Celestron · Schmidt-Cassegrain
Celestron NexStar Evolution 9.25
Serious aperture, smart technology, ready to use the night you unbox it
Price updated Mar 22, 2026
Performance Scores
Overview
The NexStar Evolution 9.25 is a 235mm Schmidt-Cassegrain that gives you enough light-gathering power to resolve globular clusters, track down faint galaxies, and pull serious detail from planetary surfaces. The 2350mm focal length at f/10 makes it particularly strong on the Moon, planets, and tighter deep-sky targets, though wide-field views of large nebulae will require patience with eyepiece choices. The built-in GoTo mount handles alignment and automatically slews to thousands of objects, which is genuinely useful for observers who want to spend time looking rather than star-hopping.
Tracking keeps objects centered as Earth rotates, a real advantage when you are sketching, sharing views with others, or pushing magnification on planetary detail. Celestron's StarBright XLT coatings improve light transmission across the optical path, which matters with a design that passes light through multiple optical surfaces. At roughly 22kg total, this is not a grab-and-go setup, but it is manageable for a dedicated observing spot or car transport.
The alt-az mount is simpler than an equatorial for visual use, though astrophotographers should note it is not optimized for long-exposure imaging without additional hardware.
At a Glance
235mm
Aperture
f/10
Focal Ratio
21.77kg
Weight
2350mm
Focal Length
Specifications
Key Features
- 235mm aperture gathers enough light to show detail in globular clusters and resolve structure in brighter galaxies
- Integrated GoTo system with motorized tracking lets you locate and follow objects automatically from the first night
- Built-in WiFi connects to Celestron's SkyPortal app, so you can control the telescope from your phone without a hand controller
- StarBright XLT multi-coatings applied to both lenses and mirrors improve overall light transmission compared to standard coatings
- Schmidt-Cassegrain design folds a long focal length into a compact tube, making storage and transport more practical than a Newtonian of equivalent aperture
- Alt-az GoTo mount is well-suited to visual observing but limits deep-sky astrophotography to short exposures without a wedge accessory
- Internal battery eliminates the need for external power sources during field sessions, reducing setup complexity