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- 3 -

Captions for Fig. 1

1. Viewfinder
2. Spider vane/diagonal
3. Focuser
4. Main optical tube
5. Polar axis
6. Declination housing
7. Declination lock knob
8. Declination setting circle
9. Counterweights

10. Declination shaft
11. Counterweight safety washer 
12. North leg
13. Pier
14. Latitude locking bolt
15. Pier cap
16. Tripod legs
17. Right ascension setting circle
18. Drive motor housing/control panel
19. Primary mirror cell
20. Polar housing
21. Strap mounting blocks
22. Saddle plate
23. Mounting straps
24. Focuser drawtube

Contents

16" Starfinder Equatorial Telescope

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Parts Listing and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Tripod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Attaching the Equatorial Head . . . . . . . . . . . . . . . . . . . . 4
Adjusting the Latitude . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mounting the Counterweights. . . . . . . . . . . . . . . . . . . . . 4
Attaching the Focuser Assembly . . . . . . . . . . . . . . . . . . 4
Attaching the Viewfinder . . . . . . . . . . . . . . . . . . . . . . . . 4
Mounting the Primary Mirror Cell . . . . . . . . . . . . . . . . . . 4
Mounting the Secondary Mirror . . . . . . . . . . . . . . . . . . . 4
Attaching the Mounting Straps. . . . . . . . . . . . . . . . . . . . 4
Mounting the Optical Tube. . . . . . . . . . . . . . . . . . . . . . . 4

Balancing the Telescope . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

R.A. Encoder Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
On/Off Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Installing the Batteries . . . . . . . . . . . . . . . . . . . . . . 5

12vDC Outlet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Collimation of the Optical System . . . . . . . . . . . . . . . . . . . . . 6

Correct Collimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Spider Vane Adjustments. . . . . . . . . . . . . . . . . . . . . . . . 6
Secondary Mirror Adjustments. . . . . . . . . . . . . . . . . . . . 6
Primary Mirror Adjustments . . . . . . . . . . . . . . . . . . . . . . 7

The Viewfinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Focusing the Viewfinder. . . . . . . . . . . . . . . . . . . . . . . . . 7
Aligning the Viewfinder . . . . . . . . . . . . . . . . . . . . . . . . . 7
Using the Viewfinder . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Magnification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Astronomical Observing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Celestial Coordinates: Declination & Right Ascension. . . 8
Polar Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Calibrating the Declination Circle . . . . . . . . . . . . . . 9

How to Locate Objects in the Night Sky. . . . . . . . . . . . . 9
Motor Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Southern Hemisphere Operations . . . . . . . . . . . . . 9

Setting Circles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Observing Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Astrophotography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Optional Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Telescope Maintenance and Servicing. . . . . . . . . . . . . . . . . 12

Care of Optics and Main Tube . . . . . . . . . . . . . . . . . . . 12

Cleaning the Optics . . . . . . . . . . . . . . . . . . . . . . . 12
Cleaning the Optical Tube . . . . . . . . . . . . . . . . . . 12

Star Testing the Collimation. . . . . . . . . . . . . . . . . . . . . 12
Telescope Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Slow Blow Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . 13
Balance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Clutch Pressure Plate . . . . . . . . . . . . . . . . . . . . . 13
Worm Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Meade Customer Service. . . . . . . . . . . . . . . . . . . . . . . 14

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

® The name ‘Meade’ and the Meade logo are trademarks

registered  with  the  U.S.  Patent  Office  and  in  principal
countries throughout the world.

© 1998 Meade Instruments Corporation

Summary of Contents for 50 AZ-T

Page 1: ...Meade Instruments Corporation INSTRUCTION MANUAL 16 Starfinder Reflecting Telescope ...

Page 2: ...e shortest fraction of a second will cause instant and irreversible damage to your eye as well as physical damage to the telescope itself When observing with the telescope during the daytime do not point the telescope even close to the Sun 1 24 2 3 4 5 6 7 8 9 10 11 12 13 14 16 15 17 18 20 21 22 19 23 ...

Page 3: ...l Panel 5 R A Encoder Port 5 On Off Switch 5 Installing the Batteries 5 12vDC Outlet 6 Collimation of the Optical System 6 Correct Collimation 6 Spider Vane Adjustments 6 Secondary Mirror Adjustments 6 Primary Mirror Adjustments 7 The Viewfinder 7 Focusing the Viewfinder 7 Aligning the Viewfinder 7 Using the Viewfinder 7 Magnification 7 Astronomical Observing 8 Celestial Coordinates Declination Ri...

Page 4: ...ft after the lighter counterweight CAUTION Be sure to secure the counterweight safety washer 11 Fig 1 onto the end of the declination shaft by placing the washer at the end of the shaft and replacing the panhead screw The counterweights should never be removed with the optical tube in place 5 Attaching the Focuser Assembly To install the focuser assembly first lay the optical tube flat on a floor ...

Page 5: ... advantage if the telescope is to be frequently disassembled or transported CONTROL PANEL R A Encoder Plug The R A encoder plug 4 Fig 2 is used if the Magellan I Computer System is purchased for the Meade 16 Starfinder Details of how this additional encoder plug is used can be found in the Magellan I instruction manual The Magellan II system requires a hardware upgrade and different control panel ...

Page 6: ...4 Secondary Mirror Assembly 1 Spider Vanes 2 Tilt Screws 3 Secondary Mirror Holder Face on view Edge on view 1 3 2 2 Spider Vane Adjustments Looking down the open end of the telescope tube check to see if the secondary mirror system is centered in the optical tube If the assembly is off center loosen one of the spider vane adjustment lock knobs while unscrewing the opposite knob Only make adjustme...

Page 7: ...s MAGNIFICATION The magnification or power at which a telescope is operating is determined by two factors the focal length of the eyepiece employed and the focal length of the telescope The Meade Starfinder telescope is supplied with one eyepiece as standard equipment The focal length of the eyepiece 25mm is printed on its side Telescope focal length is roughly speaking the distance that light tra...

Page 8: ...e celestial equator Objects located further and further east of the prime Right Ascension grid line 0hr 0min 0sec carry increasing R A coordinates All celestial objects are specified in position by their celestial coordinates of Right Ascension and Declination The telescope s Dec and R A setting circles 8 and 17 Fig 1 may be dialed to the coordinates of a specific celestial object which may then b...

Page 9: ...to the monthly star charts presented in astronomy magazines such as Sky Telescope and Astronomy will be helpful With these aids and with a little experience at the controls of the Starfinder you will soon be exploring the surface of the Moon the planets of our Solar System and the incredible assortment of star clusters galaxies and nebulae that lie beyond The Motor Drive The DC drive system on you...

Page 10: ...telescope be precisely aligned with the pole The setting circles may also be utilized in the absence of a power source for the motor drive In this case however it is necessary to manually reset the R A of the object being observed just before moving the telescope to the next object Observing Tips To enjoy the 16 Starfinder telescope to its fullest potential follow these recommendations 1 Let the t...

Page 11: ...STROPHOTOGRAPHY Your reflecting telescope can be used as a powerful astrophotographic lens with the addition of virtually any 35mm Single Lens Reflex SLR camera body The Basic Camera Adapter see OPTIONAL ACCESSORIES this page and T Mount for your specific brand of SLR camera serve as the link between telescope and camera The Starfinder Equatorial Telescope design allows the user to take short expo...

Page 12: ...the user to make fine micrometric adjustments in Declination 140 2x Barlow Lens The Barlow Lens or Telenegative Amplifier is a convenient accessory used to increase the effective magnification of any given eyepiece The Barlow Lens is inserted into the focuser and accepts all standard 1 25 O D eyepieces 607 Power Cord This 25 ft power cord allows the user to power the Starfinder Equatorial Telescop...

Page 13: ...18 There are five wires coming off the motor These wires all lead to one connector 10 Fig 18 that plugs into the top corner of the circuit board next to the slow blow fuse Unplug this connector the motor plug before beginning any work on the motor b Tighten each of the three clutch pressure plate screws 1 Fig 18 slightly until there is sufficient drag to drive the telescope c Plug the connector ba...

Page 14: ... Meade Starfinder TM 16 Reflecting Telescope TELESCOPE Starfinder Equatorial 16 Optical Design Newtonian Reflector Diameter Clear Aperture 406mm 16 Primary Secondary Mirrors Grade A Pyrex glass fine annealed Secondary Mirror Support 4 vane steel Focal Length 1830mm Focal Ratio f 4 5 Resolving Power arc secs 0 28 Limiting Visual Magnitude 15 6 Limiting Photographic Magnitude 18 1 Image Scale 0 79 i...

Page 15: ...e This warranty applies to the original purchaser only and is non transferable Meade products purchased outside North America are not included in this warranty but are covered under separate warranties issued by Meade international distributors RGA Number Required Prior to the return of any product or part a Return Goods Authorization RGA number must be obtained from Meade by writing or by calling...

Page 16: ...ruments Corporation World s leading manufacturer of astronomical telescopes for the serious amateur 6001 Oak Canyon Irvine California 92620 949 451 1450 Fax 949 451 1460 www meade com Ver 0698 Part no 14 0221 50 ...

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