Celestron Royal Observatory Greenwich StarSense Explorer DX 100AZ Smartphone App-Enabled Refractor Telescope

Finding your way around the night sky feels notably more straightforward with this Celestron Royal Observatory Greenwich StarSense Explorer DX 100AZ refractor telescope. Created as a special edition collaboration with the Royal Observatory, Greenwich, it pairs a 100mm refractor optical tube with a 660mm focal length, f/6. 5 optical system and a manual alt-azimuth mount, bringing together approachable handling and app-guided navigation in a format that suits beginners particularly well.

The StarSense dock works with compatible smartphones and the StarSense Explorer app to guide the telescope towards visible celestial objects on screen. Slip clutches and geared slow-motion controls on both axes help with smooth manual tracking, while the 90 erect image diagonal also supports daytime viewing. Fully XLT coated glass optics, a full-height tripod and a StarPointer red dot finderscope complete a well-rounded setup for general astronomy and wider terrestrial observation.

Key features

• 100mm refractor telescope with 660mm focal length and f/6. 5 focal ratio
• StarSense smartphone dock with app-enabled sky navigation
• Manual alt-azimuth mount with slip clutches and geared slow-motion controls in both axes
• Fully XLT coated glass optics
• Includes 25mm and 10mm eyepieces, giving 26x and 66x magnification
• 90 erect image diagonal for astronomical and daytime viewing
• StarPointer red dot finderscope
• Full-height aluminium tripod with accessory tray
• Model number: 22467-CGL

Specifications

Optics

• Optical design: Refractor
• Aperture: 100mm
• Focal length: 660mm
• Focal ratio: f/6. 5
• Highest useful magnification: 240x
• Lowest useful magnification: 15x
• Limiting stellar magnitude: 12. 5
• Resolution (Rayleigh): 1. 37 arc seconds
• Resolution (Dawes): 1. 14 arc seconds
• Optical coatings: Fully XLT Coated glass optics
• Optical tube: Aluminium
• Light gathering power (compared to human eye): 212x

Eyepieces

• Eyepiece 1 focal length: 25mm
• Eyepiece 1 magnification: 26x
• Eyepiece 2 focal length: 10mm
• Eyepiece 2 magnification: 66x
• Barlow lens: None

Mount

• Mount type: Manual alt-azimuth
• Slew speeds: Manual
• Alignment procedure: Use StarSense Explorer app
• GPS: Uses phone's GPS
• Dovetail compatibility: CG-5 dovetail bar

Software

• Software: StarSense Explorer app
• Software: SkyPortal app
• Software: Celestron Starry Night Basic Edition Software

Build

• Finderscope: StarPointer red dot finderscope
• Accessory tray: Yes
• Power requirements: None
• Total kit weight: 6. 44kg

Sizing

• Optical tube length: 812. 8mm
• Optical tube diameter: 118mm
• Maximum height adjustment range (includes mount and tripod): 1244. 6mm

In the box

• 25mm eyepiece
• 10mm eyepiece
• 90 erect image diagonal
• StarPointer red dot finderscope
• Full-height tripod
• Accessory tray
• Celestron Starry Night Basic Edition Software

Support & warranty

• 2-year warranty

Rackhams Reference : M9YMNHQXCJ