My Setup

 

The Skyshed is equipped with

LX200 10" GPS UHTC

10" f/10 LX200GPS Specifications:


Optical design .............................................. ...........Schmidt-Cassegrain
Clear aperture...........................................................254mm (10")
Focal length .............................................................2500mm
Focal ratio (photographic speed) ..............................f/10
Resolving power ......................................................0.45 arc sec
Coatings ..................................................................Meade EMC Super Multi-Coatings
Mounting ................................................................Cast-aluminum, double-tine forks
Gears ......................................................................5.75"-dia. worm gears, both axes
Periodic Error Correction ........................................Both axes
Alignment ................................................................Altazimuth or equatorial w/optional wedge
Pointing Precision ....................................................2 arc-minutes in GO TO mode
Slew Speeds............................................................1x sidereal to 8°/sec in 9 increments
Power .....................................................................8 C-cell (user-supplied) batteries
or optional 12v power supply
Tripod .....................................................................Variable-height field tripod
Accessories ..............................................................8 x 50mm viewfinder
4-speed zero image-shift microfocuser
16-channel GPS receiver
True-level electronic sensor
Net telescope weight ................................................62 lbs.
Net tripod weight......................................................20 lbs.

 

and the ETX 125 AT UHTC, a great little telescope.

Specification:

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 (UHTC) . . . . . . . . . . . . . . . . . Ultra High Transmission Coating
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”)
Viewfinder. . . . . . . . . . . . . . . . . . . . . . . . .................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”
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)
Battery Life (approx.):
with Autostar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 hrs

 

The ETX is powered by Autostar:

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)

 

The Famous "SuperCharge"

Supercharging your ETX and informative View

Jerry Swansons Very informative ETX Site

Cloudy Nights Telescope Review of the ETX 125

Jordan Blessing's ETX Tuneup

R. B. Ingersoll, M.D's ETX TechTip

Website Name and Design Lee Harris 2003 - 2007 ©