Although the Uk has been under high pressure for the last couple of weeks, the clear skies have been accompanied by a cold northerly airflow and large diurnal temperature range. From my urban backyard this has mostly meant disappointingly poor seeing.
After a long look at the moon last night, where despite 14" of aperture I only had a fleeting glimpse of the central crater in Plato, I had a look at Algieba and realised I might just be able to get on to Omega Leonis (the view to the south is very restricted). It was easy enough hopping across with the finderscope, but with the coma corrector and medium power I could only see a fuzzy elongation and, defocused, it was apparent the star was already sliding behind the neighbour's chimney. Switching the CC out for a 2x barlow was a big improvement - a steady, wide split that had me double checking the separation - not the view of a sub-arcseconder I'm accustomed to from smaller scopes!
I made a quick estimate of PA at 150o; 30 degrees out but it was behind the chimney before I'd properly established the direction of drift. One I'll be returning to.