Hi Shaun,
The C11 will definitely show up the star. Mag 12 is quite doable in a C11. And the C11 should be able to slew to Pluto quite easily. If you have a video camera you can record for posterity. And be one of the select few who have seen a Pluto occultation. The last one was in 2012, and unlike this one had a 0.3 magnitude drop due to the faintness of the star. It was not discernable except with frame analysis. This one will be quite certain - blink it's gone, and if you are on the central line, gone for around a minute and a half (99 seconds).
It will be a great thing to see.
Regards,
Tony Barry
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