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                     On this page:  
        for Beginners-More on Telescopes                for Telescope Builders                Suggested Books               Links & more Resources  
     
     
What I recommend for Beginners
           
          Dobsonian Telescopes       GoTo Mounts for beginners?        
        Galileo 135mm (5.3 inches) Dobsonian
This is one of the nicest commercial Telescopes of its class.  I purchased and donated this Telescope to a local Scouting group.  It has a decent aperture and is made of real wood and has a Cherry finish.  Though heavy, it easy to transport and assembles quickly.  It comes with a 2 inch rack & pinion focuser.  


Click for 135mm model         

 Click for 160mm model
      There are a lot of inexpensive "GoTo" Telescopes available for the beginner. I like the "Go To" concept a lot.  I DO NOT recommend them for the casual or beginning Astronomer.  The advertised advantage of the Go To is that it will automatically aim your Telescope at a chosen object, thereby sparing the user of that sometimes frustrating task.  But unless it is a high end GPS model, you must "calibrate" the Telescope by aiming at 3 known stars and entering them into the computer.  This gives the Telescope a reference for locating all other objects.  It is often the case that I have looked at several objects by the time others have finally calibrated his/her Telescope.  These Telescopes are often difficult to use, especially for a beginner.  The truth is, we still need to know what objects are up and what objects are worth looking at.  We still need to "learn & know the sky".  The Books below are excellent resources for Learning the Sky.        
     
                   
        10 inch Sky Watcher
Dobsonian Design.  Good aperture and good portability with collapsing tube makes this an ideal Telescope for beginners or experienced observers. 

B&H sells these and other Telescopes.  Click Banner below to see details on this Telescope.
      Recommended Telescopes
Most e-mail I receive comes from beginners.  With each
e-mail, I re-live all the mistakes I made when I first entered the field of Amateur Astronomy. 

The first rule is to not overload yourself with what you think you should have.
The Telescopes shown on the left are easy to assemble and easy to use.  Telescopes that are cumbersome, difficult to set up and to use end up in permanent storage or with a for sale sign on them.  
I would recommend a Dobsonians ranging from 4 to 12 inches.  I own 2 Dobsonians. They are simple and fun.  If needed or wanted, Dobsonians can later be upgraded with tracking and other features.
       
                           
          Choosing Eyepieces       Choosing a Reflector vs. Refractor         
        If your new or used Telescope has Eyepieces with quality lower than Plossl eyepieces, you will want to replace them with Plossls or higher quality eyepieces.  No matter how good your Telescope's optics are, if your Eyepieces are poor, your image will be poor.  I recommend 3 Eyepieces minimum.  First and foremost, you will want a Low Power Eyepiece for wide field viewing, object searching and maximum brightness.  You will find that it is your most used eyepiece.  Mid Power is for bright Nebula and High Power for Planets & the Moon.  Click the B&H Banner below to shop for Plossl Eyepieces.              
Plossl Eyepieces Read Al Naglers' article on Choosing Eyepieces Link-Choosing a Telescope type
                           
        Imaging Telescopes for Beginners?       The Future of Observing?         
        Often a beginner will say, that they may want to image some day, so they want a Telescope that can handle it.  The truth is, Imaging can range from hand holding a simple Digital Camera over an eyepiece to a serious financial and time commitment with hi end Telescopes, Cameras and Software.  It can mean hours of imaging and more hours at the Computer.  This is not to mention the frustration of trying keep up the latest Camera and Software and trying to out do Images produced by others.  For now, Stick with the simple, inexpensive Telescope and try imaging with your Digital Camera or modified Webcam on bright objects such as the Moon to see if imaging is for you.  Eventually, CCD equipment will become more affordable and easier to use.  See the image to the right for a suggested future scenario.              
Toucam Web Cam attached to
a TeleVue 76mm Refractor
As CCD equipment improves, observing and Imaging will be seamless and the way we observe will continue change.  Above image depicts a projected live image at a future Public Star Party.
                           
                           
        Buying Used?     LOST MANUAL?  FREE Telescope Manual Downloads       
        Buying used means that your Telescope may be missing parts and Manuals.     Your telescope is probably not unlike Orion Telescopes sold today.
Find the manual that most closely matches your Telescope and click the image below.
     
.
         If you buy a used Telescope, make sure the Focuser accepts 1.25 inch Eyepieces.  This will permit you to more easily upgrade your Eyepiece collection.   Many older models accept .965 inch eyepieces.  These were never very good and not worth seeking out.  You would be better off replacing the entire Telescope then to try to find eyepieces and accessories.                 
              Refractor Telescope with Equatorial Mounting   Refractor Telescope with Altazimuth Mounting   Reflector Telescope with Equatorial Mounting   Reflector Telescope with Altazimuth Mounting      
Click Image to
Download Manual
Click Image to
Download Manual
Click Image to
Download Manual
Click Image to
Download Manual
                           
                           
             
      for Telescope Builders      
                     
Telescope Building - Choosing the Size of your Secondary Mirror
What is the MINIMUM size your Secondary Mirror's minimum Axis should be?

Minimum Secondary Size
Equals ( = )
( d ) divided by the ( f/Ratio )
of your Telescope.


d=the center of the Spider to the Focal Plain when the Telescope is focused at Infinity
.
My 20 inch Telescope is close.
d = 13.75 inches.  The f/Ratio  = 3.55.

Minimum Secondary
Size = 3.87 inches

The 20 inches Secondary's actual aperture,
allowing for the ridge of the Secondary Holder, is 4.20 inches.


source: Gary Seronik.com
     
                     
                     
           
      Product Samples:      
                     
      Mirror Cells   Filter Wheels   Truss Clamps   Cage Truss Clamps   Travel Truss Clamps   Cage Rings      
Aurora Precision offers additional products and custom machining.  Aurora Precision has provided components and custom machining for 3 of my Telescopes; the 20 inch f/3.55 & the 12 inch & 10 inch Travelers.
      (Click Banner to go to Aurora Precision)      
             
                         
the Short Telescope is growing in popularity
                 
The Unknown Astronomer at the
2010 OSP with a
4.5 inch f/4 Orion StarBlast
Mel Bartels 13 inch f/3
Folds into its-self for Travel.
(click image for Website)
Ken Lulay's 8 inch f/3.8
Collapses into Box for travel.
(click image for Website)
Jerry Oltion's 8 inch f/4.2
Scaled up Astroscan
(click image for Website)
                         
                         
           
               
      Suggested Books for Observing      
Click Image for information Click Image for information Click Image for information Click Image for information Click Image for information Click Image for information
Celestial Sampler: 60 Small-Scope Tours for Starlit Nights
by Sue French

The Cambridge
Encyclopedia of the Sun
by Kenneth Lang
City Astronomy by Robin Scagell, Leif J.. Robinson  The Year Round Messier Marathon Field Guide
by H.C. Pennington 
Sky Atlas for Small Telescopes & Binoculars
by Billie E & David S. Chandler 
Sky & Telescopes
Pocket Sky Atlas
by Roger W. Sinnot
                           
      COMING: Guide to viewing the Southern Sky-for the unfamiliar Northern Observer  By Leo Cavanaro of GAMA      
                               
                 
               
             
      An excellent source for Telescopes & accessories-B&H is a TeleVue dealer   An excellent source for Astronomy books & Software      
                 
     
     
   
    Links              
                     
            Astronomy in The Pacific Northwest        
            Astronomical Observatories-Central Oregon        
    Pine Mountain Observatory
    Sunriver Nature Center & Observatory
                     
            Astronomical Societies & Associations        
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                Rose City Astronomers (RCA) of Portland, Oregon        
                Southwest Washington Star Gazers (SWS)        
                     
Astronomy Websites
                Astronomy for Everyone-featuring Ms. Galaxy          
                Aurora Precision-Telescope Components         
    Mel Bartels
                Richard Berry's Home Page        
                David Haworth-Sky Imaging        
                Ken Lulay's Telescope Website        
                Jerry Oltion's Big Astroscan Page         
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                tripcheck.com  for Oregon        
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            Northwest Travel Information        
                   Central Oregon-Redmond Airport        
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            Northwest Star Parties        
                Golden State Star Party (GSSP)        
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                Prineville, Oregon-Oregon Star Party (OSP)        
                Sunriver, Oregon        
    Vancouver, WA
    Fires in the Pacific Northwest
                Weather in Mendoza Argentina-GAMA-Sister Club to RCA        
                     
            Visible from the Northwest-Coming Events        
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                 Venus Transit 2012        
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          Observing & Observing Conditions        
                Phases of the Moon        
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          Observing-Deep Sky Sketching        
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      Astronomy Websites    
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            Astronomical & Science Web-Publications         
    Heavens Above
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                Northern Lights by Sigurour H. Stefnisson         
                One Minute Astronomer         
                Sciencedaily.com         
                SLOOH.COM  Live Space Show         
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                The Universe Today         
                     
            Travel Websites        
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      Telescope Links    
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            Telescope Reviews & Information        
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          Telescope Filter Information        
                About Filters on Astro-Systems Website        
                About Filters-on Lumicon's Website        
                        
            Telescope Companies        
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                Vivian Bock's Litescope-Ultra Portable 12.5 inch        
                     
                     
                     
                     
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