Sun in HAlpha
With Lunt LS100THa 
Uploaded 3/23/19

Daily Report
For Saturday March 23, 2019
 
 Only
            rarely does a sizeable sunspot appear during solar minimum. This
            morning we were treated to such an event, right on the limb of
            the solar disk. Here are a few shots with the Lunt LS100 solar
            scope to consider.
 
Images below are 1290 wide and non clickable
 

            
 Halpha:

            
Lets
            start with the full disk. You can see not much is going on here,
            except for the lone active region on the limb:

            


            
 

            
The
            prom view is obtained by overexposing the disk to see the faint
            prominences. Here Ive blocked out the pure white disk and now
            you can see a nice arch prom about where the sunspot is heading.

            


            
 

            
Combining
            both images into one, we get this.

            


            
 

            
With
            the 3x Klee barlow, we zoom in on the active region!

            


            
 

            
Same
            view but with the filter retuned to the red wing of the Halpha
            line. This shows bright white ellerman bombs (microflares) in
            and around the sunspot.

            


            
 

            
Close
            up (poor seeing) on the prom with the 3x.

            



Instruments:  Lunt LS100THa Halpha
Platform:  Astrophysics 1200
Camera:  DMK 51
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing 2/5, Transparency 9/10
Outside Temperature: 45F
Processing: Registax 6, Photoshop CS2

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