Celestron SC 152/1500 C6 Cassegrain OTA
Supplied as a standalone optical tube, the Celestron SC 152/1500 C6 Cassegrain OTA provides a 152mm Schmidt-Cassegrain with 1500mm focal length and Fastar compatibility.
- 152mm aperture provides 0.76-arcsecond resolution
- 1500mm focal length uses f/9.87 optics
- Fastar and HyperStar compatibility is specified
- 25mm eyepiece, diagonal, dovetail included
In Stock
Description
Flexible mounting is the defining feature of the Celestron SC 152/1500 C6 Cassegrain OTA, a standalone 152 mm Schmidt-Cassegrain optical tube with a 1500 mm focal length and listed f/10 optical ratio. The C6 OTA uses StarBright XLT coatings, internal primary-mirror focusing, Fastar and HyperStar compatibility, a 6×30 finder, 25 mm Plossl eyepiece, star diagonal, 1.25-inch visual back, and CG-5 Vixen-style dovetail hardware for compatible mounts.
The optical tube is supplied without an equatorial or alt-azimuth mount, tripod, counterweights, motorized tracking system, or power equipment, allowing the buyer to select a compatible platform separately. The compact aluminum tube supports the listed lunar, planetary, and deep-sky applications, while final tracking performance, payload support, camera compatibility, and alignment behavior depend on the separately selected mount and accessories.
Key Features of Celestron SC 152/1500 C6 Cassegrain OTA
This standalone Schmidt-Cassegrain optical tube combines a 152 mm aperture with a 1500 mm focal length, StarBright XLT coatings, internal focusing, Fastar and HyperStar compatibility, 25 mm eyepiece, star diagonal, optical finder, visual back, and CG-5 mounting hardware.
- 152 mm Schmidt-Cassegrain optical system
- 1500 mm focal length with listed f/10 optical ratio
- Premium StarBright XLT coatings
- Internal primary-mirror focus assembly
- Fastar and HyperStar compatible
- 6×30 optical finder scope
- 25 mm Plossl eyepiece and 1.25-inch diagonal
- CG-5 Vixen-style dovetail interface
Standalone Catadioptric Configuration
The supplied application is a standalone optical tube for lunar observation, planetary viewing, deep-sky inspection, and supported imaging configurations, while the final mount stability, tracking behavior, payload support, power requirements, camera connection, and control system depend on the separately selected telescope platform and compatible accessories.
Why Choose Celestron SC 152/1500 C6 Cassegrain OTA
This model is a suitable choice when a buyer wants a compact 6-inch Schmidt-Cassegrain optical tube with StarBright XLT coatings, long focal length, Fastar and HyperStar compatibility, internal focusing, supplied visual accessories, optical finder, and a CG-5 dovetail interface for a separately selected mount.
- Portable 152 mm catadioptric optical tube
- Long 1500 mm focal length with Fastar compatibility
- Eyepiece, diagonal, finder, visual back, and dovetail rail included
Celestron 2-Year Limited Warranty
The supplied product information lists a 2-year limited warranty for this optical tube assembly, while current manufacturer listings may identify separate regional warranty details, so buyers should confirm whether the coverage applies to the OTA, included accessories, focusing mechanism, dovetail hardware, and any separately purchased mount or imaging equipment used with the C6 system.
Celestron SC 152/1500 C6 Cassegrain OTA Specs
| Brand | Celestron |
| Full Model Code | Celestron C6 Optical Tube Assembly (91010-XLT) |
| Country of Origin | United States / China |
| Optical Design | Schmidt-Cassegrain (Catadioptric Core) |
| Aperture | 152 mm (5.98 inches) |
| Focal Length | 1500 mm |
| Focal Ratio | f/9.87 |
| Optical Coatings | Premium StarBright XLT High-Transmission Coatings |
| Secondary Mirror Obstruction | 55.88 mm |
| Secondary Mirror Obstruction by Diameter | 37% |
| Secondary Mirror Obstruction by Area | 14% |
| Resolving Power | 0.76 Arcseconds (Dawes), 0.91 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 13.4 |
| Highest Useful Magnification | 354x |
| Lowest Useful Magnification | 22x |
| Optical Tube Material | Aluminum |
| Focuser Style & Mechanism | Internal Primary Mirror Focus Assembly |
| Mirror Lock Mechanism | No (Fastar and HyperStar Compatible) |
| Optical Tube Dimensions | 184 mm x 406.4 mm |
| Optical Tube Weight | 4.54 kg (10.0 lbs) |
| Mount Attachment Type | CG-5 Dovetail Bar (Vixen Style Profile) |
| Finder Scope Specification | 6x30 Optical Finder Scope with Bracket |
| Included Accessories | 25mm Plossl Eyepiece (60x), 90-Degree Star Diagonal (1.25-inch), 1.25-inch Visual Back, CG-5 Dovetail Rail Profile |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Standalone optical core optimized for planetary tracking and deep sky observation, providing an ultra-portable f/10 light collection module compatible with standard mobile mounts. |






























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