Blue moons (was Halloweenie things)

[Aleks]

--- In HPFGU-OTChatter at y..., "David" <dfrankiswork at n...> wrote:
> Rachel wrote:
> 
> > Tonight is the first full moon on Halloween in 46 years.  
> > AND...it's a Blue Moon.  
> 
> What is a Blue Moon in this context?  I thought it was when 
> atmospheric conditions made the moon look blue - and therefore 
> couldn't be predicted in advance?
> 
> Thank you for the monster card
> 
> David, the grouchy old anti-Trick-or-Treater

A blue moon is the second full moon in one calendar month ie/ 1st full
moon at beginning of October so the one last night was a 'blue' moon.
Doesn't happen very often (oI think about once a year) hence the
phrase - 'once in a blue moon.'
Judging on messages on other lists I'm not the only person who was
thinking 'poor Remus' last night :)

Aleks