Sky-Watcher Skymax 90
Sky-Watcher SKU: S11500 | Helix SKU: CTS11500
SKU | S11500 |
UPC | 050234115001 |
Optical Info | |
---|---|
Optical Design | Mak-Cass |
Mirror Coatings | 94% Aluminum |
Lens Coatings | Fully Multi-Coated |
Glass Type | BK7/Borosilicate |
Primary Aperture (mm) | 90 |
F/Ratio | 13.9 |
Focal Length (mm) | 1250 |
Secondary Diameter | 29mm |
Secondary Obstruction (by diameter) | 32% |
Secondary Obstruction by Area | 10% |
Observational Info | |
Dawes Limit | 1.29 |
Rayleigh Limit | 1.55 |
Limiting Mag. | 12.3 |
Minimum Magnification | 13 |
Maximum Magnification | 177 |
Light Gathering (compared to next size down) | 27% |
General Info | |
Focuser | Primary Mirror |
OTA Length (Retract/Ext.) | 11″ |
OTA Outer Diameter | 4.125″ |
OTA Weight (with accessories) | 3.6 |
Accessories | |
Included Finder | Red Dot |
Included Diagonal | 1.25″ Star Diagonal |
Mounting Accessories | 1/4-20″ Foot |
Included Eyepieces | 25/10 Wide Angle |
Magnification w/ Included Eyepieces | 50x/125x |
Included Case | Yes |
Corrector | No |
Anonymous –
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