The Ritchey-Chrétien telescope is the most popular optical design used by professional astronomers and astroimagers all over the world. The Hubble Space Telescope itself uses the RC configuration.
All new GSO RC telescopes now come with a focuser upgrade kit allowing you to connect the ZWO & QHY EAF focusers without additional modification.
The Guan Sheng Optical RC's are excellent astrographs with solid build quality and precisely-figured optical surfaces. The concave hyperbolic primary and convex secondary mirrors deliver excellent correction across the field. The low thermal expansion quartz mirrors have a surface correction of 1/12th Lambda PV or better and have highly reflective dielectric coatings ensuring 99% reflectivity.
The telescope is made with a rigid steel tube and features computer-optimized baffles to eliminate stray light.
The 6" f/9 Ritchey-Chrétien comes with a dual-speed 2" 10:1 Crayford focuser with 41mm of focus travel and includes a 1.25" adapter and a selection of 2" & 1" extension rings to make connecting a variety of imaging accessories straightforward.
The is compatible with both the 6" and 8" GSO RC telescopes.
Specifications
| Optical design | Ritchey-Chrétien |
|---|---|
| Diameter | 152.4 mm |
| Focal length | 1370 mm |
| Focal ratio | f/9 |
| Linear obstruction | 76 mm |
| Corrected field | 32 mm |
| Backfocus distance | 159 mm with standard focuser, 254 mm from rear cell |
| Weight | 5.4 kg |
| Tube outer diameter | 191 mm |
| Tube length | 500 mm without focuser |
| SKU | GSRC6 |
Items included
- GSO 6" f/9 RC tube
- 2" dual-speed Crayford focuser
- Vixen dovetail bar
- 2 x 1" M90 male to M90 female extension tubes
- 1 x 2" M90 male to M90 female extension tube
- Finderscope bracket
- Dust caps
For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.
