Celestron - NexStar 127SLT 5" Maksutov-Cassegrain Computerized Telescope

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Designed to be an affordable entry level to mid-level computerized GoTo telescope, the NexStar SLT refractors, reflectors, and Maks are available in the most popular sizes and are loaded with valuable design features

SKU: CEL-22097
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Product Description

CELESTRON •  NexStar 127SLT 5" Computerized Maksutov-Cassegrain • 22097

As a mid-sized catadioptric design, the Celestron NexStar 127SLT Maksutov-Cassegrain Computerized Telescope is designed for beginner astronomers willing to take their stargazing to the next level. As a very simple, GoTo telescope, the amount of time to assemble prior to stargazing is very quick and efficient. The kit comes equipped with stainless steel tripods and quick release fork arms and tubes, meaning no additional tools are required for setup. While smaller aperture telescopes are better for planetary observing in general, the NexStar 127SLT is probably the best in the NexStar SLT series for planet viewing because of its Maksutov-Cassegrain design which uses a meniscus lens, therefore creating a slow focal ratio of f/12.

Taking the time to learn the night sky can be quite challenging, so Celestron has designed the SkyAlign feature included with the NexStar 127SLT. Knowledge of the night sky is not required, all the user must know is time, date, and location and must point and center the telescope to three bright stars (or planets) during a given period and the telescope software calculates what these stars must of been against its database and therefore aligns itself. It is that simple! Once aligned, the NexStar Hand Controller has a 4,000 object database to slew to!

The NexStar control software is flash upgradeable, meaning it can be downloaded from the internet whenever an update becomes available.


  • High quality 127 mm Maksutov-Cassegrain
  • Fully computerized Altazimuth mount
  • StarPointer finderscope to help with alignment and accurately locating objects
  • Quick-release fork arm mount, optical tube and accessory tray for quick no tool set up
  • Sturdy stainless steel tripod and accessory tray included
  • Good for terrestrial and celestial observing
  • “TheSkyX – First Light Edition” astronomy software with a 10,000 object database, printable sky maps and 75 enhanced images



  • Proven NexStar computer control technology
  • Database allows telescope to locate over 4,000 celestial objects
  • SkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment process
  • Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
  • Internal battery compartment to prevent cord wrap during use
  • Auxiliary port for additional accessories such as GPS accessory
  • Includes NSOL telescope control software for basic control of your telescope via computer (with optional RS-232 cable)
  • Compatible with optional NexRemote telescope control software, for advanced control of your telescope via computer










Name Celestron - NexStar 127SLT 5" Maksutov-Cassegrain Computerized Telescope
Manufacturer Celestron
Model CEL-22097
UPC 050234220972
Telescope Aperture 4.1" - 5"
Accessory Tray No Tool, Quick release
Alignment Procedures SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align
Angular Field of View .83 °
Aperture 127 mm (5 in)
Computer Hand Control Fully Computerized / Flash Upgradeable
Database 4,000 Object Database
Eyepiece 1 25 mm (0.98 in)
Eyepiece 2 9 mm (0.35 in)
Finderscope StarPointer
Focal Length 1500 mm (59.06 in)
Focal Ratio 11.81
GPS Optional SkySync GPS Accessory (93969)
Mount Motorized Altazimuth
Resolution (Dawes) 0.91 arcsec
Resolution (Rayleigh) 1.1 arcsec
Star Diagonal 1.25
Tracking Modes Alt-Az, EQ North and EQ South
Tracking Rates Sidereal, Solar and Lunar
Tripod Steel


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