Rupert - sorry I can't tell if the blue moon comment is a joke or not, so forgive me if it is and I am telling you something you already know - a blue moon is traditionally the second full moon in one month. Usually there is only one full moon a month but the lunar calendar can keep us guessing and sometimes in 31 days there are two.
In the Wiccan Calendar some believe that it is two full moons within the same "astrological" sign.
I grew up thinking that a "blue" moon was when the moon was just sad and needed to be cheered up :)
LOL Rupe - that's how the figure of speech came about - it is a rare occurance - I don't even know if it happens once a year or not?
Eilan - so am I - but listening to the forecast for this evening - I may not get to see it.
Back in August, there was another Lunar eclipse. My neighbor and I were up at 3 am to watch it but unfortunately, as it reached total eclipse, the clouds took over and we couldn't see it. I was really looking forward to this one since I didn't have to be up at ungodly hours to see it.....Oh, well - I may have to wait until 2010