CELESTRON NEXSTAR 127SLT COMPUTERIZED TELESCOPE
Celestron’s innovative Nexstar Star Location Telescope (SLT) has been a customer favorite for years thanks to its unique combination of high-quality optics, a user-friendly computerized interface, and a sturdy single fork arm mount.
This telescope comes with a pre-assembled, adjustable stainless-steel tripod, quick release fork arm, NexStar computerized hand control, 127mm Maksutov-Cassegrain optical tube, and lots of bonus accessories.
The entire telescope kit is a simple, no-tool assembly and fast SkyAlign alignment procedure will have you ready to observe in minutes. This makes NexStar 127SLT your perfect companion for impromptu observing sessions and all-night stargazing marathons alike.
Your NexStar 127SLT 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.
Maksutov-Cassegrain Optical Design
The MAK is a catadioptric telescope, which means the optical design includes both a lens and a mirror. The light coming through a MAK passes through the corrector lens to the primary mirror and back to a spherical secondary mirror before it hits the eyepiece. Images are bright, sharp, and virtually free of chromatic aberration.
The Maksutov-Cassegrain’s optical design offers several unique benefits. Instead of a secondary mirror, the MAK features a “secondary spot” of reflective coating applied directly to the inside of the corrector plate. Because of this, the telescope does not require occasional collimation like a Schmidt-Cassegrain. Also, the secondary spot is significantly smaller than a traditional Schmidt-Cassegrain secondary mirror, giving the MAK its signature high-contrast views.
One important thing to note about Maksutov-Cassegrain telescopes is that the larger, heavier Maksutov corrector plate takes longer to cool down and adjust to ambient air temperature compared to a Schmidt-Cassegrain of the same aperture.
The Mount & Technologies
Computerized AltAzimuth Mount – The NexStar SLT telescope features a single fork arm altazimuth 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 40,000 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! For more information about our SkyAlign technology, visit here.
Power – 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 (sold separately). 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 power 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 (25mm 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™ red dot finderscope will help you quickly center an object in your eyepiece for easier observing.
NexStar 127SLT 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.
Starry Night Software
Your purchase includes a FREE download of Celestron’s Starry Night. This powerful software will help you learn about the night sky, celestial objects, and how to plan your next observing session. Celestron Starry Night is the premier astronomy software package on the market, providing resources and knowledge to view our solar system and beyond.
REVIEW of CELESTRON NEXSTAR 127SLT COMPUTERIZED TELESCOPE 👇
TECHNICAL SPECIFICATION
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Optical Design
Maksutov-Cassegrain
Focal Length
1500mm (59″)
Eyepiece 1
25mm (0.98″), Magnification: 60x
Eyepiece 2
9mm (0.35″), Magnification: 167x
Finderscope
StarPointer™ red dot finderscope
Highest Useful Magnification
300x
Lowest Useful Magnification
18x
Limiting Stellar Magnitude
13
Resolution (Rayleigh)
1.1 arc seconds
Resolution (Dawes)
0.91 arc seconds
Light Gathering Power
329x
Optical Coatings
Fully-Coated
Optical Tube Length
381mm (15")
Optical Tube Diameter
146.05mm (5.75")
Optical Tube Weight
8.7 lbs (3.95 kg)
Dovetail
CG-5 Dovetail bar
Mount Type
Computerized Altitude-Azimuth Single Fork Arm
Instrument Load Capacity
8 lbs (3.6 kg)
Tripod Height Range
762mm – 1270mm (30″ – 50″)
Tripod Leg Diameter
31.75mm (1.25″) Stainless steel
Mount Head Weight
5 lbs (2.3kg)
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
Dovetail Compatibility
CG-5 saddle plate
Auxiliary Ports
1x Aux port, 1x Hand Control port
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
Yes (1 Hand Control Port and 1 Aux Port)
Database
Over 40,000 objects including 220 top deep sky/solar system targets
Software
Celestron Starry Night, SkyPortal App
Included Items
Optical Tube | Single Fork Arm Mount & Tripod | Accessory Tray | NexStar Hand Control | 20 mm & 9 mm eyepiece | StarPointer™ red dot finderscope | Star Diagonal
☀️ Solar Warning:
➠ Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.
➠ Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.
➠ Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.