Celestron Nexstar 6 SLT
Celestron Nexstar 6 SLTCelestron Nexstar 6 SLTCelestron Nexstar 6 SLT
Celestron Nexstar 6 SLTCelestron Nexstar 6 SLT

Celestron Nexstar 6 SLT

  (3 Reviews)
✓ 2 year warranty


1x in stock shipped 1-2 working days

"It is the superb 150mm C6 Schmidt-Cassegrain optical tube that affords this NexStar SLT model a certain prestige. Natively f/10 but capable of working at f/6.3 and f/1.95 with optional accessories, the versatile C6 strikes a balance between a manageable physical size and combining an impressive visual or photographic performance on a wide range of celestial objects." Astronomy Now. Full review (PDF)

About this product

Model:  cel_slt_6
Part Number:  22088-CGL

The Celestron Nexstar 6 SLT is a computerized GoTo telescope with high quality, high contrast Schmidt-Cassegrain optics. 

Celestron’s innovative NexStar Star Location Telescope (SLT) has been a customer favourite for years thanks to its unique combination of high quality optics, user-friendly computerized interface and a sturdy single fork arm mount.

This telescope comes with a preassembled, adjustable stainless steel tripod, quick release fork arm, NexStar+ computerized hand control, 6” Schmidt-Cassegrain optical tube, and lots of bonus accessories.

The entire telescope kit weighs in at just 8.2kg. The simple, no-tool assembly and fast SkyAlign alignment procedure will have you ready to observe in minutes. This makes NexStar 6 SLT  your perfect companion for impromptu observing sessions and all-night stargazing marathons alike.

Your NexStar 6 SLT will reveal details of the lunar surface, Venus and its phases,  Jupiter and its four moons, and Saturn with its rings plainly visible. It can also be used as a land-based spotting telescope for daytime and wildlife observations.

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
  • Celestron's Starry Night Special Edition Software, SkyPortal App.
  • 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 150mm Schmidt-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 Celestron's Starry Night Special Edition Software, SkyPortal App


  • Proven NexStar computer control technology
  • NexStar+ Database contains over 120000 objects including 220 of the best deep sky and solar system 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)

Telescope Field of View Simulator

Product Videos

What's in the box

  • Telescope OTA
  • SLT Mount, Tripod & Handset
  • StarPointer Finderscope
  • 20mm & 9mm Eyepieces
  • 1.25" Star Diagonal


OPTICAL DESIGNSchmidt-Cassegrain
WEIGHT8.2 kg
APERTURE150 mm (6 in)
MOUNTComputerized Altitude-Azimuth Single Fork Arm
ACCESSORY TRAYNo Tool, Quick release
CD ROMCelestron's Starry Night Special Edition Software, SkyPortal App
RESOLUTION (DAWES) 0.77 arcsec
COMPUTER HAND CONTROLFully Computerized / Flash Upgradeable
SLEW SPEEDSNine slew speeds: 4°/sec, 2°/sec, 1°/sec, .5°/sec, 32x, 16x, 8x, 4x, 2x 
TRACKING RATESSidereal, Solar and Lunar
TRACKING MODESAlt-Az, EQ North and EQ South
ALIGNMENT PROCEDURESSkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align
DATABASENexStar+ Database contains over 120000 objects

Downloads / Manuals

The following manuals and downloads are available for this product:



Celestron Firmware Manager (CFM)

Customer reviews

Average Rating (3 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Brilliant scope and service
16 July 2020  | 

Firstly, I am a beginner to astronomy and astrophotography and the 6 SLT seemed like the logical next step for me after buying a basic Celestron astromaster 76eq.

A few hiccups with delivery and an issue with the mount. FLO, Steve and the team have been fantastic, having my mount fixed and keeping me upto date along the way. Also providing expert advice on where to go next including a possible ZWO ASI.

The scope is fantastic for the price, I am yet to use it to its full potential because of the weather but its been so easy to set up and use, and I managed some exceptionally clear views of the moon on the first night just through the 25mm eye peice. A great worth while upgrade from a basic scope.

Would also advise getting the celestron/SKYWATCHER portable power tank/torch and power cable from FLO also, alot easier to run the scope on.

Rating (max 5):  
Upgrade from 70mm refractor and I am very pleased.
24 April 2020  | 

Had a 70mm telescope as a gift and was only happy looking at the moon and land observations for fun. Bought this during Covid19 Lockdown and have only had a few clear enough skies to explore a little so far, but, wow, what a difference. Still waiting for the moon to make a viewable appearance but will probably add aCelestron f/6.3 Focal Reducer for wider sykky viewing. Waiting for WiFi module to arrive for full remote control and sky viewing. Great value reflector, Sturdy enough tripod (just). Easy focus. Overall very satisfied.

Rating (max 5):  
Great scope, very portable for maximum aperture
21 July 2019  | 

I have purchased this telescope a couple of weeks ago and used it intensively for a couple of nights so I wanted to share my experience. The delivery was quick (I am in France) and everything was in good shape. Mounting and set up in the field is very quick and easy. I observe with other amateurs with equatorial mounts telescope and I am usually the first to finish. The Red Dot is not aligning very well for me but as you use it just for the initial alignment it is pretty easy to compensate.

The mount performs very well. Skyalign is done very quickly and from there you can go on a full tour and see a lot of objects. In my last session, I saw approximatively 45 objects in less than 2 hours with a nice night. The mount is light which is great for transport but indeed will wobble a bit when focusing. It will settle down after a few seconds and stays stable after. It might be a bit tricky when focusing but if you get the trick it is no big deal. Tracking is great and GOTO accuracy pretty good for such a light mount.

Visual quality is amazing for such a compact scope. Planets look great and many deep-sky objects can be seen. For some objects, my scope was outperforming a Skywatcher Newton F8, especially clusters and planets. Accessories are ok but recommend to upgrade the eyepieces as soon as possible. 25mm is fairly decent but the 9mm is a bit of a letdown.

Overall it is a great telescope package. It is very compact and lightweight making it a great combo for a very portable astronomy setup. Highly recommended.



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