Leisure Time LX20 instruction manual Contents

Page 4

Contents

7" LX200 Maksutov-Cassegrain Telescope 8", 10", & 12" LX200 Schmidt-Cassegrain Telescope

Introduction

 

5

1. What is the LX200? An Overview

5

 

a.

Heavy-Duty Mounts

5

 

b. Built-in 64,359 Object Library

5

 

c.

Altazimuth Mode Operation

5

 

d.

Terrestrial Operation

5

 

e. Keypad and Power Panel Functions

5

2. Standard Equipment

5

Unpacking and Inspection

6

1. What You Should Have

6

2.

Please Look Everything Over

6

3.

Inspecting the Optics

6

4. Caution: All LX200 Owners

6

5. Caution: 10" and 12" LX200 Owners

6

6.

Keypad Version Number

6

Telescope Assembly

7

1. The Field Tripod

7

2. Mounting the Viewfinder

8

 

a.

Attaching the Viewfinder

8

 

b.

Focusing the Viewfinder

8

 

c.

Collimating the Viewfinder

8

3. Attaching the Diagonal Mirror and Eyepiece

8

4. Collimation

8

5.

12" Tube Swing-Through Limits

8

6.

7" Tube Swing-Through Limit

8

7.

Maksutov Fan

8

Quick Start

 

9

1.

Using the LX200 Manually

9

2. Using the LX200 in LAND

9

3.

Using the LX200 in ALTAZ

10

 

a.

Entering Basic Information

10

 

b. Location of the Observing Site

10

 

c. Local Time and Date

11

 

d. Setting Up the Telescope

11

 

e. Using the MODE key

12

 

f.

Library Object Keys

13

4. Star Alignment

13

 

a. 1-Star with Known SITE

13

 

b. 2-Star with Known SITE

13

 

c.

Unknown SITE

13

 

d. Which Alignment Method to Use

13

The LX200 Keypad Hand Controller

14

1. ENTER K e y

14

2. MODE Key

14

3. GO TO Key

14

4. Direction Keys

14

5. Speed Keys

14

6. RET Key

14

7. FOCUS Key

15

8. AP Key

15

9. Object Keys

15

10. PREV and NEXT Keys

15

The LX200 Power Panel

15

1. ON/OFF Switch

15

2.

N/S Switch

15

3. Ammeter

15

4. DEC Motor Connector

15

5. CCD Connector

16

6. Power 12vDC Connector

16

7. Keypad Connector

16

8. Reticle Connector

16

9. Focuser Connector

16

10. RS-232 Connector

16

11. Aux Connector

16

Mode Functions

16

1. Mode 1: Telescope/Object Library

16

 

a.

Telescope Menu File

16

 

b. Object Library Menu File

20

2. Mode 2: Coordinates/GO TO

22

 

a.

Coordinates Menu File

22

 

b. GO TO Menu Option

22

3.

Mode 3: Clock/Calendar

22

4. Mode 4: TIMER/FREQ

22

 

a. TIMER = Menu Option

23

 

b. FREQ = Menu Option

22

5.

Mode 5: Keypad Off/Brightness Adjust

23

Magnification and Field of View

24

1. Magnification

24

2. Apparent Field and Actual Field

24

Appendix A: Equatorial Wedge

25

1. 8" Equatorial Wedge

25

 

a.

Azimuth Control

25

 

b.

Deluxe Latitude Adjuster

25

2. Superwedge

26

3.

Mounting the Telescope

26

4. Magnetic Compass

27

 

a.

Setting Magnetic Declination

27

 

b.

Compass Installation

27

 

c.

Finding True North

28

Appendix B: Equatorial Use

29

1. Celestial Coordinates

29

2.

Lining Up with the Celestial Pole

29

3.

Precise Polar Alignment

30

Appendix C: Star Library and Star Charts

31

1. Alignment Stars

31

2.

Star Charts

32

Appendix D: Object Library

34

1. The LX200 64,359 Object Library

34

 

a.

SAO Catalog

34

 

b.

UGC Catalog

34

 

c.

CNGC Catalog

34

 

d.

1C Catalog

35

 

e.

GCVS Catalog

35

 

f.

Star Catalog

35

 

g.

M (Messier) Catalog

35

 

h.

Planet Catalog

35

2. CNGC Catalog

36

3.

STAR Catalog

43

4. M (Messier) Catalog

49

Appendix E: Maintaining Your LX200

51

1. Keeping Your Telescope Clean

51

2. Collimation of the Optical System

52

3.

Right Ascension Lock

53

4.

Behind the Power Panel

53

5.

Factory Servicing and Repairs

53

Appendix F: Personal Computer Control

54

1. The RS-232 Cable

54

2.

LX200 Test Program

54

3. LX200 Command Set

55

 

a.

Command Set Formats

55

 

b.

General Telescope Information

55

 

c.

Telescope Motion

56

 

d.

Home Position

56

 

e.

Library/Objects

56

 

f.

Miscellaneous

57

4. LX200 Demo Program

58

Appendix G: LX200 Specifications

62

Image 4
Contents Meade Instruments Corporation Page ¬ WARNING! ¬ Contents Standard Equipment What Is the LX200? An OverviewIntroduction What You Should Have Please Look Everything OverInspecting the Optics Keypad Version NumberField Tripod Telescope AssemblyUse the following steps to assemble your telescope Focusing the Viewfinder Mounting the ViewfinderAttaching the Viewfinder Collimating the ViewfinderUsing the LX200 In Land Using the LX200 ManuallyQuick Start Entering Basic Information Using the LX200 In Altaz AltazimuthLocation of the Observing Site Setting Up the Telescope Local Time and DateUsing the Mode Key Library Object Keys Unknown SiteWhich Alignment Method to Use? Star AlignmentDirection Keys LX200 Keypad Hand ControllerLX200 Power Panel Mode Functions Page Page Backlash Object Library Menu File Enter Mode Two COORDINATES/GO to Mode Three CLOCK/CALENDARMode Four TIMER/FREQ a. Timer = Menu Option Coordinates Menu FileMode Five Keypad OFF/BRIGHTNESS Adjust For astrophotos60.0 Hz Solar Average rate for tracking Planetary rate Due to retrogradesMagnification and Field of View Apparent Field and Actual FieldMagnification Deluxe Latitude Adjuster Equatorial Wedge For 7 and 8 LX200Appendix a Equatorial Wedge Azimuth ControlSuperwedge For 10 and 12LX200 Mounting the Telescope On the WedgeCompass Installation Setting Magnetic DeclinationMagnetic Compass Finding True North Celestial Coordinates Appendix B Equatorial USELining Up with the Celestial Pole Precise Polar Alignment Appendix C LX200 Alignmentstar Library Star Charts Alignment StarsStar Charts For Northern Hemisphere Observers Page SAO Catalog UGC CatalogCngc Catalog Object Library1C Catalog Gcvs CatalogStar Catalog Messier CatalogLittle Dumbbell Nebula 1x4.11200ly Double Cluster h Per 7klyTarantula Nebula Very Red Open Clus + Dneb Glob Clus D2 ST Bubble Nebula Red C1 S10.7x2.5 Capella BellatrixBeta Tau Alnath Beta Lep aStar Catalog Zuben Elschemali SeginusRigel Kentaurus B=1.3 BrachiumAldhibah Sabik A=3.0 B=3.5Ras Algethi Sarin B=8.8Sadalmelik Al Nair 302 Open Clus Sparse M93 Includes dark nebula Keeping Your Telescope Clean Appendix E Maintaining Your LX200Collimation of the Optical System Right Ascension Lock Behind the Power PanelFactory Servicing and Repairs LX200 Test Program RS-232 CableAppendix F LX200 Personal Computer Control Command Set Formats LX200 Command SetGeneral Telescope Information Home Position Telescope MotionLibrary/Objects Miscellaneous Finds the next object in a Find sequenceLX200 Demo Program Counter =REM Keys TelposKeyi Keys Appendix G LX200 Specifications TelescopeLX200I/10 10 LX200f/10 200 f/10 Page Field TripodFig Field Tripod collapsed Oak Canyon, Irvine, California 92618 2000Introduction DC Operation Customer ServiceAC Operation

LX20 specifications

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