Meade ETX-90PE instruction manual Telescope dimensions 43cm x 25cm x 20cm 17” x 10” x 8”

SmartFinder. . . . . . . . . . . Red dot projected onto finder’s lens LNT Module . . . . . . High accuracy, temperature-compensated

. . . . . . . . . . . . . . . . . oscillator, updatable using Meade’s

. . . . . . . . . . . . . . . . . . . . . . . . optional ATUM accessory Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 volts DC Motor Drive System . . . DC servo motors with encoders, both axes Bearings:

Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ball bearings Azimuth . . . . PTFE thrust bearing and radial ball bearing

Materials:

Tube body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . aluminum Mounting . . . . . . ABS, with internal aluminum structure Primary mirror. . . . . . . . . . . . . . . . . . . . . . . . Pyrex® glass Correcting lens . . . . . . . . . . . BK7 optical glass, Grade-A

Telescope dimensions:

. . . . . . . . . . . . . 43cm x 25cm x 20cm (17” x 10” x 8”)

Telescope net weight:

(incl. AutoStar & batteries) . . . . . . . . . . . 6.1kg (13.5 lbs) Telescope shipping weight. . . . . . . . . . . . . . . . 8.3kg (18.4 lbs) Battery Life (approx.):

with AutoStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 hrs

Specifications: ETX-125PE Astro Telescope

Optical design . . . . . . . . . . . . . . . . . . . . Maksutov-Cassegrain Primary mirror diameter . . . . . . . . . . . . . . . . . . 138mm (5.43”) Clear aperture. . . . . . . . . . . . . . . . . . . . . . . . . . . 127mm (5.0”) Focal length . . . . . . . . . . . . . . . . . . . . . . . . . . 1900mm (74.8”) Focal ratio (photographic speed) . . . . . . . . . . . . . . . . . . . . f/15 Near focus (approx) . . . . . . . . . . . . . . . . . . . . . . . . 4.6m (15 ft) Resolving power . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9 arc secs Super multi-coatings (EMC) . . . . . . . . . . . . . . . . . . . . standard Limiting visual stellar magnitude (approx.) . . . . . . . . . . . . 12.5 Image scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.76°/inch Maximum practical visual power . . . . . . . . . . . . . . . . . . . 500X Optical tube dimensions

(dia. x length) . . . . . . . . . . 14.6cm x 36cm (5.75” x 14.2”) SmartFinder . . . . . . . . . . . . . . . . . . . . . . 8 x 25mm right-angle Secondary mirror obstruction (dia.; %) . . 39.4mm (1.6”); 9.6% Telescope mounting . . . . . . . . . . . . . . . . fork type; double tine Setting circle diameters. . . . . . . . . . . . . . . . Dec.: 4.3”; R.A.: 9” SmartFinder. . . . . . . . . . . Red dot projected onto finder’s lens LNT Module . . . . . . High accuracy, temperature-compensated

. . . . . . . . . . . . . . . . . oscillator, updatable using Meade’s

. . . . . . . . . . . . . . . . . . . . . . . . optional ATUM accessory Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 volts DC Motor Drive System . . . DC servo motors with encoders, both axes Bearings:

Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ball bearings Azimuth . . . . . . . . . . . . . . . . . . . . . . . . . . . . ball bearings

Materials:

Tube body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . aluminum Mounting . . . . . . . ABS, with internal aluminum structure Primary mirror. . . . . . . . . . . . . . . . . . . . . . . . Pyrex® glass Correcting lens . . . . . . . . . . . BK7 optical glass, Grade-A

Telescope dimensions:

. . . . . . . . . . 48cm x 23cm x 27cm (19” x 8.9” x 10.8”)

Telescope net weight:

(incl. AutoStar & batteries) . . . . . . . . . . . 6.9kg (15.2 lbs) Telescope shipping weight. . . . . . . . . . . . . . . 11.4kg (25.2 lbs) Battery Life (approx.):

48

with AutoStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 hrs