Comet C/2023 A3 Tsuchinshan-ATLAS
in the evening sky
10/13/24

 
 Now
            with an 80% moon in the eastern sky, it is still amazing we can
            see this comet easily naked eye in the western sky, and with
            about 25 degrees of tail. This shot is a big stack of 5 second
            exposures totalling 6 minutes of integration with the RASA 8"
            f/2. The sky was very bright from both twilight and back scatter
            from the full moon glow. Note the narrow anti tail on the front
            of the comet, which is now at orbital plane crossing. This is
            the comet illuminated thin dust in the comets orbit projected
            onto the head. This field is only 3 degrees wide, and of course
            only gets the front of the comet.

            
Select an image size for a larger view:

1400 x 1200
            


Lens:  8 f/2 RASA Schmidt
Camera: ASI2600 MC
Platform:  Ioptron GEM45
Exposure:  6 mins
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing  4/10, Transparency 5/10
Outside Temperature:  65F
Processing Tools:  Maxim DL, Photoshop CS2
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