based on your time and location. Our proprietary SkyAlign alignment procedure is built right into the Celestron mobile app, so you’re ready to observe within minutes.

Celestron engineers designed NexStar Evolution based on years of customer feedback. It offers many thoughtful design features that combine to provide you the best possible experience out under the stars.

Forget about batteries or an external power supply. For the first time ever on a consumer telescope, NexStar Evolution includes its own built-in lithium-ion battery. You’ll be able to enjoy stargazing marathons up to 10 hours on a single charge. You can even use NexStar Evolution’s USB charge port to top off the other devices in your life that need to stay powered on during an observing session.

Setting up your NexStar Evolution is quick and painless with large, ergonomic handles. The steel tripod features leg etchings to help you achieve a level, uniform height for your telescope. Manual clutches in both altitude and azimuth offer greater flexibility to manually point the telescope when powered off. Store up to 7 eyepieces in 2 accessory trays, one with an adjustable red LED illuminator.

If you’re interested in astroimaging, the 9.25-inch NexStar Evolution is an excellent, affordable way to get started. It’s the only fork-mounted telescope in its price range that offers worm gears, along with improved motors. NexStar Evolution’s tracking accuracy is so impressive, you can capture images of deep-sky objects like the Orion Nebula by simply attaching your DSLR camera. As you progress in the hobby of astroimaging, you can add our Pro HD Wedge to achieve longer exposures for more detailed astrophotos.

Of course, the Schmidt-Cassegrain optical system offers bright, sharp views with StarBright XLT optical coatings—a great choice for visual observers and budding astro-imagers alike.

NexStar Evolution includes a StarPointer finderscope, two 1.25” Plossl eyepieces, a 1.25” star diagonal, AC adapter, and optional hand control.

Focal Length of Eyepiece 1

40 mm

Focal Length of Eyepiece 2

13 mm

Magnification of Eyepiece 1


Magnification of Eyepiece 2


Star Diagonal



Stainless Steel

Highest Useful Magnification


Lowest Useful Magnification


Limiting Stellar Magnitude


Resolution (Rayleigh)

0.59 arc seconds

Resolution (Dawes)

0.49 arc secons

Light Gathering Power (Compared to human eye)


Secondary Mirror Obstruction

3.35 in (85 mm)

Secondary Mirror Obstruction by Diameter


Secondary Mirror Obstruction by Area


Total Telescope Kit Weight

46.6 lbs

Max Slew Speed

4 degrees per second

Tracking Rates

Sidereal, Solar and Lunar

Alignment Procedures

SkyAlign, 3-Star Align, Solar System Align

Communication Ports

1 hand control and 3 aux ports for optional accessories

App Database

Over 120,000 including 220 of the best deep sky and solar system objects

USB Charge Port



With any Cassegrain telescope you will have to consider the effect of dew fall. The cheapest solution is a lens hood but when dew is a real problem then heater straps will effectively evaporate dew and frost.

Also you can equatorially align this mount so it is better suited for imaging. This gives you the best of both worlds: A very large Alt-Az Mount that can (with the wedge fitted) easily be polar aligned for deep space imaging too. You should consider a reducer/corrector too.

Optically, this telescope is also excellent for daytime viewing too.

Baader AstroSolar Filters for Celestron.pdf

PDF Specification sheet for filters and dew straps

Boxes Dimensions & Weights (Approx):

1. 119x41x79cm 30kg

2. 91x48x41cm 15kg


Reference: 12092


Customers' review

5 stars 0 0 %
4 stars 0 0 %
3 stars 0 0 %
2 stars 0 0 %
1 star 0 0 %


There are no reviews yet.

Only logged in customers who have purchased this product may write a review.

Your Cart