Meade LX200 instruction manual Toc 2. The Cngc Catalog

Page 81
IMPORTANT NOTICE! Never use a telescope or spotting scope to look at the Sun!
Observing the Sun, even for the shortest fraction of a
second, will cause irreversible damage to your eye as well as physical damage to the telescope or spotting scope itself.

Meade Instruments Corporation - Meade LX200 Instruction Manuals

go to Home

Meade Instruments Corporation

Telescopes · Binoculars · Microscopes

Meade LX200 Instruction Manuals

7" Maksutov-Cassegrain Telescope 8", 10", and 12" Schmidt-Cassegrain Telescopes

APPENDIX D: LX200 64,359-OBJECT LIBRARY [ toc ] 1. The LX200 64,35 9-Object Library

The LX200 64,359-Object Library is a collection of the most studied and fantastic objects in the sky.

This library consists of the following object databases:

● 15,928 SAO (Smithsonian Astrophysical Observatory) Catalog of Stars: All stars brighter than 7th magnitude.

●12,921 UGC (Uppsala General Catalog) Galaxies: Complete catalog.

●7,840 NGC (New General Catalog) objects*: Complete catalog.

●5,386 IC (Index Catalog) objects*: Complete catalog.

●21,815 GCVS (General Catalog of Variable Stars) Objects: Complete catalog.

●351 alignment stars for the LX200 telescope.

●110 Messier objects.

●8 Major Planets.

[ toc ] 2. The CNGC Catalog

You will notice that the Messier (M) objects, and the NGC objects have been incorporated into the Meade

Instruments CNGC listing. CNGC stands for "Computerized New General Catalog of Non-Stellar Astronomical Objects". The CNGC is an enhancement from the RNGC (Revised New General Catalog) in many ways. Angular sizes are given in arc-seconds on the CNGC listing, and in a convenient scaled format on the LX200 Keypad Display.

The complete CNGC contains 7840 objects most of which appear in the RNGC (Revised New General Catalog) with the same number. More than 400 objects were added to the RNGC to create the CNGC. Most of these "should have been" in the RNGC in the sense that they are bright and large enough to have been included.

The CNGC is enhanced from the RNGC in many ways. Angular sizes are given in arc-seconds on the CNGC listing, and in a convenient scaled format on the LX200 display. Magnitudes are given to .1 magnitude where possible.

The coordinates in the CNGC listing are listed for the year 2000. The LX200 calculates object positions upon power up to the current date (as shown on the time/date display). This makes the LX200 pointing more accurate. Therefore, the CNGC listing and the LX200 display will not exactly agree on object positions.

Objects have been assigned a "Visual Quality Rating", henceforth called VQ. A large number of VQs have been obtained by observing the objects. To make the VQs as useful as possible, all observations have been made with the same telescope and eyepiece under substantially identical observing conditions. Only for very small objects was a higher power eyepiece used. Your "Visual Quality Rating" of a particular object

http://www.meade.com/manuals/lx200/apxd.html (1 of 6) [7/29/2002 7:28:22 AM]

Page 80 Page 82
Image 81
Page 80 Page 82
Contents Meade Instruments Corporation LX200 Keypad Hand Controller Magnification and Field of View Related Topics Appendix B Equatorial UseImportant Note Introducing the Meade LX200Toc c. Altazimuth Mode Operation Toc 1. What Is the LX200? An OverviewToc e. Keypad and Power Panel Functions Toc a. Heavy-Duty Mounts with 9-speed Dual-Axis ElectronicsToc b Model LX200 Toc a Model LX200Toc c Model LX200 Toc d Model LX200Page We strongly recommend that you keep your original packing Unpacking and InspectionToc 1. What You Should Have Toc 2. Please Look Everything OverToc 4. Caution All LX200 Owners Keypad Version Number Toc 1. The Field Tripod 7, 8, 10 and 12 LX200 Models Telescope AssemblyPrecautionary Notes Page Toc 2. Mounting the Viewfinder 7, 8, 10, and 12 LX200 Models Toc b. Focusing the Viewfinder Toc a. Attaching the ViewfinderToc c. Collimating the Viewfinder Toc 4. Checking the Collimation of the Optics Toc 5 Tube Swing-Through LimitToc 6 Tube Swing-Through Limit Toc 7. Maksutov Fan Quick Start Toc 1. Using the LX200 ManuallyToc 2. Using the LX200 In Land Toc 3. Using the LX200 In Altazimuth Altaz Motion SpeedsToc a. Entering Basic Information 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 3 Daytime Slewing Toc 2 Library Object KeysNext LX200 Keypad Hand Controller Toc 1. Enter Key Toc 2. Mode KeyToc 3. GO to Key Toc 4. Direction KeysToc 7. Focus Key Toc 6. RET KeyToc 8. MAP Key Toc 9. Object Keys M, STAR, and CngcPage Toc 1. ON/ OFF Switch LX200 Power PanelToc 4. DEC Motor Connector Toc 2. N/S SwitchToc 5. CCD Connector Toc 6. Power 12vDC ConnectorToc 9. Focuser Connector Toc 8. Reticle ConnectorToc 10. RS-232 Connector Toc 11. Aux ConnectorPage Toc 1. Mode One TELESCOPE/ Object Library Mode FunctionsToc a. Telescope Menu File Toc 1 SiteToc a Altaz Toc 2 AlignToc a -Star with Known Site Toc b -Star at Known SiteToc d. Which Alignment Method To Use? Toc c. Unknown SitePage Toc c Refined Polar Alignment Toc b PolarToc 3 Smart Toc e LandToc 5 Help Toc 4 12/24 HRToc 6 Reverse NS Toc 7 Reverse EWToc a LX200 Pointing Accuracy Toc 9 HP High-Precision PointingToc 11 DEC. Backlash Compensation Toc 2 Start Find Toc b. Object Library Menu FileToc 4 Parameters Toc 3 FieldToc a Type Gpdco Object Sysmbol LegendToc b Better Quality Symbol LegendToc c Higher Toc d LargerToc e Smaller Toc 2. Mode Two COORDINATES/ GO toToc f Brighter Toc g FainterToc 3. Mode Three CLOCK/ Calendar Toc b. GO to Menu OptionToc c. Slew To Altaz Coordinates Toc 4. Mode Four TIMER/ Freq a. Timer = Menu Option Drive Rate SettingsToc b. FREQ= Menu File Toc 5. Mode Five Keypad OFF/ Brightness Adjust Magnification and Field of View toc 1. Magnifications O.D., except as noted Toc 2. Apparent Field and Actual FieldPage Toc 1 Equatorial Wedge For 7 and 8 LX200 Appendix a Equatorial WedgeToc a. Azimuth Control Equatorial Wedge for 7 and 8 LX200 TelescopeToc 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 Toc 1. Celestial Coordinates Declination and Right Ascension Appendix B Equatorial USEPage Toc 2. Lining Up with the Celestial Pole Toc 3. Precise Polar Alignment Page Next Appendix C LX200 Alignment Star Library and Star Charts Toc 1. Alignment StarsToc LX200 Alignment Star Library Star Charts for Northern Hemisphere Observers Page Next Page Toc 2. The Cngc Catalog Cngc Listings VQ GuideCngc Types Toc 3. The Star Catalog TagsToc 5. The M Catalog Toc 4. Select Star by NameToc 6. The Planets 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 3. Adjusting the Right Ascension Lock Toc 4. Behind the Power PanelToc 5. Factory Servicing and Repairs
Top Page Image Contents