Description
Celestron C11 SCT OTA - CGE
The Schmidt Cassegrain Telescope(SCT) is a hybrid optical design termed catadioptric. The modern SCT is a popular telescope design due to it's compact size vs aperture. StarBright XLT coated optics housed in a lightweight aluminum tube round out this popular design.
Specs
SKU: | CEL-91036-XLT |
OpticalDesign: | Schmidt-Cassegrain(SCT) |
Glass Elements: | |
Aperture(mm): | 279.4 |
Aperture(in): | 11.0 |
FocalLength(mm): | 2800 |
FocalRatio: | 10.0 |
DawesLimit(arc seconds): | 0.42 |
RayleighLimit(arc seconds):: | 0.49 |
LimMagnitude: | 14.9 |
Central Obstruction(mm/%): | 95/34 |
Spot Size(um) | |
Back Focus(mm): | |
Wavelength Range(nm): | |
LightGrasp(>human eye): | 1593 |
Fastar(Hyperstar Available): | Y |
ImageCircle(mm): | |
Focuser: | Internal single speed focuser |
Dovetail Bar: | CGE/Losmandy |
Vented: | N |
MirrorLock: | N |
Dewshield: | Optional |
Finderscope: | 9X50 Straight Inverted Image |
Case: | Optional |
Coatings: | StarBright XLT |
Weight(lbs/kg): | 27.5/12.4 |
MaxMagnification: | 550 |
MinMagnification: | |
Magnification w/Popular Focal Length Eyepieces | Exit Pupli(mm)/Magnification(x) |
40mm Focal Length: | 4mm, 70x |
32mm Focal Length: | 3.2mm, 90x |
25mm Focal Length: | 2.5mm, 110x |
18mm Focal Length: | 1.8mm, 160x |
13mm Focal Length: | 1.3mm, 220x |
10mm Focal Length: | 1mm, 280x |
8mm Focal Length: | 0.8mm, 350x |
5mm Focal Length: | 0.5mm, 560x |
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