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Dobsonian
Skywatcher
Classic Dobsonian
Sky-Watcher Classic 250P
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Sky-Watcher Classic 250P
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5
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Your Price:
$840.00
Sky-Watcher Classic 250P
Part Number:
S11620
Availability:
Out of Stock
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Description
Customer Reviews
Specifications
The Sky-Watcher Classic 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.
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Average Customer Ratings
5.0
SW classic 250
A beautiful tool, simple and nicely made. This being my first 10"dob. I was surprised how big it is (assembled it takes up about a 21" x 55" corner of our home right now). The finder scope impressed me as well. Happy with my purchase!
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Reviewed by:
Benjamin
from Ontario on 2/12/2021
5
SKU
S11620
UPC
050234116206
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
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