Specifications – Celestron StarSense Explorer 12" f/4.9 Dobsonian Telescope User Manual
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#22472 StarSense Explorer 12” Dobsonian
Optical Design
Newtonian reflector
Aperture
12” (305mm)
Focal Length
1500mm
Focal Ratio
F/4.9
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
37mm (approx. 1:8 thickness ratio)
Secondary mirror thickness
11mm
Minor axis of secondary mirror
70mm
Tube material
Steel
Focuser
2” Crayford, includes 2” extension tube and 2”-to-1.25” adapter
Eyepiece / Magnification
32mm Omni Plössl, 47x
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
56” x 14” diameter
Optical Tube Weight
49.8 lbs.
Base dimensions
25” x 25” x 29”
Base weight
33.8 lbs.
Total Telescope Kit Weight
83.6 lbs.
SPECIFICATIONS