Orion 9851 Specifications, Orion Telescopes & Binoculars, Hangar Way, Watsonville, CA

Figure 15.

Remove the three collimation screws indicated to remove the mirror cell from the tube.

Then follow the same procedure described below for cleaning the primary mirror. The secondary mirror is glued into its hold- er, and should not be removed from the holder for cleaning.

To clean the primary mirror, carefully remove the mirror cell from the telescope. This is done by first removing the three primary mirror collimation screws indicated in Figure 15. 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 in each clip, and care- fully lift the mirror from its cell. Be careful not to touch the front surface of the mirror with your fingers! Set the mirror on a clean, soft towel. Fill a clean sink, free of abrasive cleanser, with room-temperature water, a few drops of liquid dishwash- ing 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 cotton 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 Kleenex, and leave the entire assembly in a warm area until it is completely dry before reassembling the telescope.

9. Specifications

Optical tube: Steel

Primary mirror diameter: 130mm

Primary mirror coating: Aluminized, silicon dioxide overcoat

Secondary mirror minor axis: 34mm

Focal length: 900mm

Focal ratio: f/7

Eyepieces: 25mm and 10mm Explorer II, fully coated, 1.25”

Magnification: 36x (with 25mm), 90x (with 10mm)

Focuser: Rack and pinion

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

Mount: EQ-2 German-type equatorial

Tripod: Aluminum

Motor drives: Optional

One-Year Limited Warranty

This Orion SpaceProbe 130mm Equatorial Reflector is warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instrument that proves to be defective, provided it is returned postage paid to: Orion Warranty Repair, 89 Hangar Way, Watsonville, CA 95076. If ‑the product is not registered, proof of purchase (such as a copy of the original invoice) is required.

This warranty does not apply if, in Orion’s judgment, the instrument has been abused, mishandled, or modified, nor does it apply to normal wear and tear. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. For further warranty service information, contact: Customer Service Department, Orion Telescopes & Binoculars, 89 Hangar Way, Watsonville, CA 95076; (800) 676-1343.

Orion Telescopes & Binoculars

89 Hangar Way, Watsonville, CA 95076

Customer Support Help Line (800) 676-1343 • Day or Evening

16