Celestron AC 102/660 Astromaster 102 AZ
Built for straightforward manual viewing, the Celestron AC 102/660 Astromaster 102 AZ combines a 102mm achromatic refractor with 660mm focal length and a fluid-damped alt-azimuth mount.
- 102mm aperture provides 1.14-arcsecond resolution
- 660mm focal length uses f/6.5 optics
- Fluid-damped panhandle mount supports manual movement
- 20mm and 10mm eyepieces included
In Stock
Description
Daytime spotting and nighttime sky sweeping come together in the Celestron AC 102/660 Astromaster 102 AZ, an achromatic refractor with a 102 mm aperture, 660 mm focal length, and listed f/6.5 optical ratio. Its manual alt-azimuth panhandle mount uses a fluid-damped clutch, while the steel tripod, built-in StarPointer finder, erect-image diagonal, 20 mm and 10 mm eyepieces, accessory tray, and Starry Night software support both terrestrial and celestial observation.
The official Celestron configuration uses fully coated glass optics, a 90-degree erect-image diagonal, a built-in red dot finder, manual panhandle control, and an adjustable full-height steel tripod. The included 20 mm and 10 mm eyepieces provide the stated 33x and 66x magnifications, while the supplied Starry Night Basic Edition software supports the listed introductory astronomy setup without adding a Barlow lens or smartphone adapter.
Key Features of Celestron AC 102/660 Astromaster 102 AZ
This complete manual refractor package combines a 102 mm achromatic optical tube with a fluid-damped alt-azimuth mount, upright viewing diagonal, steel tripod, integrated red dot finder, standard eyepieces, accessory tray, and software for convenient daytime and nighttime observation.
- 102 mm achromatic refractor
- 660 mm focal length with listed f/6.5 optical ratio
- Manual alt-azimuth panhandle mount
- Fluid-damped pan clutch assembly
- Fully coated glass optics
- 20 mm and 10 mm eyepieces
- 90-degree erect-image diagonal
- Built-in StarPointer red dot finder
Terrestrial and Celestial Observation
The supplied application supports manual viewing of large open star fields, the Moon, planets, brighter celestial targets, and daytime landscapes through the erect-image diagonal, while the panhandle mount provides direct positioning and the fluid-damped clutch helps control manual movement without implying motorized tracking or electronic object location.
Included Accessories
The official package includes the optical tube, manual alt-azimuth mount, full-height steel tripod, accessory tray, 20 mm erect-image eyepiece, 10 mm standard eyepiece, 90-degree erect-image diagonal, built-in StarPointer red dot finder, Starry Night Basic Edition software, and the mounting hardware supplied with the AstroMaster 102AZ system.
- 20 mm and 10 mm eyepieces
- 90-degree erect-image diagonal and built-in red dot finder
- Steel tripod, panhandle mount, accessory tray, and Starry Night software
Celestron 2-Year Limited Warranty
The official Celestron product information lists a 2-year limited warranty for this telescope, and buyers should review the current US warranty conditions, registration requirements, exclusions, accessory coverage, and authorized service process before purchase because warranty eligibility can depend on the sales channel, original purchaser status, and applicable regional support policy.
Celestron AC 102/660 Astromaster 102 AZ Specs
| Brand | Celestron |
| Full Model Code | Celestron AstroMaster 102AZ |
| Country of Origin | United States / China |
| Optical Design | Achromatic Refractor |
| Aperture | 102 mm (4.0 inches) |
| Focal Length | 660 mm |
| Focal Ratio | f/6.5 |
| Optical Coatings | Fully Coated Glass Optics |
| Secondary Mirror Obstruction | 0 mm (0%) |
| Secondary Mirror Obstruction by Area | 0% |
| Resolving Power | 1.14 Arcseconds |
| Limiting Visual Magnitude | 12.5 |
| Highest Useful Magnification | 241x |
| Lowest Useful Magnification | 15x |
| Optical Tube Material | Aluminum |
| Focuser Style & Mechanism | 1.25-inch Standard Rack and Pinion Focuser |
| Mirror Lock Mechanism | No (Refractor Tube Configuration) |
| Optical Tube Dimensions | 110 mm x 711 mm |
| Optical Tube Weight | 2.7 kg (5.95 lbs) - Tube Only |
| Mount Attachment Type | Alt-Azimuth Panhandle Mount with Fluid-Damped Pan Clutch Assembly |
| Finder Scope Specification | Built-In StarPointer Red Dot Finder |
| Included Accessories | 20mm Erect Image Eyepiece (33x), 10mm Standard Eyepiece (66x), 90-Degree Erect Image Diagonal (1.25-inch), Alt-Azimuth Mount, Steel Tube Tripod, Accessory Tray, Starry Night Basic Edition Software |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Rich-field manual alt-azimuth tracking of large open star fields and daytime landscapes, utilizing an integrated upright diagonal prism to balance celestial sweeps with direct terrestrial spotting. |




























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