Skywatcher Dobson N 254/1200 Pyrex Skyliner Classic DOB

Description

Corning Pyrex low-expansion borosilicate optical glass powers the Skywatcher Dobson N 254/1200 Pyrex Skyliner Classic DOB 10-inch parabolic Newtonian reflector telescope system. Designed with an f/4.7 focal ratio, this 254mm (10.00 in) aperture telescope features a 1200mm focal length, delivering 0.46 arcseconds Dawes resolving power and reaching magnitude 14.7 for high-resolution visual deep-sky exploration.

The Skywatcher Dobson N 254/1200 Pyrex Skyliner Classic DOB utilizes a 10-inch parabolic primary mirror crafted from authentic Corning Pyrex glass, coated with 94% reflective aluminum and silicon dioxide (SiO2). Its 1150mm solid metal tube features a 2-inch dual-fit Crayford focuser with a 1.25-inch adapter and a small 22.8% secondary obstruction. Resting on a wooden rocker box with PTFE bearings and tension control handles, the 12.50 kg (27.56 lbs) OTA delivers thermal-stable visual astronomy.

Key Features of Skywatcher Dobson N 254/1200 Pyrex Skyliner Classic DOB

Built for thermal-stable deep-sky astronomy and faint galaxy exploration, this 10-inch Sky-Watcher Pyrex Skyliner Dobsonian pairs low-expansion Corning Pyrex optics with a floor-standing rocker box. Its 2-inch Crayford focuser and patented tension control handles provide smooth manual tracking across high-power planetary targets.

• 254mm (10.00 in) aperture with 1200mm focal length and fast f/4.7 optical speed
• Precision parabolic primary mirror made from Corning Pyrex low-expansion glass
• 94% reflective aluminum optical coatings with protective silicon dioxide overcoat
• Small 22.8% secondary obstruction by diameter (58mm minor axis, 5.2% by area)
• 2-inch dual-fit Crayford focuser with step-down 1.25-inch reduction adapter
• Floor-standing manual wooden Dobsonian base with smooth PTFE bearings
• Side altitude bearings with patented manual tension control handles
• High-aperture 9×50 optical finderscope and Super 25mm and 10mm eyepieces included

10-Inch Corning Pyrex Parabolic Optics & Thermal Stability

The 254mm Corning Pyrex parabolic primary mirror minimizes thermal expansion distortion under falling night temperatures, holding sharp focus on faint galactic structures and planetary disks. Supported by a 2-inch Crayford focuser, this large-aperture Dobsonian supports visual magnifications from 36.3x up to 508x.

Floor-Standing Rocker Box & Tension Control Handles

Smooth manual nudging is critical when tracking deep-sky objects at high magnification. The Pyrex Skyliner 250P features a ground rocker base equipped with Teflon pads and an azimuth roller track for fluid rotation. Its patented side tension control handles allow observers to adjust altitude friction, preventing tube drift.

• Floor-standing wooden Dobsonian base with smooth PTFE altitude and azimuth bearings
• Patented side tension control handles for customizable altitude friction adjustments
• High-aperture 9×50 optical finderscope paired with Super 25mm and 10mm eyepieces

Sky-Watcher Skyliner Pyrex Series Warranty

The Skywatcher Dobson N 254/1200 Pyrex Skyliner Classic DOB is backed by a 2-year limited warranty against material and manufacturing defects. The complete factory package contains the 254mm Pyrex solid tube OTA, ground Dobsonian base with tension control, 9×50 optical finderscope, 2-inch to 1.25-inch adapter, and Super 25mm and 10mm eyepieces.