Comet Johnson V2
in the Evening sky
June 15, 2017

 
 This
            comet changes subtlety every time I image it. The dust spike,
            pointing roughly sun ward is now starting to broaden out and
            is still yellowish in hue. But to the lower right the very faint
            gas tail is starting to fan out a bit, and is very difficult
            to record well. But the teal color of the coma and central areas
            is still very strong, and the comet shows a sharp central condensation.
            This field is full of galaxies. There are several nice edge on
            types just under the comet head.
 

            


            
 Click
            here for a larger 1290 sized image


            
Field here
            is about 1 degree


Lens:  10" f/3.9 Orion Astrograph with Baader MPCC coma corrector
Platform:  Astrophysics AP1200 
Camera: SBIG ST10XME
Exposure:  62m  LRGB   50:4:4:4
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing  4/10, Transparency 6/10
Outside Temperature:  60F
Processing Tools:  Maxim DL, Photoshop CS2
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