Orion SPACEPROBE 130ST EQ User Manual download pdf (Page 15)

telescope outdoors, although storage in a garage or shed is

OK. Small components like eyepieces and other accessories

should be kept in a protective box or storage case. Keep the

caps on the front of the telescope and on the focuser draw-

tube when it is not in use.

Your SpaceProbe 130ST EQ telescope requires very little

mechanical maintenance. The optical tube is steel and has

a smooth painted finish that is fairly scratch-resistant. If a

scratch does appear on the tube, it will not harm the tele-

scope. If you wish, you may apply some auto touch-up paint

to the scratch. Smudges on the tube can be wiped off with a

soft cloth and a household cleaner.

Cleaning Lenses

Any quality optical lens cleaning tissue and optical lens

cleaning fluid specifically designed for multi-coated optics

can be used to clean the exposed lenses of your eyepieces

or finder scope. Never use regular glass cleaner or cleaning

fluid designed for eyeglasses. Before cleaning with fluid and

tissue, however, blow any loose particles off the lens with a

blower bulb or compressed air. Then apply some cleaning

fluid to a tissue, never directly on the optics. Wipe the lens

gently in a circular motion, then remove any excess fluid with

a fresh lens tissue. Oily fingerprints and smudges may be

removed using this method. Use caution; rubbing too hard

may scratch the lens. On larger lenses, clean only a small

area at a time, using a fresh lens tissue on each area. Never

reuse tissues.

Cleaning Mirrors

You should not have to clean your telescope’s mirrors very

often; normally once every year or so. Covering your tele-

scope when it is not in use will prevent dust from accumu-

lating on the mirrors. Improper cleaning can scratch mirror

coatings, so the fewer times you have to clean the mirrors,

the better. Small specks of dust or flecks of paint have virtu-

ally no effect on the visual performance of the telescope.

The large primary mirror and the elliptical secondary mirror

of your telescope are front-surface aluminized and over-coat-

ed with hard silicon dioxide, which prevents the aluminum

from oxidizing. These coatings normally last through many,

many years of use before requiring re-coating (which is eas-

ily done).

To clean the secondary mirror, remove the mirror in its holder

from the 4-vaned spider in the tube. Do this by grasping the

secondary mirror holder with your fingertips while turning

the central bolt on the spider’s central hub counterclockwise.

Handle the mirror holder only; do not touch the mirror sur-

face. Then follow the same procedure described below for

cleaning the primary mirror. The secondary mirror is glued

into its holder, and should not be removed from the holder for

cleaning.

To clean the primary mirror, carefully remove the mirror cell

from the telescope. Do this by first removing the four screws

that connect the mirror cell to the tube. These screws are

located on the outside of the tube, just above the mirror cell

casting. Next, remove the primary mirror from the mirror

cell; you will need to remove the three mirror clips to do this.

Completely unthread the two Phillips head screws on each

clip, and carefully lift the mirror from its cell. Be careful not to

touch the front surface of the mirror with your fingers. Set the

mirror with the aluminized face up on a clean, soft towel. Fill

a clean sink, free of abrasive cleanser, with room-tempera-

ture water, a few drops of liquid dishwashing detergent, and

if possible, a cap-full of rubbing alcohol. Submerge the mirror

(aluminized face up) in the water and let it soak for several

minutes (or hours if it’s a very dirty mirror). Wipe the mirror

under water with clean cotton balls, using extremely light

pressure and stroking in straight lines across the surface.

Use one ball for each wipe across the mirror. Then rinse the

mirror under a stream of lukewarm water. Any particles on

the surface can be swabbed gently with a series of clean cot-

ton balls, each used just one time. Dry the mirror in a stream

of air (a “blower bulb” works great), or remove any stray

drops of water with the corner of a paper towel. Water will

run off a clean surface. Cover the mirror surface with tissue,

and leave the entire assembly in a warm area until it is com-

pletely dry before reassembling the telescope.

9. Specifications

Optical tube: Steel

Primary mirror diameter: 130mm

Primary mirror coating: Aluminum with silicon dioxide (SiO

)

overcoat

Primary mirror figure: Parabolic

Secondary mirror minor axis: 37mm

Focal length: 650mm

Focal ratio: f/5

Focuser: Rack and pinion, accepts 1.25” eyepieces

Eyepieces: 25mm and 10mm Sirius Plössl, fully coated with

multi-coatings, 1.25"

Magnification: 26x (with 25mm), 65x (with 10mm)

Finder scope: 6x magnification, 30mm aperture, achromatic,

crosshairs

Mount: German-type equatorial

Tripod: Aluminum

Motor drives: Optional

Weight: 28.4lbs. (tube 6.9lbs., mount 21.5lbs.)

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