Sky-Watcher

10" Classic 250P Dobsonian


  • Sale
  • Regular price $610.00

Currently back-ordered, please contact us for estimated availability.

Shipping Charge Applies, or FREE Curbside Pickup.


  • 10” (254 mm) Dobsonian-style Newtonian
  • 1200 mm focal length (f/4.7)
  • 2” single-speed Crayford-style focuser with 1.25” adaptor
  • Super 25 & 10mm 1.25” eyepieces
  • 9×50 finderscope
  • Solid rocker-mount with Teflon bearings and tension clutch for altitude
  • Teflon bearing for azimuth

The Sky-Watcher Traditional Dobsonian Telescope 254mm/1200mm (10″) has a “paraboloidal” primary mirror to eliminate spherical aberration and a four-arm, secondary- mirror bracket with fine supports (0.5mm thick), to reduce diffraction spikes and light loss. In addition, this model include a 2″ focuser with a 1.25″ adapter, allowing the use of either eyepiece size. This model also include the new feature-tension control handle.

Optical Info
Optical Design Newtonian
Mirror Coatings 94% Aluminum
Glass Type Borosilicate
Primary Aperture (mm) 254
F/Ratio 4.7
Focal Length (mm) 1200
Secondary Diameter 64mm
Secondary Obstruction (by diameter) 25%
Secondary Obstruction by Area 6%
Observational Info
Dawes Limit 0.46
Rayleigh Limit 0.55
Limiting Mag. 14.5
Minimum Magnification 36
Maximum Magnification 500
Light Gathering (compared to next size down) 57%
General Info
Focuser 2" Crayford
OTA Length (Retract/Ext.) 45"
OTA Outer Diameter 11.375"
OTA Weight (with accessories) 28
Dob Base Weight 25
Dob Base Measurements 29"x20.5"
Zenith Eyepiece Height 48"
Accessories
Included Finder 9x50 Finder
Included Diagonal No
Included Eyepieces 25/10 Super (modified Kellner)
Magnification w/ Included Eyepieces 48x/120x
Included Case No
Corrector No
SKU: S11620
Barcode: 050234116206