Within as little as 10 minutes the movement of Pluto was noticable on enlarged frames. The frame size is about a quarter of a degree square. A red filter was used to penetrate the haze. At the time of the exposure the altitude of Pluto was some 20 degrees above the horizon.
Pollution is very severe here.
Note that the haze is more severe in the second frame. The limiting magnitude by naked eye is a little over 3, sometimes 4, in the Zenith and say 2 in the direction where Pluto at magnitude 14 was photographed. I will try again next year under more favourable conditions. I used a blue filter to enhance features on the planet. The moon right is Europa.