NexStar 127SLT Computerized Telescope
All Frontier models feature Hawke’s H7 optics, offering stunning high definition viewing with incredible colour control and phase correction.
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 frequent 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.
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.
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Specification
General | |
|---|---|
Optical Design: | Maksutov-Cassegrain |
Aperture: | 127mm (5″) |
Focal Length: | 1500mm (59″) |
Focal Ratio: | f/12 |
Focal Length of Eyepiece 1: | 25mm (0.98″) |
Magnification of Eyepiece 1: | 60x |
Focal Length of Eyepiece 2: | 9mm (0.35″) |
Magnification of Eyepiece 2: | 167x |
Finderscope: | StarPointer™ red dot finderscope |
Star Diagonal: | 1.25 |
Optical Tube: | Aluminum |
Highest Useful Magnification: | 300x |
Lowest Useful Magnification: | 18x |
Limiting Stellar Magnitude: | 13 |
Resolution (Rayleigh): | 1.07 arc seconds |
Resolution (Dawes): | 0.89 arc seconds |
Light Gathering Power (Compared to human eye): | 345x |
Secondary Mirror Obstruction: | 38mm (1.5″) |
Secondary Mirror Obstruction by Diameter: | 29% |
Secondary Mirror Obstruction by Area: | 8.5% |
Optical Coatings: | Aluminum |
Optical Tube Length: | 635mm (25″) |
Optical Tube Diameter: | 165.1mm (6.5″) |
Optical Tube Weight: | 8.8 lbs (3.99 kg) |
Dovetail: | 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: | CG-5 saddle plate |
Number of Auxiliary Ports: | 1x AUX Port and| 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 40,000 including 220 of the best deep sky and solar system objects |
Software: | Celestron Starry Night Special Edition Software and SkyPortal App |
Total Kit Weight: | TBD |
Included Items: | Optical Tube Single Fork Arm Mount and Tripod Accessory Tray NexStar+ Hand Control 20mm and 9mm 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. |