Celestron
C8-A XLT Optical Tube Assembly
- Regular price
- $ 1,399.95
- Sale price
- $ 1,399.95
- Unit price
- per
This item is out of stock but you can place an order now and we’ll ship when it becomes available.
In StockOverview
- 8" Schmidt-Cassegrain Optical Tube Assembly
- Aluminum Optical Tube
- Celestron's premium StarBright XLT coatings
- 2032 mm focal length (f/10)
- 25 mm eyepiece included (81x)
- Visual back allows for use with 1.25" accessories
- 6x30 finderscope to help accurately find objects
- Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
- Includes choice of D-Style dovetail rail compatible with CGE mount, or V-Style dovetail rail compatible with CG-5 Advanced Series mount
Description
- 8" Schmidt-Cassegrain Optical Tube Assembly
- Aluminum Optical Tube
- Celestron's premium StarBright XLT coatings
- 2032 mm focal length (f/10)
- 25 mm eyepiece included (81x)
- Visual back allows for use with 1.25" accessories
- 6x30 finderscope to help accurately find objects
- Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
- Includes choice of D-Style dovetail rail compatible with CGE mounts, or V-Style dovetail rail compatible with CG-5 Advanced Series mounts.
Specifications
| Optical Design | Schmidt-Cassegrain |
| Aperture (mm) | 203.2 mm (8") |
| Focal Length | 2032 mm (80") |
| Focal Ratio | 10 |
| Focal Length of Eyepiece 1 (mm) | 25 mm (0.98") |
| Magnification of Eyepiece 1 | 81x |
| Finderscope | 6x30 |
| Star Diagonal | 1.25 |
| Optical Tube | Aluminum |
| Highest Useful Magnification | 480x |
| Lowest Useful Magnification | 29x |
| Limiting Stellar Magnitude | 14 |
| Resolution (Rayleigh) | 0.69 arc seconds |
| Resolution (Dawes) | 0.57 arc seconds |
| Light Gathering Power (Compared to human eye) | 843x |
| Secondary Mirror Obstruction | 64 mm (2.5") |
| Secondary Mirror Obstruction by Diameter | 31% |
| Secondary Mirror Obstruction by Area | 9.77% |
| Optical Coatings | StarBright XLT |
| Optical Tube Length | 432 mm (17") |
| Optical Tube Weight | 12.5 lbs (5.67 kg) |
| Dovetail Compatibility | CG-5 Mount |
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