Comet 46P/Wirtanen
in the evening sky
December 3, 2018

 
 This
            comet is becoming too large to fit in the field of the 10 inch.
            Such a problem to have! This is a deep 90 minute exposure of
            the comet with the 10 inch f/3.9 Orion Astrograph.
 

            
 Click
            here for a larger 1290 sized image


            
Field here
            is about 3 x2 degrees


Lens:  10" f/3.9 Astrograph with Baader MPCC coma corrector
Platform:  Astrophysics AP1200
Camera: SBIG ST10xme
Exposure:  90m
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing  7/10, Transparency 8/10
Outside Temperature:  30F
Processing Tools:  Maxim DL, Photoshop CS2
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