The largest aperture telescope in the excellent SLT range more than capable of serious observation, Celestron’s innovative NexStar Star Location Telescope (SLT) has been a customer favorite 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 18 pounds. The simple, no-tool assembly and fast SkyAlign alignment procedure will have you ready to observe in minutes. This makes NexStar 6SLT your perfect companion for impromptu observing sessions and all-night stargazing marathons alike.
Your NexStar 6SLT will reveal details of the lunar surface, Venus and its phases, the polar caps on Mars, 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.
Schmidt-Cassegrain Optical Tube
The NexStar 6SLT comes with a 6” Schmidt-Cassegrain optical tube, a great multi-use telescope with 1500 mm of focal length (f/10). The Celestron C6 is equipped with patented StarBright XLT coatings, which visibly increase contrast and bring out subtle detail on the Moon, planets, and faint nebulae. These coatings also increase light transmission for brighter deep space images.
The Celestron C6 strikes an excellent balance between portability, ease of use, light gathering ability and price.
The Mount & Technologies
Computerized Alt-Azimuth telescope - The NexStar SLT telescope features a single fork arm alt-azimuth mount, which allows the telescope to track the desired objects as they appear to move across the night sky. The mount sits on a pre-assembled, adjustable steel tripod.
NexStar+ Hand Control
This computerized hand control enables you to automatically slew to any of 4,000+ celestial objects with the push of a button. The NexStar+ database includes more than 600 galaxies, 300 clusters and dozens of beautiful binary stars. Not sure what to observe? Choose the Sky Tour feature and the NexStar+ hand control will automatically generate a list of all the best celestial objects currently visible based on your exact time and location.
SkyAlign Technology
Our proprietary SkyAlign alignment procedure makes setting up and using a computerized telescope faster and easier than ever before. Point the telescope at three bright objects in the sky, and the telescope can triangulate its position and locate any other object in the sky automatically. You don’t need to know the names of the stars—you can even pick the Moon or bright planets!
Power requirements
Go anywhere! Feel free to enjoy your NexStar SLT in remote dark sky locations—it’s powered by 8 AA batteries (not included) or a PowerTank portable battery. The internal battery compartment provides power to the high precision servo motors for rigid low-vibration performance while eliminating cord wrap issues associated with external battery packs. You may also charge your telescope with a 12V AC adapter (sold separately).
Accessories Included
Your telescope includes a StarPointer red dot finderscope, a star diagonal, and two eyepieces (20mm and 9mm). The two eyepieces offer different magnifications for low or high powered observing. The star diagonal provides a right-side-up view and a more comfortable viewing angle when looking up at the sky. The StarPointer finderscope will help you quickly center an object in your eyepiece for easier observing.
NexStar 6SLT is ready to grow with you as you become a more experienced amateur astronomer. It’s compatible with all Celestron’s latest accessories, including StarSense AutoAlign, SkyPortal WiFi module, and PowerTank Lithium Pro.
Specifications
Optical Tube Info:
Optical Design Schmidt-Cassegrain
Aperture 150mm (6")
Focal Length 1500mm (59")
Focal Ratio f/10
Focal Length of Eyepiece 1 20mm (.78")
Magnification of Eyepiece 1 75x
Focal Length of Eyepiece 2 9mm (.35")
Magnification of Eyepiece 2 167x
Finderscope StarPointer Finderscope
Star Diagonal 1.25" Star Diagonal
Optical Tube Aluminum
Highest Useful Magnification 354x
Lowest Useful Magnification 21x
Limiting Stellar Magnitude 13.4
Resolution (Rayleigh) .93 arc seconds
Resolution (Dawes) 0.77 arc seconds
Light Gathering Power (Compared to human eye) 459x
Secondary Mirror Obstruction 55.88mm (2.2")
Secondary Mirror Obstruction by Diameter 37%
Secondary Mirror Obstruction by Area 14%
Optical Coatings StarBright XLT
Optical Tube Length 406.4mm (16")
Optical Tube Diameter 181mm (7.1")
Optical Tube Weight 8 lbs (3.6 kg)
Dovetail Vixen/CG-5 Dovetail bar
Mount Info:
Mount Type Computerized Altitude-Azimuth Single Fork Arm
Instrument load capacity 8 lbs (3.6 kg)
Height adjustment range (includes mount and tripod) 762mm - 1270mm (30" - 50")
Tripod Leg Diameter 31.75mm (1.25") Stainless steel
Mount Head Weight 5 lbs (2.3kg)
Accessory Tray Yes
Tripod Weight 5 lbs (2.3kg)
Slew Speeds 9 slew speeds - max speed 3°/second
Tracking Rates Sidereal, Solar and Lunar
Tracking Modes Alt-Az, EQ North and EQ South
GPS N/A
Dovetail Compatibility Vixen/CG-5 saddle plate
Number of Auxiliary ports 1x Aux port | 1x hand control port (hand control can use either port)
Autoguide port No
USB Port Yes, Input on hand control
Power Requirements 12 VDC - 8xAA Batteries (not included)
Motor Drive DC Servo Motor
Alignment Procedures SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align
Periodic Error Correction No
Computerized Hand Control 1 Hand Control Port and 1 Aux Port
NexStar+ Database Over 120,000 including 220 of the best deep sky and solar system objects
Software Celestron's Starry Night Special Edition Software, SkyPortal App
Total Kit Weight 18 lbs (8.2 kg)
Included Items Optical Tube | Single Fork Arm Mount & Tripod | Accessory Tray| NexStar+ Hand Control | 20 mm & 9 mm eyepiece | StarPointer finderscope | Star Diagonal
Customer Reviews 
Looking towards the stars and beyond with the 6SLT New for 2019 from Celestron, is this 150mm (6 inch) (SCT) Schmidt Cassegrain (SLT) star Locating Telescope. Upon arrival, the telescope is broken down into three separate boxes and was setup within a couple of minutes. Celestron is well known for quality of build and eye pieces and I'm satisfied. (11/05/2019) Karl - West Midlands
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