Large Telescopes >6" to 12"

The Explore Scientific Generation II 10-inch Truss Tube Dobsonian delivers impressive light-gathering power in a portable, tool-free design that breaks down easily for transport. With a precision 2-inch dual-speed focuser, oversized bearings for smooth tracking, and innovative tool-free collimation, this telescope is ideal for intermediate astronomers eager to explore deep sky objects, resolve star clusters, and reveal spiral galaxy structure in stunning detail.

• 8" Schmidt-Cassegrain optical tube assembly (OTA)
• Features Celestron's premium patented StarBright XLT optical coatings
• 2032 mm focal length (f/10)
• Fastar compatible
• Tube constructed of durable and lightweight aluminum
• Includes: 25mm eyepiece (81x), 6x30 optical finderscope, star diagonal, 1.25” visual back, CGEM style dovetail bar

NOTE: The recommended solar filter for this scope for solar observing is the Astrozap Glass Solar Filter (Product No. 124451) 

Excellent set up for astro imaging, or impressive visual observing. 

• Flat field free of optical aberrations like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor.
• Unlike the larger RASAs that work with DSLR and large CCD cameras, the 8” model was designed with color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras in mind. The telescope does not work with standard DSLR cameras.
• NEW Ultra-Stable Focus System – six precision sealed ball bearings virtually eliminate image shift.
• Integrated air cooling system –12V DC MagLev fan reduces cooldown time and provides optimal air flow while filtering out dust.
• Internal filter mount – seamlessly accommodates a Light Pollution Imaging Filter into the optical path.
• CGE dovetail mounting rail.
• Performs over a wider spectral range than most telescopes, from 390-800 nm, so more of the light passing through the astrograph is in sharp focus.

9.25" Schmidt-Cassegrain Optical Tube Assembley

Aluminum Optical Tube

Celestron's premium StarBright XLT coatings

2350 mm focal length (f/10)

25 mm eyepiece included (94x)

Visual back allows for use with 1.25" accessories

6x30 finderscope to help accurately find objects

Star diagonal provides more comfortable viewing position when observing objects that are high in the sky

Includes dovetail rail compatible with CGE mount

For customers wishing to fit solar filters, the outside OTA diameter is 272 mm.

NOTE: For solar viewing the Astrozap Glass Solar filter (Product No. 124446) is recommended.

• 8” (203.2 mm) f/10 Schmidt-Cassegrain includes StarBright XLT coatings for better light transmission
• 84% more light gathering than a 6” telescope.
• 6x30 optical finderscope for locating alignment stars
• Integer gear ratios and permanently programmable Periodic Error Correction eliminates recurring track errors from the worm gear.
• Autoguider port for long exposure imaging
• New motors offer improved tracking performance & provide more power to overcome load imbalances
• Updated industrial design offers more rigidity, less flexure and improved aesthetics
• New design allows viewing or imaging across the meridian without interference from the motors housings
• Improved latitude range.  Can be used between 7 – 77° latitude.
• NexStar+ hand control offers multiple language programming (English, French, Italian, German, Spanish)

• Experience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces.
• Aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging.
• Versatile design accommodates 3 focal ratios: native f/10, f/7 with the addition of a focal reducer, or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories.
• Celestron’s premium StarBright XLT coatings provide maximum light transmission.
• A 9x50 finderscope, 1.25” mirror diagonal for more comfortable viewing, and 40 mm Plössl 1.25” eyepiece are all included.

NOTE: The recommended solar filter for this scope for solar observing is the Astrozap Glass Solar Filter (Product No. 124451) 

The Celestron C8 8-Inch Optical Tube Assembly delivers powerful, high-contrast views with a 2032mm focal length and premium StarBright XLT coatings, making it ideal for planetary observation and deep-sky exploration. Complete with a 25mm eyepiece, 6x30 finderscope, star diagonal, and a CG-5-compatible dovetail rail, this versatile Schmidt-Cassegrain OTA is ready to pair with your mount right out of the box.