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12. Specifications

SkyQuest XX12g GoTo

Primary mirror: 305mm diameter, parabolic, center-marked

Focal length: 1500mm

Focal ratio: f/4.9

Focuser: Dual-speed Crayford (11:1), accepts 2" and 1.25"
eyepieces with included adapter

Optical tube material: Rolled steel

Azimuth bearing: Thrust needle bearing

Altitude bearing: Ball bearing

Eyepieces: 35mm DeepView, 2" barrel; 12.5mm Illuminated Plössl,
1.25" barrel

Eyepiece magnifications: 43x and 120x

Finder scope: EZ Finder II Reflex Sight

Eyepiece rack: Holds three 1.25" eyepieces and one 2" eyepiece

Mirror coatings: Enhanced aluminum (94% reflectivity) with SiO

overcoat

Minor axis of secondary mirror: 70mm

Optical tube weight: 47 lbs.

Base weight: 71 lbs.

Tube length: 58.3”

Operation: Northern or Southern hemisphere

Power requirement: 12V DC 2.1 Amp (tip positive)

Motor type: DC servo with optical encoders for altitude and azimuth
axes

Slew speeds:
Rate 0 = 1.0X
Rate 1 = 2X
Rate 2 = 16X
Rate 3 = 32X
Rate 4 = 50X
Rate 5 = 200X
Rate 6 = 400X
Rate 7 = 600X
Rate 8 = 800X
Rate 9 = 1000X

Tracking rates: Sidereal (default), Lunar, Solar.

Alignment method: Brightest Star, Two Star

Database: Over 42,900 objects including:
Complete Messier & Caldwell catalogs, 7840 NGC objects, 5386
IC objects, 29523 SAO stars, 8 planets, moon, 212 named stars,
55 well-known double stars, 20 well-known variable stars, 25 user-
defined objects.

SkyQuest XX14g GoTo

Primary mirror: 356mm diameter, parabolic, center-marked

Focal length: 1650mm

Focal ratio: f/4.6

Focuser: Dual-speed Crayford (11:1), accepts 2" and 1.25"
eyepieces with included adapter

Optical tube material: Rolled steel

Azimuth bearing: Thrust needle bearing

Altitude bearing: Ball bearing

Eyepieces: 35mm DeepView, 2" barrel; 12.5mm Illuminated Plössl,
1.25" barrel

Eyepiece magnifications: 47x and 132x

Finder scope: EZ Finder II Reflex Sight

Eyepiece rack: Holds three 1.25" eyepieces and one 2" eyepiece

Mirror coatings: Enhanced aluminum (94% reflectivity) with SiO

overcoat

Minor axis of secondary mirror: 80mm

Optical tube weight: 64 lbs.

Base weight: 76 lbs.

Tube length: 61”

Operation: Northern or Southern hemisphere

Power requirement: 12V DC 2.1 Amp (tip positive)

Motor type: DC servo with optical encoders for altitude and azimuth
axes

Slew speeds:
Rate 0 = 1.0X
Rate 1 = 2X
Rate 2 = 16X
Rate 3 = 32X
Rate 4 = 50X
Rate 5 = 200X
Rate 6 = 400X
Rate 7 = 600X
Rate 8 = 800X
Rate 9 = 1000X

Tracking rates: Sidereal (default), Lunar, Solar.

Alignment method: Brightest Star, Two Star

Содержание SkyQuest XX12g

Страница 1: ...ail support telescope com Corporate Offices 831 763 7000 89 Hangar Way Watsonville CA 95076 2010 2012 Orion Telescopes Binoculars Orion SkyQuest XX12g XX14g GoTo Truss Tube Dobsonians 10137 XX12g 8964...

Страница 2: ...tube section 12 5mm Illuminated Pl ssl 1 25 eyepiece Eyepiece rack Dobsonian base Top baseplate Bottom baseplate Polyethylene foam dust guard EZ Finder II 35mm DeepView 2 eyepiece 2 Dual speed Crayfo...

Страница 3: ...g the primary mirror and mirror cell The XX14g model has a fourth box containing the truss poles which for the XX12g are included in the OTA box Before beginning assembly unpack each box and confirm t...

Страница 4: ...3 Counterweight mounting bolts XX14g only 6 Counterweights 2 2 lbs ea XX14g only 1 Cooling accelerator fan with battery holder XX12g only 1 Instruction manual not shown 1 Starry Night CD ROM Figure 2...

Страница 5: ...12g only feet are pre installed on XX14g 3 Feet wood screws 1 long XX12g only 1 SynScan AZ hand controller 1 Hand controller cable coiled 1 Azimuth motor connection cable 1 RS 232 computer cable 1 DC...

Страница 6: ...e motor housing the right side panel and the front panel For the initial assembly of the base you will need a Philips screwdriver To install the feet XX12g only feet are pre installed at the factory o...

Страница 7: ...wood screws and the 4mm hex key On the XX12g the left side brace is shorter than the right side brace On the XX14g the side braces are the same length Figure 8 Locations for insertion of connecting b...

Страница 8: ...g connect ing bolts with the threaded inserts in the baseplate Turn the connecting bolt hand knobs to fasten the side panel front panel structure to the baseplate Firmly tighten all 12 connecting bolt...

Страница 9: ...mirror is installed there will be no need to remove it except if clean ing is necessary see Section 11 Care Maintenance First the mirror will be installed in the tube then the upper and lower section...

Страница 10: ...erneath the screw heads Then gradually tighten both screws just until the metal plate is no longer loose Repeat this with the other two retaining clips Now the clips are properly tensioned 5 Assemblin...

Страница 11: ...t three of the six counterweights onto the rear cell of the lower tube section The XX12g does not utilize counterweights Installing the counterweights now will make the tube heavier to lift but they w...

Страница 12: ...con necting knob is facing upward Then the telescope tube can be held horizontally and just lowered into the base by gently sliding the tube s altitude hub into the altitude trun nion on the base Fig...

Страница 13: ...tube in place if it is too heavy or unwieldy for you to do by yourself 1 Grasp the rear end ring of the tube with one hand and one of the truss tubes with the other hand as shown in Figure 26 Lift th...

Страница 14: ...to see the dot without difficulty Typically a dimmer set ting is used under dark skies and a brighter setting is needed under light polluted skies or in daylight Aligning the EZ Finder II When the EZ...

Страница 15: ...components of an XX12g or XX14g Dobsonian short distances without assistance Of course having a helper will facilitate these activities but if or when you find yourself on your own for an evening obse...

Страница 16: ...To Hand Controller s Features and Functions The GoTo hand controller Figure 29a allows direct access to all the motion controls of the telescope and a database with some 42 000 pre set objects The con...

Страница 17: ...the RJ 12 connector of the cable into the jack labeled HC on the altitude motor housing see Figure 12 Plug the 12 volt DC power cable connected to your 12 volt DC power source into the Power jack on...

Страница 18: ...reference The descriptions below will lead you through step by step procedures for both alignment methods NOTE Before performing either of the alignment meth ods be sure that the EZ Finder II is preci...

Страница 19: ...ou have a star chart handy or are able to identify two bright stars visible in the night sky To perform the two star alignment you follow the same steps described for the Brightest Star alignment exce...

Страница 20: ...gh to land an object somewhere in the field of view of a low power eyepiece such as the DeepView 35mm If dur ing an observing session you discover that the GoTo point ing is off a bit the PAE function...

Страница 21: ...position The Custom position is the previously set parking position The hand controller will remember the coor dinates of a park position that you have specified PAE Allows user to fine tune star ali...

Страница 22: ...hen press ENTER to confirm 5 The hand control will prompt Re align Encoder complet ed on the LCD screen Press ENTER to confirm and finish the Re align Encoder procedure Handset Setting This submenu al...

Страница 23: ...ow the instructions provided by the program to connect the mount and computer The SkyQuest XXg will be under the full control of your computer once the con nection is successfully established Disconne...

Страница 24: ...rs with each other and with the mechanical axis of the telescope is called collimating Collimating is relatively easy to do and can be done in day light or at night Because the primary mirror is shipp...

Страница 25: ...ub of the 4 vaned spider several turns Now grasp the mirror to prevent it from rotat ing be careful not to touch the surface of the mirror while turning the center screw with a Phillips screwdriver Fi...

Страница 26: ...ocusing knob If the telescope is correctly collimated the expanding disk should be a perfect circle Figure 36 If the image is unsymmetrical the tele scope is out of collimation The dark shadow cast by...

Страница 27: ...supplied 35mm 2 eyepiece is 1500 mm 43x 35mm The magnification provided by the 12 5mm illuminated eye piece is 1500 mm 120x 12 5mm The maximum attainable magnification for a telescope is directly rela...

Страница 28: ...ill need to remove it from the telescope Before doing so remove the upper tube section from the assembled telescope Hold the secondary mirror sta tionary while loosening the center Phillips head screw...

Страница 29: ...face of the mir ror in the solution and gently swish it around for a minute or so 3 Now remove the mirror from the water and keep it tilted for a few seconds to allow the water to drain off 4 For the...

Страница 30: ...8 planets moon 212 named stars 55 well known double stars 20 well known variable stars 25 user defined objects SkyQuest XX14g GoTo Primary mirror 356mm diameter parabolic center marked Focal length 1...

Страница 31: ...31 Menu Tree...

Страница 32: ...32 Appendix A Time Zones of the World...

Страница 33: ...ckRateLowByte 0 0 b Negative Azm tracking 80 3 16 7 TrackRateHighByte TrackRateLowByte 0 0 c Positive Alt tracking 80 3 17 6 TrackRateHighByte TrackRateLowByte 0 0 d Negative Alt tracking 80 3 17 7 Tr...

Страница 34: ...34 Star Charts...

Страница 35: ...35...

Страница 36: ...36...

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Страница 40: ...rranty Repair 89 Hangar Way Watsonville CA 95076 Proof of purchase such as a copy of the original receipt is required This warranty does not apply if in Orion s judgment the instrument has been abused...

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