Celestron AstroMaster 102AZ Refractor Telescope 102mm Aperture 660mm Focal Length Black

The Celestron AstroMaster 102AZ is a powerful refractor telescope designed for beginners and intermediate astronomers. With a 102mm aperture and 660mm focal length, it delivers bright, clear views of the Moon, planets, and bright deep-sky objects. The manual altazimuth mount and pre-assembled steel tripod make setup quick and easy, so you can start observing in minutes.

Advantages

Large 102mm aperture gathers 212x more light than the human eye, revealing details on Jupiter's cloud bands, Saturn's rings, and lunar craters. The fully coated glass optics enhance contrast and reduce glare. The included erect image diagonal ensures correctly oriented views, ideal for terrestrial and astronomical use. The StarPointer finderscope simplifies target acquisition.

Suitable for

• Beginner astronomers seeking a high-quality refractor
• Family stargazing and educational use
• Terrestrial observation (landscapes, wildlife) with erect image
• Observing lunar details, planets, and bright deep-sky objects

Key specifications

• Optical Design: Refractor
• Aperture: 102 mm (4 in)
• Focal Length: 660 mm
• Focal Ratio: f/6.5
• Mount Type: Manual Altazimuth
• Highest Useful Magnification: 241x
• Lowest Useful Magnification: 15x
• Limiting Stellar Magnitude: 12.5
• Resolution (Rayleigh): 1.37 arc sec
• Resolution (Dawes): 1.14 arc sec
• Light Gathering Power: 212x
• Optical Coatings: Fully Coated
• Finderscope: Built-in StarPointer
• Eyepieces: 20mm (33x), 10mm (66x)
• Diagonal: 1.25" Erect Image
• Tripod: Pre-assembled Steel Tube with Accessory Tray
• Software: Starry Night Basic Edition Download
• Optical Tube Material: Aluminum
• Color: Black
• Dovetail Compatibility: Vixen-style

Recommendations

Celestron AstroMaster 102AZ is an excellent choice for anyone looking to explore the night sky with a reliable, easy-to-use refractor. Its large aperture and quality optics provide impressive views, while the sturdy mount and tripod ensure stability. Perfect for both astronomy and daytime observation.