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If you have a question concerning your
Telephone: (800)
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.
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 |
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 |
Eyepieces |
|
2x Flip Barlow | Built in |
Telescope mounting | Fork type; double tine |
Setting circle diameters | Dec: 3.5”; RA: 7” |
Input voltage | |
Motor Drive System | DC servo motors with encoders, both axes |
Electric, 9 speed, both axes | |
Hemispheres of operation | North and South, switchable |
Bearings: |
|
Altitude | Acetal |
Azimuth | Nylon |
Materials |
|
Tube body | ABS |
Mounting | |
Objective lens (crown, flint) | BK7, F2 |
Telescope dimensions | 40.4cm x 18cm x 22cm (15.9” x 7” x 9”) |
Prism | 45° roof |
Battery Life (approx.) with AutoStar | 20 hrs. |
Compass/Bubble Level included |
|
Processor | 68HC11, 8MHz |
Flash Memory | 512KB, reloadable |
Keypad | 10 key alphanumeric |
Display | 2 line, 16 character LCD |
Backlight | Red LED |
Coil Cord | 24" |
Length | 14.2cm (5.60") |
Width (LCD end) | 78.0cm (3.08") |
Width (Connector end) | 53.5cm (2.10") |
Depth | 23.5cm (0.93") |
AutoStar net weight | 0.169kg (0.35 lbs.) |
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