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Meade LXD75 8 f/10 Model SC-8AT Specifications, 6 f/5 Model N-6EC Specifications

Models: LXD75

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8" f/10 Model SC-8AT Specifications

Alignment	German-type equatorial mount
Slew Speeds	1x sidereal to 4.5°/sec in 9 increments
Tripod	Variable-height field tripod
Accessories	8 x 50mm finder
	1.25" diagonal
	Super Plössl 26mm eyepiece
	1.25" and 2" eyepiece holders
	Battery pack for 8 D-cell batteries
	(user-supplied)
	Autostar Controller
Polar Finder Reticle Batteries	Maxell LR41 or equivalent
Net telescope weight	27 lbs.
Net tripod weight	45 lbs.

8" f/10 Model SC-8AT Specifications

Optical design	Schmidt-Cassegrain
Clear aperture	8" (203mm)
Focal length	2000mm
Focal ratio (photographic speed)	f/10
Resolving power	0.56 arc secs
Coatings	Meade EMC Super Multi-Coatings
	Ultra-High Transmission Coating optional
Mounting	Die-cast aluminum
Input Voltage	12v DC
Alignment	German-type equatorial mount
Slew Speeds	1x sidereal to 4.5°/sec in 9 increments
Tripod	Variable-height field tripod
Accessories	8 x 50mm finder
	1.25" diagonal
	Super Plössl 26mm eyepiece
	1.25" and 2" eyepiece holders
	Battery pack for 8 D-cell batteries
	(user-supplied)
	Autostar Controller
Polar Finder Reticle Batteries	Maxell LR41 or equivalent
Net telescope weight	24 lbs.
Net tripod weight	45 lbs.

6" f/5 Model N-6EC Specifications

Optical design	Newtonian Reflector
Clear aperture	6" (152mm)
Focal length	762mm
Focal ratio (photographic speed)	f/5
Resolving power	0.74 arc secs
Coatings	Meade EMC Super Multi-Coatings
	Ultra-High Transmission Coating optional
Mounting	Die-cast aluminum
Input Voltage	12v DC
Alignment	German-type equatorial mount
Slew Speeds	1x sidereal to 4.5°/sec in 9 increments
Tripod	Variable-height field tripod
Accessories	6 x 30mm finder
	1.25" diagonal
	Super Plössl 26mm eyepiece
	1.25" and 2" eyepiece holders
	Battery pack for 8 D-cell batteries
	(user-supplied)
	Autostar Controller
Polar Finder Reticle Batteries	Maxell LR41 or equivalent
Net telescope weight	26 lbs.
Net tripod weight	45 lbs.

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Meade LXD75 instruction manual 8 f/10 Model SC-8AT Specifications, 6 f/5 Model N-6EC Specifications

Contents

Instruction Manual LXD 75 -Series TelescopesPage CONTENTS e d B d BC1 g f e1&3$ C A B D E FFig. 1d The LXD75-Series Mount insert shows opposite side of Mount Fig. 1e The LXD75-Series Computer Control Panel see 2$ aboveLXD75-SeriesYour Personal Window to the Universe 2$ Computer Control Panel see Fig. 1e LXD75 TIPS Join an Astronomy Club, Attend a Star PartyAUTOSTAR FEATURES FeaturesI G K J Tour the Cosmos with Just the Push of a ButtonNote Pressing MODE repeatedly while in the “Select Item” level moves Local Time and Local Sidereal Time LST Timer and Alarm StatusPress MODE again to return to the previous menu Autostar to the topmost screen “Select Item Object.”How to Assemble Your Telescope GETTING STARTEDAttach viewfinder bracket Achromatic refractor, Schmidt-Newtonian and Note Remember to turn off the LED when you are not using the reticle A B C D E FBalancing the Telescope Aligning the Viewfinder Choosing an EyepieceFig. 14b Viewfinder assembly, Newtonian models Observing by Moving the Telescope Manually Too Much Power?LXD75 TIPS Activate the Arrow Keys Autostar Models Only Slew Speeds Autostar Models Onlyx sidereal 0.5 arc-min/sec or 0.008/sec Setting the Polar Home Position Observe the MoonTracking Objects Observe a Star using the Automatic Tracking Feature Using Autostars GO TO Capabilities Autostar Models OnlyWhich One’s the Alignment Star? Moving Through Autostar’s Menus Autostar Models Only Initializing Autostar Autostar Models OnlyTraining the Drive Autostar Models Only Easy Alignment Autostar Models Only Go To Saturn Autostar Models OnlyUsing the Guided Tour Autostar Models Only Autostar Navigation Exercise ExampleBASIC AUTOSTAR OPERATION A ut o starEntering Data into Autostar Navigating AutostarLook into the Future LXD75 TIPSAUTOSTARS MENUS Select Item SetupSelect Item Object Select Item EventMENUS Object MenuEvent Menu Glossary MenuUtilities Menu Never use a MeadeSetup Menu LXD75 TIPS Observing Considerations Note Autostar compensates for daylight savings time, if selected. See c. Custom Allows entry of user-defined tracking ratesSurf the Web LXD75 TIPSAdding Observing Sites USEFUL AUTOSTAR PROCEDURESUsing Autostar to Find Objects Not in the Libraries To GO TO a user-entered objectObserving Satellites LandmarksTo Add a landmark to the database To Check on the Available Memory To Select a landmark from the databaseTo perform a Landmark Survey d C B PHOTOGRAPHYOPTIONAL ACCESSORIES Fig. 24 Series 4000 Eyepieces Fig. 25 #140 2x Barlow LensFig. 26 #905 Variable Polarizer Fig. 27 Series 4000 8 - 24mm Zoom EyepieceFig. 28 Series 4000 Photo-Visual Fig. 29 Series 4000 Nebular Filters Fig. 30 Optional Autostar handbox for EC model users General Maintenance Alignment Collimation of the Schmidt-Newtonian Optical SystemMAINTENANCE b c d e f g Fig. 31b The four collimation screws on the diagonal mirror housingAlignment Collimation of the Schmidt-Cassegrain Optical System Caution Do not force the three collimation Fig. 33a Defocused star images. Misaligned 1, 2, AlignedAlignment Collimation of the Newtonian Reflector Optical System Page SPECIFICATIONS 6 f/5 Model SN-6AT, SN-6EC Specifications8 f/4 Model SN-8AT, SN-8EC Specifications 10 f/4 Model SN-10AT Specifications 5 f/9.3 Model AR-5AT, AR-5EC Specifications6 f/8 Model AR-6AT Specifications 8 f/10 Model SC-8AT Specifications 6 f/5 Model N-6EC SpecificationsAutostar Specifications Autostar DimensionsMeade Customer Service Inspecting the OpticsSetting Circles APPENDIX A CELESTIAL COORDINATESLocating the Celestial Pole Polar AlignmentOne-Star Polar Alignment Two-Star Polar AlignmentMethod #1 Three-Star Alignment Using Autostar The Polar Alignment ViewfinderEnhancement Methods APPENDIX B ENHANCING POINTING PRECISIONMethod 2 Axis Alignment Procedures eyepiece when promptedProcedure #2 To correct for elevation misalignment Method 3 Axis Alignment Using Autostar Method #4 Smart Drive Training Periodic Error Correction Important Note The Train option overwrites any previous PEC dataPEC Update Menu Option PEC Train Menu OptionAPPENDIX C LATITUDE CHART NORTH AMERICAEUROPE SOUTH AMERICAAPPENDIX D EC HANDBOX Important NoteLight No Light StatusSee pages 17 and 18 for more information To move the telescope using the Electronic ControllerModes of Operation Slew SpeedsNote The tracking rate can be increased by up to 65% Note The tracking rate can be decreased by up to 65%Tracking Rates Changing the Polar Mode Fig. 53 Indicator Light Key for Changing the Polar ModeNote The tracking rate can be increased by up to 65% Note The tracking rate can be decreased by up to 65%APPENDIX E MOUNTING THE MODEL SC-8 SCHMIDT- CASSEGRAIN OPTICAL TUBE How to Attach the Optical Tube to the MountAPPENDIX F BASIC ASTRONOMY Autostar GlossaryObjects in Space The MoonPlanets Deep-Sky ObjectsFig. 59 The Pleiades is one of the most beautiful open clusters Further Study LXD75 TIPSTopics BooksPage MEADE LIMITED WARRANTY 14-7500-01 9/04B