Comet Neowise F3
in the morning sky
July 11, 2020

 

            
 The comet
            is sinking lower in the eastern sky each morning, making it harder
            to get in a dark sky. Such are disadvantages of our southerly
            lattitude. The tail was seen while the head was in a cloud bank
            this morning, protruding about 15 degrees upward. Such an amazing
            sight. The gas tail is now separating from the dust as seen here,
            and the comet is requiring shorter and shorter focal lengths
            to fit in the field.

            
The top image is
            with the SV80mm f/4.3 Stellarvue astrograph, Canon Xti and a
            stack of 11x30s exposures.

            
The lower image
            is my first attempt at getting the comets spectrum. Here, a 150mm
            f/2.8 macro lens was used with a 15 degree wedge prism on the
            front to get some nice spectral lines in this object. That was
            a 5 second exposure.



            
 Click
            here for a larger 1290 tall image


            
Field here
            is about 1.5 x 2 degrees



            
 Click
            here for a larger 1290 tall image


            
Field here
            is about 1.5 x 2 degrees


Lens:  Stellarvue SV80s Astrograph
Platform:  Meade LDX5
Camera: Canon XTI
Exposure:  30s x 11 seconds  
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing  4/10, Transparency 4/10
Outside Temperature:  65F
Processing Tools:  Maxim DL, Photoshop CS2
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