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IN 186 Rev. B 02/09

Providing Exceptional Consumer Optical Products Since 1975

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inStruCtiOn MAnuAl

Orion SpaceProbe

  

130mm EQ 

#9851  Equatorial Newtonian Reflector Telescope

Summary of Contents for SPACEPROBE 130mm EQ

Page 1: ...mer Optical Products Since 1975 Customer Support 800 676 1343 E mail support telescope com Corporate Offices 831 763 7000 89 Hangar Way Watsonville CA 95076 instruction Manual Orion SpaceProbe 130mm EQ 9851 Equatorial Newtonian Reflector Telescope ...

Page 2: ... Tube mounting rings Tube ring clamps Primary mirror cell Collimation screws 6 R A setting circle Latitude adjustment T bolt Azimuth lock knob Leg lock knob Accessory tray Accessory tray bracket Eyepiece Focuser Dec slow motion control cable Dec setting circle R A lock knob Counterweight Counterweight lock knob Counterweight shaft R A slow motion control cable ...

Page 3: ... screws should be tightened securely to eliminate flexing and wobbling but be careful not to over tighten or the threads may strip Refer to Figure 1 during the assembly process During assembly and anytime for that matter Do not touch the surfaces of the telescope mirrors or the lenses of the finder scopes or eyepieces with your fingers The optical sur Congratulations on your purchase of a quality ...

Page 4: ... latitude lock T bolt is pointing to the mark at 40 To do this loosen the latitude lock T bolt and turn the latitude adjustment T bolt until the pointer and the 40 line up Then retighten the latitude lock T bolt The declination Dec and right ascension R A axes may need re positioning rotation as well Be sure to loosen the RA and Dec lock knobs before doing this Retighten the R A and Dec lock knobs...

Page 5: ... To place the finder scope in the finder scope bracket first unthread the two black nylon screws until the screw ends are flush with the inside diameter of the bracket Place the O ring that comes on the base of the bracket over the body of the finder scope until it seats into the slot on the middle of the finder scope Slide the eyepiece end nar row end of the finder scope into the end of the brack...

Page 6: ...g When you are actually observing with the tele scope you can adjust the eyepiece position by loosening the tube rings and rotating the optical tube 7 Retighten the tube ring clamps The telescope is now balanced on both axes Now when you loosen the lock knob on one or both axes and manually point the telescope it should move without resistance and should not drift from where you point it Focusing ...

Page 7: ...y adjustments until the two images match up NOTE The image in both the finder scope and the main telescope will appear upside down rotated 180 This is normal for finder scopes and reflector telescopes see Figure 5 The finder scope alignment needs to be checked before every observing session This can easily be done at night before viewing through the telescope Choose any bright star or planet cente...

Page 8: ...of the telescope s position to center objects within the field of view Before you can use the cables you must manually slew the mount to point the telescope in the vicinity of the desired target Do this by loosening the R A and Dec lock knobs and moving the telescope about the mount s R A and Dec axes Once the telescope is pointed somewhere close to the object to be viewed retighten the mount s R ...

Page 9: ... object Retighten the thumb screw Finding Objects With the Setting Circles Now that both setting circles are calibrated look up in a star atlas the coordinates of an object you wish to view 1 Loosen the Dec lock knob and rotate the telescope until the Dec value from the star atlas matches the reading on the Dec setting circle Retighten the Dec lock knob 2 Loosen the R A lock knob and rotate the te...

Page 10: ... other collimating devices such as Orion s LaserMate Laser Collimator obviating the need to remove the primary mirror and mark it yourself NOTE The center ring sticker need not ever be removed from the primary mirror Because it lies directly in the shadow of the secondary mirror its presence in no way adversely affects the optical performance of the telescope or the image quality That might seem c...

Page 11: ... one of the pairs of Phillips headed collimation screws one turn Look into the focuser and see if the secondary mirror reflection has moved closer to the center of the primary mirror reflection Repeat this process on the other two pairs of collimation screws if nec essary It will take a little trial and error to get a feel for how to tilt the mirror in this way to center the reflection Look into t...

Page 12: ...ing and Transparency Atmospheric conditions play a huge part in quality of view ing In conditions of good seeing star twinkling is minimal and objects appear steady in the eyepiece Seeing is best overhead worst at the horizon Also seeing generally gets better after midnight when much of the heat absorbed by the Earth during the day has radiated off into space Typically seeing conditions will be be...

Page 13: ...a magnifica tion of 36x and a 10mm which gives a magnification of 90x Other eyepieces can be used to achieve higher or lower powers It is quite common for an observer to own five or more eyepieces to access a wide range of magnifications This allows the observer to choose the best eyepiece to use depending on the object being viewed At least to begin with the two supplied eyepieces will suffice ni...

Page 14: ...ally Venus appears as a thin crescent not a full disk when at its peak brightness Because it is so close to the Sun it never wanders too far from the morning or evening horizon No surface markings can be seen on Venus which is always shrouded in dense clouds MARS The Red Planet makes its closest approach to Earth every two years During close approaches you ll see a red disk and may be able to see ...

Page 15: ...ar 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 such as Windex or Formula 409 Cleaning Lenses Any quality optical lens cleaning tissue and optical lens clean ing fluid specifically designed for multi coated optics can be used to clean the exposed lenses of...

Page 16: ...n 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...

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