no time for doubles

Received a CSAC email around 5 PM for Toronto...

Favorable observing conditions at Toronto
Opportunities to observe at: (Clouds/Trans/Seeing)
03-01 @ Hour 21 for 4 hours (0%/Average/Average)

I wasn't surprised. I saw it clearing in the afternoon.

But the Moon was full. I had a mountain of stuff to do. I have to teach tomorrow (well, do a demo; but it's in the morning). Early start required. So... no time to chase double stars...