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Explore the universe like never before with the Celestron NexStar 90SLT MAK Computerized Cassegrain Telescope – a perfect entry-level to mid-level telescope for beginner and intermediate stargazers. This 90mm Maksutov-Cassegrain telescope delivers impressive optical clarity and power, allowing you to observe the Moon’s craters, Venus and its phases, the polar ice caps on Mars, Jupiter and its four largest moons, Saturn’s iconic rings, and much more.
Designed for fast and easy setup, the NexStar 90SLT features a preassembled adjustable stainless steel tripod, quick-release fork arms, and optical tubes for tool-free assembly. You'll be ready to observe the night sky in just minutes.
At the heart of this telescope is Celestron’s SkyAlign technology. Simply enter the date, time, and location into the fully computerized hand control, then point the telescope at any three bright celestial objects. The telescope automatically aligns itself and is ready to locate over 4,000 celestial bodies with pinpoint accuracy.
Included accessories such as the StarPointer red dot finderscope, two eyepieces (25mm and 9mm), and a star diagonal enhance your viewing experience. The eyepieces offer both high and low magnification options, while the diagonal provides a right-side-up image for more comfortable viewing.
Whether you’re peering into deep space or using it as a spotting scope for terrestrial viewing, the NexStar 90SLT grows with your curiosity. It’s compatible with Celestron’s StarSense AutoAlign, SkyPortal WiFi module, and PowerTank Lithium, offering an upgraded experience for more advanced users.
Perfect for portable use, this telescope runs on batteries or an optional power supply, making it an ideal choice for backyard astronomy or on-the-go skywatching adventures.
Compact Maksutov-Cassegrain optical design for sharp, high-contrast images
Fully computerized Altazimuth mount with GoTo capability
StarPointer red dot finderscope for quick object targeting
Quick-release fork arm and optical tube for fast setup
Tool-free assembly – ideal for beginners
NexStar hand control for effortless sky navigation
Powered by AA batteries or optional external power supply
Lightweight and highly portable for travel or backyard use
Comes with two eyepieces (25mm and 9mm) for different magnification needs
Feature | Specification |
---|---|
Optical Design | Maksutov-Cassegrain |
Aperture | 90mm (3.54") |
Focal Length | 1250mm (49") |
Focal Ratio | f/14 |
Eyepiece 1 | 25mm (0.98") - 50x Magnification |
Eyepiece 2 | 9mm (0.35") - 139x Magnification |
Finderscope | StarPointer red dot |
Star Diagonal | 1.25" |
Highest Useful Magnification | 213x |
Lowest Useful Magnification | 13x |
Limiting Stellar Magnitude | 12.3 |
Resolution (Rayleigh) | 1.55 arc seconds |
Resolution (Dawes) | 1.29 arc seconds |
Light Gathering Power | 165x (Compared to the human eye) |
Apparent Field of View | 1° |
Linear Field of View (@1000 yds) | 53 ft (16 m) |
Optical Coatings | Fully Coated |
The Celestron NexStar 90SLT stands out as one of the best GoTo telescopes for beginners, combining high-quality optics with cutting-edge computerized tracking. Whether you're just starting your journey into astronomy or looking to upgrade from a manual telescope, the NexStar 90SLT offers unmatched convenience, clarity, and expandability in a compact and affordable package.
Shop now and bring the wonders of the night sky closer than ever!
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