47
7" f/15 LX200GPS Specifications
Optical design..............................................Maksutov-Cassegrain
Clear aperture..............................................178mm (7")
Focal length ................................................2670mm
Focal ratio (photographic speed) ................f/15
Resolving power..........................................0.64 arc sec
Coatings ......................................................Meade EMC Super Multi-Coatings
Mounting......................................................Cast-aluminum, double-tine forks
Gears ..........................................................5.75"-dia worm gears, both axes
Alignment ....................................................Altazimuth or equatorial w/optional wedge
Pointing Precision ......................................2 arc-minutes in GO TO mode
Power ..........................................................8 C-cell (user-supplied) batteries
or optional 12v power supply
Slew Speeds................................................1x sidereal to 8°/sec in 9 increments
Tripod ..........................................................Variable-height field tripod
Accessories ................................................8 x 50mm viewfinder
1.25" diagonal prism
Super Plössl 26mm eyepiece
4-speed zero image-shift microfocuser
16-channel GPS receiver
True-level electronic sensor
Net telescope weight ..................................53 lbs.
Net tripod weight..........................................
20 lbs.
Maksutov Fan
The Maksutov optics are equipped with a fan which will assist in the stabilization of
the temperature of these optics. The fan operates when a special power cord (sup-
plied in the accessory box) is plugged into the12v DC OUT (13E, Fig. 1) and the
RS232 port (13G, Fig. 1) of the computer control panel with the power switch in the
“ON” position. The amount of time required to stabilize the temperature will be
dependent upon ambient conditions including the observation site and preexisting
condition of the telescope. The fan should be activated at the beginning of the obser-
vation session to accelerate the temperature stabilization. As soon as the optics have
reached an equilibrium with the environment the fan should be turned off by unplug-
ging the fan power cord. Fan operation time should range between 5 and 25 minutes.
While it is permissible to run the fan continuously it is not recommended because the
very slight vibration of the fan may cause noticeable movement of the objects
observed in the sensitive optics.
SPECIFICATIONS
