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)