Celestron Nexstar 127 SLT
Celestron Nexstar 127 SLTCelestron Nexstar 127 SLTCelestron Nexstar 127 SLTCelestron Nexstar 127 SLT

Celestron Nexstar 127 SLT

  (5 Reviews)
✓ 2 year warranty


Out of stock due 2-4 working days

About this product

Model:  slt127
Part Number:  22097-CGL

The Celestron Nexstar 127 SLT is a computerized GoTo telescope with high resolution, high contrast Maksutov-Cassegrain optics. 

Observe details on the lunar surface, Venus and its phases, polar caps on Mars, Jupiter and its four moons, Saturn with its rings and much more!

Intelligent Design

Can be powered by 8 AA (user supplied) batteries or a suitable AC adapter or portable power-tank. This telescope loves to travel! The ergonomically designed hand control can be removed from its holder for remote use or left in situ for hands-free operation. With a touch of a button you can select the object catalog, change the slew speed, view fascinating information about an object, or simply know if a desired object is visible in the sky. 

Quick and Easy to Setup

Supplied with pre-assembled, adjustable stainless steel tripod and quick-release fork arm and optical-tube-assembly for quick and easy setup. No tools required!

Celestron’s Revolutionary SkyAlign

Using Celestron’s patented SkyAlign (patent pending), simply input the date, time and location into the hand control then slew the telescope to any three bright celestial objects in the sky. You do not need to know the names of the stars, you can even select the Moon or bright planets!


  • SkyAlign - the simplest, fastest & most beginner friendly alignment method available on any computerised telescope.
  • Four additional alignments including 1 star align and solar system align
  • Auxiliary port for additional accessories
  • PC control software INCLUDED
  • GPS module compatible
  • User friendly StarPointer red-dot finderscope
  • Compatible with Celestron’s NexRemote for advanced PC control
  • Internal battery compartment - no external corded battery pack


  • High quality 127mm 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
  • Includes CD-ROM The Sky Astronomy Software which provides education about the sky and printable sky maps


  • 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 SkySync GPS Accessory (93969)
  • 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

Product Videos

What's in the box

  • Telescope OTA
  • SLT Mount, Tripod & Handset
  • StarPointer Finderscope
  • 25mm & 9mm Eyepieces
  • 1.25" Star Diagonal
  • The Sky Level 1 and NexStar Observers List


OPTICAL DESIGN Maksutov-Cassegrain
WEIGHT 18 lb (8.16 kg)
APERTURE 127 mm (5 in)
FOCAL LENGTH 1500 mm (59.06 in)
MOUNT Motorized Altazimuth
EYEPIECE 1 25 mm (0.98 in)
EYEPIECE 2 9 mm (0.35 in)
ACCESSORY TRAY No Tool, Quick release
CD ROMThe Sky Level 1 and NexStar Observers List (v2.6.4c)
RESOLUTION (DAWES)  0.91 arcsec
LINEAR FIELD OF VIEW (@1000 yds) 44 ft (13.41 m)
COMPUTER HAND CONTROL Fully Computerized / Flash Upgradeable
SLEW SPEEDS Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, .5°/sec, 32x, 16x, 8x, 4x, 2x 
TRACKING RATES Sidereal, Solar and Lunar
TRACKING MODES Alt-Az, EQ North and EQ South
ALIGNMENT PROCEDURES SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align
DATABASE 4,000 Object Database
GPS Optional CN-16 GPS Accessory

Downloads / Manuals

The following manuals and downloads are available for this product:


NexStar SLT Series MAKs Manual (PDF)


Celestron Firmware Manager (CFM)

Customer reviews

Average Rating (5 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Fantastic telescope
25 January 2019  | 

Absolutely brilliant, i would say that this telescope is beginner to mid-range having seen it's capabilities.
The only improvement i'd make to the SLT127 is to have a sturdier mount, having said this, the mount as it is serves it's purpose well.
The optics are arguably the most important feature of a telescope, and the optics with this telescope is of very high quality. I would go as far to say that when it comes to planetary views, the SLT127 can provide images as good as an 8 inch or 10 inch aperture telescope (though aperture does not really matter as much as focal length for planetary views, i mention it as the common perception is bigger is better). With this telescope i have seen the following: Excellent lunar views; fantastic details. Jupiter: cloud belts and festoons, the Great Red Spot and transit shadows of the four visible moons, Saturn and the Cassini division within the rings, Titan. Have also enjoyed fantastic views of Orion Nebula and Pleiades.
Sun filters are available for this telescope as well as t-ring for DLSR cameras and astro photography!

Rating (max 5):  
nice Product
13 June 2018  | 

the mount is very unstable , this is the big problem of this telescope, focus is very difical becouse of the mount, image qualaty is ok ,

Rating (max 5):  
Great telescope for beginner.
05 June 2018  | 

This is my first telescope (apart from a brief loan of a similar one) and I expect it will be some time before I'm looking to upgrade.
There are comprehensive instructions in the manual, but the quick start up guide is sufficient to get you searching the stars.
The first thing I looked at was Jupiter, and I could clearly see the bands of clouds and 4 of it's moons.
I'm looking forward to finding a better place to use the scope than my back garden, living in a large city is bad enough, but the security lights around the school behind my house cause a lot of light pollution.

Rating (max 5):  
Great scope, adequate mount
18 January 2012  | 

I bought this as my first telescope a little over 6 months ago and have been very pleased with the objects it has allowed me observe.

Views of Saturn, Jupiter, Mars have all been great and surfing down the line between night and day on the moon and shows a plenty of detail and relief. It has also allowed me to view many brighter deep space objects such as globular clusters from under fairly heavily light polluted skies.

Once properly aligned the tracking works well and objects can be found reasonably easily with the goto functionality, although you'll want to use the 25mm EP when moving to a new target to increase the chance of it being in the field of view when you get there.

I purchased an external 12v power supply and one of the skytron power cables also sold here to go with it and have used it for hours at a time without issue.

The tripod is reasonably steady, but probably the weakest part of the package. However there are quite a few easy things you can do to increase it's stability when observing.

The whole setup is quite easy to store as, as the OTA fits easily into something the size of a regular toolbox and the tripod folds up.

I can't comment on it's uses for Astro Photography though as I'm purely a visual observer so far.

Rating (max 5):  
Possibly the best entry-mid level goto telescope money can buy
22 December 2011  | 

Bought this as my second telescope, my first being a basic skywatcher 130p. I can honestly this telescope provides the best value for the price of all the other scopes i have looked into while making the decision of what to go for. The nexstar go to system is simple and easy to use and very easy to align. The red dot finder scope is extremely accurate and easy to align. The eyepieces supplied are of good quality. Easy brings up jupiters main bands even from close to a city centre without any filters for light pollution. Was also surprised to be able to see M57 with some detail from the same location. All in all a fantastic scope with no complaints although the first bit to get upgraded will be the tripod. For normal viewing this is fine and sturdy enough but when making the step into astrophotography a stable one may be necessary.


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