Here is an image of Neptune taken last night with the 620 mm cassegrain of Astroqueyras, where I'm participating to a one week mission with belgian club Olympus Mons (Giuseppe Monachino being the chief of mission). Conditions were briefly good but deteriorated later, preventing me from taking more images.
The image shows a bright spot at predicted position of long. 319° (thanks Marc !). We will have another chance to catch it on thursday evening.