Schmidt-Cassegrain telescope with 280mm aperture, optics with Celestron StarBright™ XLT multi-coating, 2800mm focal length, eyepiece holder 1¼“, zenith prism 1¼“, eyepiece Plössl 40mm (70x), 9×50 finder scope, prism rail for CGE mount.
Spec:
- Optical design: Schmidt-Cassegrain
- Optical coating: Starbright XLT (Fully multi-coated)
- Telescope aperture: 279.4mm (11″)
- Focuser size (inches): 3.3″ & 2″ SC thread, 1.25″
- Tube (material): Aluminum
- Tube weight: 12.5kg
- Tube length: 24 in (610mm)
- Aperture ratio: f/10
- Resolution (DAWES): 0.41 arcseconds
- Resolution (RAYLEIGH): 0.50 arcseconds
- Focal length: 2800mm (110 in)
- Secondary mirror obstruction: 9.5cm
- Secondary mirror obstruction relative to diameter: 34%
- Secondary mirror obstruction relative to surface: 11.60%
- Visual field: 0.71°
- Limit size: 14.7
- Highest useful magnification: x661
- Light gathering capacity (compared to the human eye) x1593
Whats included:
- 11″ Schmidt-Cassegrain telescope, 3″ rail (Losmandy style)
- Focal length eyepiece: 40mm
- Viewfinder: 6×30
- Zenith prism: 1.25″ diagonal prism
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