Meade LX200 instruction manual

Page 74

Meade Instruments Corporation - Meade LX200 Instruction Manuals

a. If the star drifts South (or down), the telescope's

b. If the star drifts North (or up), the telescope's

polar axis is pointing too far East (Fig. 22)

polar axis is pointing too far West (Fig. 23).

4.Move the wedge in azimuth (horizontally) to effect the appropriate change in polar alignment. Reposition the telescope's East-West polar axis orientation until there is no further North-South drift by the star. Track the star for a period of time to be certain that its Declination drift has ceased. (Please note that Figs. 22, 23, 24, and 25 show the telescope pointed in the 90 degree position, and not the 0 degree position that is required for "Drift" method alignment. This is done to illustrate the position of the pole star relative to the polar axis of the telescope.)

5.Next, point the telescope at another moderately bright star near the Eastern horizon, but still near the celestial equator. For best results, the star should be about 20° or 30° above the Eastern horizon and within ± 5° of the celestial equator.

6.Again note the extent of the star's drift in Declination:

a. If the star drifts South, (or down) the telescope's

b. If the star drifts North, (or up) the telescope's

polar axis is pointing too low (Fig. 24).

polar axis is pointing too high (Fig. 25).

7. Use the latitude angle fine-adjust control on the wedge to effect the appropriate change in latitude angle,

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Contents Meade Instruments Corporation LX200 Keypad Hand Controller Magnification and Field of View Appendix B Equatorial Use Related TopicsIntroducing the Meade LX200 Important NoteToc e. Keypad and Power Panel Functions Toc 1. What Is the LX200? An OverviewToc c. Altazimuth Mode Operation Toc a. Heavy-Duty Mounts with 9-speed Dual-Axis ElectronicsToc c Model LX200 Toc a Model LX200Toc b Model LX200 Toc d Model LX200Page Toc 1. What You Should Have Unpacking and InspectionWe strongly recommend that you keep your original packing Toc 2. Please Look Everything OverToc 4. Caution All LX200 Owners Keypad Version Number Telescope Assembly Toc 1. The Field Tripod 7, 8, 10 and 12 LX200 ModelsPrecautionary Notes Page Toc 2. Mounting the Viewfinder 7, 8, 10, and 12 LX200 Models Toc c. Collimating the Viewfinder Toc b. Focusing the ViewfinderToc a. Attaching the Viewfinder Toc 6 Tube Swing-Through Limit Toc 4. Checking the Collimation of the OpticsToc 5 Tube Swing-Through Limit Toc 7. Maksutov Fan Toc 1. Using the LX200 Manually Quick StartToc 2. Using the LX200 In Land Toc a. Entering Basic Information Toc 3. Using the LX200 In Altazimuth AltazMotion Speeds Toc 1 Latitude and Longitude of the Observing Site Toc 2 Local Time and Date Toc b. Setting Up the Telescope Page Toc c. Using the Telescope Toc 1 The Mode Key Toc 2 Library Object Keys Toc 3 Daytime SlewingNext LX200 Keypad Hand Controller Toc 3. GO to Key Toc 2. Mode KeyToc 1. Enter Key Toc 4. Direction KeysToc 8. MAP Key Toc 6. RET KeyToc 7. Focus Key Toc 9. Object Keys M, STAR, and CngcPage LX200 Power Panel Toc 1. ON/ OFF SwitchToc 5. CCD Connector Toc 2. N/S SwitchToc 4. DEC Motor Connector Toc 6. Power 12vDC ConnectorToc 10. RS-232 Connector Toc 8. Reticle ConnectorToc 9. Focuser Connector Toc 11. Aux ConnectorPage Toc a. Telescope Menu File Mode FunctionsToc 1. Mode One TELESCOPE/ Object Library Toc 1 SiteToc a -Star with Known Site Toc 2 AlignToc a Altaz Toc b -Star at Known SiteToc c. Unknown Site Toc d. Which Alignment Method To Use?Page Toc b Polar Toc c Refined Polar AlignmentToc e Land Toc 3 SmartToc 6 Reverse NS Toc 4 12/24 HRToc 5 Help Toc 7 Reverse EWToc 9 HP High-Precision Pointing Toc a LX200 Pointing AccuracyToc 11 DEC. Backlash Compensation Toc b. Object Library Menu File Toc 2 Start FindToc a Type Gpdco Toc 3 FieldToc 4 Parameters Object Sysmbol LegendToc c Higher Quality Symbol LegendToc b Better Toc d LargerToc f Brighter Toc 2. Mode Two COORDINATES/ GO toToc e Smaller Toc g FainterToc c. Slew To Altaz Coordinates Toc 3. Mode Three CLOCK/ CalendarToc b. GO to Menu Option Toc b. FREQ= Menu File Toc 4. Mode Four TIMER/ Freq a. Timer = Menu OptionDrive Rate Settings Toc 5. Mode Five Keypad OFF/ Brightness Adjust Magnification and Field of View toc 1. Magnifications Toc 2. Apparent Field and Actual Field O.D., except as notedPage Appendix a Equatorial Wedge Toc 1 Equatorial Wedge For 7 and 8 LX200Equatorial Wedge for 7 and 8 LX200 Telescope Toc a. Azimuth ControlToc b. Deluxe Latitude Adjuster Toc 2. Superwedge For 10 and 12LX200 Mounting Superwedge, b Latitude Range Holes Page Underside of the Drive Base Toc a. Setting Magnetic Declination Toc b. Compass Installation Toc c. Finding True North Page Page Next Page Appendix B Equatorial USE Toc 1. Celestial Coordinates Declination and Right AscensionPage Toc 2. Lining Up with the Celestial Pole Toc 3. Precise Polar Alignment Page Next Toc LX200 Alignment Star Library Appendix C LX200 Alignment Star Library and Star ChartsToc 1. Alignment Stars Star Charts for Northern Hemisphere Observers Page Next Page Toc 2. The Cngc Catalog VQ Guide Cngc ListingsTags Cngc Types Toc 3. The Star CatalogToc 6. The Planets Toc 4. Select Star by NameToc 5. The M Catalog Object Library Planet Legend Toc 7. Other DatabasesConstellation Codes Related Topics Page Meade Instruments Corporation Page Toc 2. Collimation Alignment of the Optical System Page Defocused Star Images Toc 5. Factory Servicing and Repairs Toc 3. Adjusting the Right Ascension LockToc 4. Behind the Power Panel