6" SCT Optical Tube Assembly (CG5)
$839.95
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6" SCT Optical Tube Assembly (CG5)
$839.95
6-Inch Aperture
Exceptional light gathering capability
StarBright XLT
High transmission optical coatings
Schmidt-Cassegrain Design
Versatile 1500mm focal length
CG-5 Dovetail
Fits standard telescope mounts
Water White Glass
Maximizes sharpness and brightness
Portable Tube
Lightweight durable aluminum frame
Stargazing Powerhouse OpticsCompact Schmidt-Cassegrain Telescope Design
The Celestron C6-A Optical Tube Assembly delivers a premier balance of portability, easy handling, and impressive light-gathering power for amateur astronomers. Featuring a 1500mm focal length and patented StarBright XLT optical coatings, this 6-inch Schmidt-Cassegrain telescope offers breathtaking views of celestial bodies and terrestrial landscapes.
Advanced Celestial ClarityExplore Planets and Deep Space Objects
Engineered to deliver exceptional visual contrast and deep-space images, the Celestron C6-A OTA telescope gathers 40% more light than traditional 5-inch Cassegrain models. Equipped with Celestron's premier StarBright XLT coatings—consisting of enhanced multi-layer aluminum mirror coatings, magnesium fluoride, rare hafnium dioxide, and premium water white corrector glass—this telescope reaches an astounding 97.4% light transmission. Whether observing subtle lunar details, ring systems on Saturn, or faint galaxies, the Celestron C6-A provides crisp resolution across the visual spectrum. Its integrated CG-5 dovetail bar fits seamlessly onto computerized equatorial mounts or manual altazimuth tripods for quick daytime or night sky viewing setups.
Detailed SpecificationsComplete Telescope Optical Tube Specs
Optical Design
Schmidt-Cassegrain
Aperture
150mm (6") (eye)
Focal Length
1500mm (59") (ruler)
Focal Ratio
f/10
Optical Coatings
StarBright XLT
Optical Tube Material
Aluminum
Optical Tube Length
406mm (16") (ruler)
Optical Tube Diameter
180mm (7.12") (ruler)
Optical Tube Weight
10 lbs (4.54 kg) (weight)
Highest Useful Magnification
354x
Lowest Useful Magnification
21x
Limiting Stellar Magnitude
13.4
Resolution (Rayleigh)
0.93 arc seconds
Resolution (Dawes)
0.77 arc seconds
Light Gathering Power
459x compared to human eye
Secondary Mirror Obstruction
56mm (2.2") (circle)
Secondary Mirror Obstruction by Diameter
37%
Secondary Mirror Obstruction by Area
14%
Finderscope
6x30
Star Diagonal
1.25" Star Diagonal
Focal Length of Eyepiece 1
25mm (0.98") (zoom)
Magnification of Eyepiece 1
60x
Dovetail
CG-5 Dovetail bar
Performance HighlightsEngineered for Superior Optical Quality
Light Gathering Power6-inch aperture gathers 40% more light than 5-inch Cassegrain tubes
StarBright XLT SystemMulti-layer coatings optimize light transmission for high contrast visuals
Water White GlassHigh-transmission corrector lens provides 97.4% average light transmission
CG-5 Mounting CompatibilityEasily installs onto computerized or manual altazimuth mounts
Lightweight Aluminum ConstructionDurable 10 lb frame makes field setup and transport effortless
Included AccessoriesComplete with a 25mm eyepiece, 6x30 finderscope, and 1.25-inch star diagonal
Frequently Asked QuestionsEverything you need to know
What mount is compatible with the Celestron C6-A optical tube assembly?
The Celestron C6-A comes equipped with a CG-5 dovetail bar, making it directly compatible with popular computerized mounts and manual tripods using a CG-5 or Vixen-style saddle plate.
What accessories are included with the Celestron C6-A telescope tube?
The Celestron C6-A optical tube assembly includes a 25mm eyepiece offering 60x magnification, a 6x30 optical finderscope, a 1.25-inch star diagonal, and an integrated CG-5 dovetail bar.
How do StarBright XLT coatings benefit the Celestron C6-A?
Celestron C6-A StarBright XLT coatings utilize precise layers of aluminum, quartz, titanium dioxide, magnesium fluoride, hafnium dioxide, and water white glass to achieve a stellar 97.4% light transmission for brighter images and better contrast.
Can the Celestron C6-A telescope be used for daytime spotting?
Yes, when mounted on a sturdy manual altazimuth tripod, the Celestron C6-A functions exceptionally well as a high-magnification terrestrial spotting scope.