The Celestron StarSense Explorer LT 127AZ revolutionises the manual telescope experience with built-in smartphone navigation. Using Celestron’s patented StarSense Sky Recognition Technology, it analyses star patterns through your phone to pinpoint exactly where your telescope is aimed — guiding you effortlessly to planets, galaxies, and nebulae in real time.
Simply dock your smartphone, launch the StarSense Explorer app, and follow the on-screen arrows as they lead you to celestial targets. Within minutes, you’ll be confidently exploring the sky — no star charts or complex alignments needed.
The 127mm Newtonian reflector delivers bright, detailed views of the Moon, Jupiter’s moons, Saturn’s rings, and deep-sky favourites like the Orion Nebula and Pleiades cluster. Its sturdy altazimuth mount with slow-motion control makes fine adjustments smooth and easy, while the lightweight 11.4 lb setup is perfect for travel and quick backyard sessions.
Key Features
- 127 mm Newtonian reflector with bright, sharp optics
- StarSense smartphone dock and app for real-time sky guidance
- Uses patented "Lost in Space Algorithm" (LISA) technology for precise positioning
- Compatible with most modern iOS and Android smartphones
- Simple altazimuth mount with slow-motion control for smooth tracking
- Includes 25 mm and 10 mm eyepieces, 2× Barlow lens, and red-dot finder
- Portable, lightweight design - ideal for city use or dark-sky trips
Specifications
Optical Tube Info
- Optical Design
- Newtonian Reflector
- Aperture
- 127mm
- Focal Length
- 1000mm
- Focal Ratio
- f/7.87
- Focal Length of Eyepiece 1
- 25mm
- Magnification of Eyepiece 1
- 40x
- Focal Length of Eyepiece 2
- 10mm
- Magnification of Eyepiece 2
- 100x
- Barlow Lens
- 2x
- Finderscope
- StarPointer™ red dot finderscope
- Optical Tube
- Steel
- Highest Useful Magnification
- 300x
- Lowest Useful Magnification
- 18x
- Limiting Stellar Magnitude
- 13
- Resolution (Rayleigh)
- 1.1 arc seconds
- Resolution (Dawes)
- .91 arc seconds
- Light Gathering Power (Compared to human eye)
- 329x
- Secondary Mirror Obstruction
- 41mm
- Secondary Mirror Obstruction by Diameter
- 32%
- Secondary Mirror Obstruction by Area
- 10%
- Optical Coatings
- Glass mirrors coated with aluminum and SiO2
- Optical Tube Length
- 457.2mm
- Optical Tube Diameter
- 165.1mm
- Optical Tube Weight
- 3.44 kg
- Dovetail
- None
