Sun in CaK / White Light
With Explore Scientific AR152 Refractor
+ Lunt CaK filter or Baader Wedge
Uploaded 7/13/17

Daily Report
For Thursday, July 13, 2017

 

 Seldom
            does a group of this size form during a time so near solar minimum.
            Seeing was poor, however there were enough clear moments mixed
            in to be able to obtain some nice details. The calcium image
            is pretty amazing for fine plage detail! 

Images below are 400 wide and clickable to full size

 


            
 WHITE
            LIGHT:


            
Lets
            start with the Prime focus with the AR152 and Baader Continuum
            filter, and wedge:


            

              

                 
                
                  
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1400 x 1200

                		
              

            


            
Next,
            we put in the 5x Televue Powermate for a 5m equivalent focal
            length:


            

              

                 
                
                  
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And
            then on to the Calcium K line filter, this set is with a 4"
            stop, and 1.5x Barlow for f/10


            

              

                 
                
                  
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1400 x 1200

                		
              

            


            

              

                 
                
                  
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Finally,
            here is a shot taken moments later of the setup:


            

              

                 
                
                  
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1400 x 1200

                		
              

            




Instruments:  Explore Scientific AR152
Platform:  Astrophysics 1200
Camera:  DMK 51 (1600 x 1200)
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing 1.5/5, Transparency 7/10
Outside Temperature: 65F
Processing: Autostakkert 2, Registax 6, Photoshop CS2

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