Meade LX90 instruction manual Appendix C Training the Drive

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APPENDIX C: TRAINING THE DRIVE

Train the telescope motors using AutoStar. Perform this procedure if you are experiencing any pointing accuracy problems. Fig. 31 depicts the complete Drive Training procedure.

NOTE: Use a terrestrial object, such as a telephone pole or lamp post, to train the drive.

LX90 TIPS

Complete this exercise once every 3 to 6 months to

 

1

Verify that AUTOSTAR

 

Press

>

until it

12

INITIALIZATION is

 

 

 

is centered

 

complete.

 

 

 

 

 

 

 

Scope slews left.

 

 

 

 

 

 

2

Press MODE until

 

 

 

Bring target back

 

 

 

to center using

Select Item is displayed.

 

 

 

ENTER

the Right Arrow key.

 

Select Item

 

 

3

 

 

 

 

 

 

Object

 

 

 

 

 

 

 

 

Press

<

until it

 

 

 

Press the scroll

 

13

 

 

 

is centered

 

 

up key once.

 

 

 

 

 

 

Scope slews right.

 

 

 

 

 

 

 

 

 

 

 

 

Bring target back

 

Select Item

4

ENTER

to center using

 

Setup

the Left Arrow key.

 

 

 

 

 

 

 

E

Access the Setup

 

Train Drive

 

menu.

 

 

 

 

NTER

 

 

14

 

 

 

 

 

Az. Train

 

 

 

 

 

 

 

Setup

 

 

 

 

Menu returns to

 

 

5

 

 

Az. training.

 

 

Align

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Multiple presses.

 

Train Drive

 

 

 

 

 

 

15

 

 

 

 

 

Alt. Train

 

 

 

 

 

 

 

Setup

 

 

EN

Altitude

 

 

 

 

 

 

 

 

Telescope

6

 

TER

(vertical)

 

 

 

 

 

 

 

 

 

training.

 

 

 

Access the

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

Telescope menu.

 

Drive Setup

16

 

 

 

 

 

For this op. . .

 

 

 

 

 

 

Telescope

7

E

NTER

Reminder to

 

use terrestrial

 

Telescope Model

 

1

 

 

 

 

Multiple presses.

 

 

target.

 

 

 

 

Center reference

 

 

 

 

 

 

17

 

 

 

 

 

object

 

 

 

 

Telescope

8

ENTER

Center target

 

Train Drive

using Arrow

 

 

 

 

 

 

Choose the Train

 

 

keys.

 

 

E

 

Press

> until it

 

 

Drive option.

 

 

 

NTER

 

18

 

 

 

 

 

is centered

 

 

 

 

 

 

 

Train Drive

 

 

 

Scope slews down.

 

9

 

 

Bring target back

 

Az. Train

 

 

 

 

 

 

to center using

 

 

Azimuth

 

ENTER

 

E

 

the Up Arrow key.

 

(horizontal)

 

 

 

 

 

 

NTER

 

 

 

 

 

 

 

training.

 

 

Press

>until it

 

 

 

 

 

 

19

 

Drive Setup

 

 

is centered

 

10

 

 

 

For this op. . .

 

 

Scope slews up.

 

 

 

 

 

ENTER

Reminder to

 

 

Bring target back

 

use terrestrial

ENTER

to center using

 

 

target.

 

the Down Arrow key.

 

Center reference

11

 

Train Drive

20

 

object.

 

 

 

Az. Train

 

 

Center target

 

 

 

 

 

 

Multiple presses.

 

ENTER

using Arrow

MODE

 

 

 

 

 

keys.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Select Item

21

 

 

 

 

 

Object

 

 

 

 

 

 

 

 

Fig. 31: Training the Drive Procedure.

Further Study....

This manual gives only the briefest introduction to astronomy. If you are interested in pursuing further studies in astronomy, a few topics are suggested below that are worth reading up on (some of the topics are easy and some are quite challenging). Try look- ing up some of these in the AutoStar glossary.

Also included below is a small sampling of books, magazines and organizations that you might find helpful.

Topics

1.How is a star born? How does a solar system form?

2.How is the distance to a star measured? What is a light year? What is red shift and blue shift?

3.How are the craters on our Moon formed? Is there water under the surface of the Moon?

4.What is a black hole? A neutron star? A quark star? A gamma burster? An Einstein lens?

5.What are stars made of? Why are stars different colors? How is the elemental composition of a star determined? What is an Lyman Alpha forest?

6.What is the difference between a Type 1 and a Type II supernova?

7.What is the importance of studying the composition of comets? Where do comets come from?

8.How old is our Sun? Will our Sun evolve into a planetary nebula or go supernova?

9.What is the Inflationary Big Bang? What is dark matter? What are MACHO's?

10.How are extrasolar planets discovered? What is an accre- tion (or protoplanetary) disk?

11.What are the differences between elliptical, spiral and irreg- ular galaxies? Can globular clusters be older than the uni- verse itself?

Books

1.The Guide to Amateur Astronomy by Jack Newton and Philip Teece

2.The Sky: A User’s Guide by David Levy

3.Turn Left at Orion by Guy Consolmagno & Dan Davis

4.Astrophotography for the Amateur by Michael Covington

Magazines

1.Sky & Telescope

Box 9111, Belmont, MA 02178

2.Astronomy

Box 1612, Waukesha, WI 53187

Organizations:

1.Astronomical League Executive Secretary

5675 Real del Norte, Las Cruces, NM 88012

2.The Astronomical Society of the Pacific

390 Ashton Ave., San Francisco, CA 94112

3.The Planetary Society

65 North Catalina Ave, Pasadena, CA 91106

And watch Jack Horkheimer, Star Gazer, on your local PBS station. Visit Jack’s website at: www.jackstargazer.com

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Contents LX90 Schmidt-Cassegrain Telescope Meade Schmidt-Cassegrain Optical System Contents QUICK-START Guide ON/OFF E D Telescope FeaturesPage To Attach the Handbox Holder Tour the Cosmos with Just the Push of a Button Autostar FeaturesTopmost screen Select Item Object Page Getting Started How to Attach the Tripod to the Telescope AssemblyPrecautionary notes for the tripod How to Assemble Your TelescopeChoosing an Eyepiece Using SmartFinderAligning the Viewfinder Aligning SmartFinderObserving Observing Using AutoStars Arrow KeysObserving By Moving the Telescope Manually Terrestrial ObservingObserve the Moon Slew SpeedsTo Track an Object Automatically Astronomical ObservingMoving Through AutoStar’s Menus Initializing AutoStar for the First TimeHow to perform the Automatic Alignment procedure Observe a Star using the Automatic Tracking FeatureAutomatic Alignment While it does soGo To Saturn Using the Guided TourAutoStar Navigation Exercise Basic Autostar OperationTo Calculate Sunset time Entering Data into AutoStarNavigating AutoStar Select Item Object AUTOSTAR’S MenusObject Menu Menus and Menu OptionsUtilities Menu Event MenuGlossary Menu Observing Considerations Setup Menu Time Zone Shift Menu Daylight SAVING, Adding Observing Sites Advanced Autostar FeaturesTo Add a Site to the user-defined site list To Edit a SiteUsing AutoStar to Find Objects Not in the Database To GO to a user-entered object Observing SatellitesCommand Line How to Create Your Own Guided TourWhat you will need Tour ModesTitle Writing a TourPick END Downloading Tours LandmarksTo Add a landmark to the database To Select a landmark from the databaseAdvanced Alt/Az Alignment IdentifyTo perform a Landmark Survey To check on the available amount of memory in AutoStarOne-Star Alt/Az Alignment BrowseTwo-Star Alt/Az Alignment Photography with a Digital Camera Photography with the LX90Few tips on photography with the LX90 Meade Deep Sky Imager Photography with Meade’s AutoStar SuiteEyepiece Power 2x Barlow Super Plössl 4-elements Optional AccessoriesSuper Wide Angle 6-elements Ultra Wide Angle 8-elements#62 T-Adapter Collimation MaintenancePage Gauging the Movement of the Telescope Meade Customer ServiceInspecting the Optics AutoStar Dimensions LX90 SpecificationsAutoStar Specifications Celestial Coordinates Polar AlignmentLocating the Celestial Pole Setting CirclesAutoStar Polar Alignment Easy Polar AlignmentEquatorial Wedge Lining Up with the Celestial PolePrecise Polar Alignment Star Charts City State/Prov./Country Latitude Latitude Chart for Major Cities of the WorldCity Country Latitude City State/Country LatitudeAppendix C Training the Drive To replace the battery Appendix D Changing the LNT Module BatteryMoon AutoStar GlossaryObjects in Space Deep-Sky Objects PlanetsPage Page Page Meade Limited Warranty