Specifications – Celestron StarSense Explorer 12" f/4.9 Dobsonian Telescope User Manual
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#22470 StarSense Explorer 8” Dobsonian
Optical Design
Newtonian reflector
Aperture
8” (203mm)
Focal Length
1200mm
Focal Ratio
F/5.9
Optical Coatings
XLT reflective coatings with silicon dioxide and tantalum pentoxide protective
overcoatings for primary and secondary mirrors
Mirror Material
Pyrex equivalent for primary and secondary mirrors
Primary mirror thickness
25mm (approx. 1:8 thickness ratio)
Secondary mirror thickness
8.5mm
Minor axis of secondary mirror
47mm
Tube material
Steel
Focuser
2” Crayford, includes 2” extension tube and 2”-to-1.25” adapter
Eyepiece / Magnification
25mm Plössl, 48x
Finderscope
StarPointer red-dot finderscope
Other Accessories
StarSense Explorer dock, eyepiece rack, collimation cap,
carry handles for OTA and base, pointing knob, dust covers
Tripod
Altazimuth Dobsonian base, adjustable altitude tensioning
Optical Tube Dimensions
44” x 9.5” diameter
Optical Tube Weight
20.6 lbs.
Base dimensions
27” x 19” x 19”
Base weight
22.8 lbs.
Total Telescope Kit Weight
43.4 lbs.
SPECIFICATIONS