Comet  45P/Honda-Mrkos-Pajdusakova
in the Evening sky
March 19, 2017

 
 This
            may be the last image of this comet I try to take. Now a very
            low surface brightness object in Leo, this very diffuse object
            is situated here in a horde of faint galaxies to magnitude 19.
            This was a very long set of exposures, totalling 2 hours of integration
            time. Luminance data was 90 minutes, and the RGB data on what
            is at best a colorless comet with the faintest of a teal hue
            was 30 minutes binned 2x2.
 

            
 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:  120m
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing  2/10, Transparency 8/10
Outside Temperature:  50F
Processing Tools:  Maxim DL, Photoshop CS2
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