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LX90:Your Personal Window to the Universe
The Meade LX90 is an extremely versatile, high-resolution telescopes with features similar to
those available only with larger and more specialized imaging systems. With pushbutton con-
trols, automatic tracking of celestial objects, and software downloading capability, the LX90 tel-
escope may be all the telescope ever required by many terrestrial and astronomical observers.
Your LX90 telescope reveals nature in an ever-expanding level of detail. Observe the feather
structure of an eagle from 50 yards or study the rings of the planet Saturn from a distance of
800 million miles. Focus beyond the Solar System and observe majestic nebulae, ancient star
clusters, remote galaxies, and even stars recently discovered to have planets orbiting about
them. Meade LX90 telescopes are instruments fully capable of growing with your interest and
are ideal for both the casual observer and serious astronomer alike.
Eyepiece - Place the Super Plössl 26mm eyepiece into the eyepiece holder or 90° diago-
nal prism (4, Fig. 1) and tighten in place with the thumbscrews. The eyepiece magnifies
the image collected in the optical tube.
Eyepiece Holder Thumbscrew - Tightens the eyepiece in place. Tighten to a firm feel
only.
Eyepiece Holder - Holds the eyepiece in place
Diagonal Prism - provides a more comfortable right angle viewing position. Slide the diag-
onal prism directly into the eyepiece holder (3, Fig. 1)
Optical Tube - The main optical component that gathers the light from distant objects and
brings this light to a focus for examination through the eyepiece.
Dec Lock - Controls the manual vertical movement of the telescope. Turning the Dec lock
counterclockwise unlocks the telescope enabling it to be freely rotated by hand about the
vertical axis. Turning the Dec lock clockwise (to a firm feel only) prevents the telescope
from being moved manually, but engages the vertical motor drive for Autostar operation.
NOTE: The Dec lock knob is a knurled knob located on the fork arm to the right of
the focus knob (8, Fig. 1).
CAUTION: When loosening the Dec lock, be sure to support the optical tube (5,
Fig. 1). The weight of the tube could cause the tube to swing through the fork arms
suddenly.
Fork Arms - Hold the optical tube in place.
Focus Knob -
Moves the telescope’s primary mirror in a finely-controlled motion
to achieve
precise image focus. The LX90 telescope can be focused on objects from a distance of
about 25 ft. to infinity. Rotate the focus knob counterclockwise to focus on distant objects,
and clockwise to focus on nearby objects.
R.A. Lock - Controls the manual horizontal rotation of the telescope. Turning the R.A. lock
counterclockwise unlocks the telescope, enabling it to be freely rotated by hand about the
horizontal axis. Turning the R.A. lock clockwise prevents the telescope from being rotated
manually, and engages the horizontal motor drive for Autostar operation.
Right Ascension (R.A.) Setting Circle - See "APPENDIX A," page 45, for detailed infor-
mation.
Declination (Dec) Setting Circle (on left fork arm) - See "APPENDIX A," page 45, for
detailed information.
Declination Pointer - Line up the desired Declination setting with this pointer.
CAUTION:
Using products other
than standard
Meade accessories
may cause damage
to the telescope’s
internal electronics
and may void the
Meade warranty.
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