Celestron 8" SCT

Celestron 8″ SCT Telescope

The 8 inch Celestron telescope is the workhorse of my observatory.

I tend to be a brand loyalist when I first make a purchase, making sure as many products come from the same manufacturer. Maybe it’s a misguided belief that if they all have the same name on the gear that it should all work better.

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Specs

Aperture203.2mm (8″)
Focal Length2032mm (80″)
Focal Ratiof/10
Highest Useful Magnification480x
Lowest Useful Magnification29x
Limiting Stellar Magnitude14
Resolution (Rayleigh)0.69 arc seconds
Resolution (Dawes)0.57 arc seconds
Light Gathering Power (Compared to human eye)843x
Secondary Mirror Obstruction64mm (2.5″)
Secondary Mirror Obstruction by Diameter31%
Secondary Mirror Obstruction by Area9.77%
Optical CoatingsStarBright XLT
Optical Tube Length432mm (17″)
Optical Tube Diameter238mm (9.37″)
Optical Tube Weight12.5 lbs (5.67 kg)

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  • 8″ Celestron SCT Telescope