Specifications - Meade ETX-80AT-BB Instruction Manual

Meade Customer Service
If you have a question concerning your ETX-80AT-BB, contact the Meade Instruments Customer
Service Department at:
Telephone: (800) 626-3233
Customer Service hours are 8:00 AM to 5:00 PM, Pacific Time, Monday through Friday. In the
unlikely event that the ETX requires factory servicing or repairs, write or call the Meade Customer
Service Department first, before returning the telescope to the factory, giving full particulars as to
the nature of the problem, as well as your name, address, and daytime telephone number. The
great majority of servicing issues can be resolved by telephone, avoiding return of the telescope
to the factory.
ETX-80AT-BB Specifications
Optical design ................................................................Achromatic Refractor
Clear aperture ..........................................................80mm (2.76")
Focal length ....................................................................400mm
Focal ratio (photographic speed)....................................f/4.4
Near focus (approx.) ......................................................17 ft. (5.2m)
Resolving power ............................................................1.6 arc secs
Multi-coatings on objective lens ....................................Standard
Limiting visual stellar magnitude (approx.) ....................11.5
Image scale ....................................................................4.1°/inch
Maximum practical visual power ....................................240X
Optical tube dimensions
(dia. x length) ..........................................................9.3cm x 30.4-37.1cm (3.6" x 12-14.6")
Eyepieces
2x Flip Barlow ................................................................Built in
Telescope mounting........................................................Fork type; double tine
Setting circle diameters ..........................................Dec: 3.5"; RA: 7"
Input voltage ..........................................................9-volts DC
Motor Drive System ................................................DC servo motors with encoders, both axes
Slow-Motion Controls ....................................................Electric, 9 speed, both axes
Hemispheres of operation ..............................................North and South, switchable
Bearings:
Altitude ....................................................................Acetal
Azimuth ..................................................................Nylon
Materials
Tube body ..............................................................ABS
Mounting ................................................................High-impact ABS
Objective lens (crown, flint) ....................................BK7, F2
Telescope dimensions ....................................................40.4cm x 18cm x 22cm (15.9" x 7" x 9")
Prism ..............................................................................45° roof
Tripod..............................................................................Photo style
Battery Life (approx.)
with AutoStar ..........................................................20 hrs.
Compass/Bubble Level included
36