Jule’s Scope Specs

Eyepieces Focal Lengh = 1900mm / Aperture in inches  = 5 / fRation = 15
All Meade Super Plossol
Focal Ln mm Apparent FOV  ̊ Exit Pupil mm Power X True FOV  ̊ B-Low X2
40 50 2.7 47 1.1 94
32 82 2.2 59 1.4 118
26 50 1.7 73 0.7 146
15 82 1.0 126 0.7 252
12.4 100 0.8 153 0.7 306
9.7 68 0.7 195 0.3 390
9 68 0.6 211 0.3 422
6 0.4 296 592
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
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.):
with AutoStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 hrs
49
AutoStar Specifications
Processor ………………………………………………………………….68HC11, 8MHz
Flash Memory ……………………………………………………1MB, reloadable
Keypad ………………………………………………………………20 key alphanumeric
Display ………………………………………………………………2 line, 16 character LCD
Backlight…………………………………………………………….Red LED
Utility Light …………………………………………………………Yes
RS-232 ………………………………………………………………Yes
Coil Cord …………………………………………………………..24″
Database …………………………………………………………..30,223 objects
AutoStar Dimensions
Length ………………………………………………………………6.56″ (16.6cm)
Width (LCD end) ………………………………………………..3.19″ (80cm)
Width (Connector end)…………………………………………2.25″ (57cm)
Depth ………………………………………………………………..0.81″ (21cm)
AutoStar net weight …………………………………………….1.12 lbs (0.51kg)
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