20110215 Telescope Parts ID

 

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23.  _______________________________     _______________________________     _______________________________

 

24.  _______________________________     _______________________________     _______________________________

 

25.  _______________________________     _______________________________     _______________________________

 

26.  _______________________________     _______________________________     _______________________________

 

27.  _______________________________     _______________________________     _______________________________

 

 

 

20110215 ACA Telescope Parts ID  Meade Reflector Telescope, Equatorial Mount  

                       

 1.  Viewfinder  ___________________    Spotting/Finder scope ___________     Low magnification, wide field of view

 2.  Focuser  _____________________     Focus knob, Adjusts focus to user's eye     _____________________________

 3.  Cradle rings, __________________    Mounting straps, Easy attachment of scope tube to mount     _____________

 4.  Tube ________________________    Usually made of metal/hard plastic, non flexible__________________________

 5.  Mounting holes - rear set________     For primary mirror cell attachment    (see #26 also) ______________________

 6   Cradle ring lock knobs___________     Usually  knurled for easy attachment      _______________________________

 7.  Polar Axis____________________    Declination axis. Used to align with Polaris. Calibrated in hours/minutes (see#20)

 8.  End ring (black plastic) __________    For end protection.  Primary mirror cell - holds Primary mirror (adjustable)   ___

 9.  Azimuth base _________________     Motor alignment point (up/down and side to side) _______________________

10.  Motor Drive Control Panel _______    Counter rotates to rotation of Earth.  Battery or 120V.  Must be grounded.  ___    

11.  Tripod legs________________      3 Point contact with ground -most stable. Heavy metal or wood to prevent flexion.    

12.  Tripod attachment bolts ________     Inside Pier.  Leg thumbscrews . Easy removal for transport.  ________________________    

13.  Pier  ____________________    Heavy metal for stability, can be adjustable in length for comfortable viewing height.

14.  Safety washer thumbscrew______     =Toe Nut.  Keeps weights from falling off and smashing toes.  ______________

15.  Counterweight Declination shaft __     Holds counterweights, adjustable.  __     _______________________________

16.  Latitude scale _________________   Adjusts to your viewing latitude.  Calibrated in degrees. Same as Declination. __

17. Counterweight _________________    Heavy.  Equal to weight of telescope and mount when using equatorial mount.  

18.  Latitude lever _________________     Locks latitude in set position.  _______     ______________________________

19.  Counterweight safety washer_____     Prevents weight from pressing on mount head.  ________________________

20.  Equatorial Mount ______________     Type of tracking mount. Required alignment for tracking.  Required for                                                                                               photography  and following object for extended period.  _________________     

21.  Declination lock knob___________      Locks axis during tracking.   _______      _______________________________

22.  R. A. Setting Circle______________     Calibrated in degrees.  Also used to find address of objects.   ______________    

23.  Saddle plate___________________     of Equatorial Mount.  Seat for telescope tube.  _________________________

24.  Front dust cover______________    Keeps dust, dirt, moisture out of tube during storage.  Must remove for viewing.

25.  Spider/diagonal holder __________     Holds secondary 45 degree mirror, adjustable, inside tube.   ______________

26.  Mounting holes - forward set _____     Change focal pathway of object, needed for some camera attachments.  ____

27.  Tripod leg adjustments __________     Adjust height of scope for comfortable viewing, assists in leveling telescope. 

 

Use a counterweight equal to the weight of the telescope when using an equatorial mount.

Observing the sun through a telescope will seriously damage your vision

Other parts:

Eyepiece

Red Dot Finder scope

versus Altitude-Azimuth Mount

R. A. = Right Ascension - longitude - azimuth -from N on horizon

Dec = Declination - latitude - altitude -from N above horizon

Dec setting circle

 

http://www.deltos.com/reference/astronomy/meademanual.html

http://www.ehow.com/how-does_4840151_labeling-parts-telescope.html

http://www.ehow.com/how_7637252_set-up-reflecting-telescope-mount.html

http://www.astro-tom.com/telescopes/setting_circles.htm

http://www.astro-tom.com/tips_and_advice/precision_polar_alignment.htm

http://www.astronomynotes.com/nakedeye/s6.htm