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Not Returnable
Please note that this product is not returnable.
This is a SW collapsible dobsonian in excellent condition. The optics are clean and clear, and the body is unmarked. The previous owner said that they only used this a couple of times, and it shows. This includes the following:
- 8″ (203 mm) Dobsonian-style Newtonian
- 1200 mm focal length (f/6)
- 2″ Crayford-style focuser with 1.25″ adaptor
- 4-element Plössl 25 mm 1.25″ eyepiece
- 8×50 right angle erect-image finderscope
- Solid rockermount with Teflon bearings and tension clutch for altitude
- Teflon bearing for azimuth
- Eyepiece height at zenith: 45.5”
Specifications
Optical Design |
Dobsonian |
---|---|
Primary Aperture (mm) |
203mm (8″) |
Focal Ratio |
5.9 |
Focal Length (mm) |
1200 mm |
Secondary Diameter (mm) |
48mm |
Secondary Obstruction by Area |
6% |
Mirror Coatings |
94% Aluminum |
Glass Type |
Borosilicate |
Included Finder |
8×50 Right Angle Correct Image |
Included Eyepieces |
25mm 1.25″ Super Plossl |
Magnification with Included Eyepieces |
48x (25mm) |
Other Included Items |
1.25″ and 2″ eyepiece adapters |
Focuser |
2″ Crayford |
GoTo |
No |
OTA Weight (with accessories) |
24.2 lbs |
OTA Length |
Retracted: 33″ Extended: 44″ |
Zenith Eyepiece Height |
44.5″ |
OTA Outer Diameter |
9.375″ |
Dobsonian Base Weight |
26 lbs |
Base Size |
Height: 29.5″ |
Dawes Limit |
0.57 |
Rayleigh Limit |
0.69 |
Limiting Magnitude |
14 |
Light Gathering (compared to next size down) |
78% (compared to 6″) |
Minimum Magnification |
29x |
Maximum Magnification |
400x |