4 ms·

I figure someone at Google thought it was funny to say that blue moons occur approximately every 1 / (1.16699016 × 10-8 hertz) = 992 days. http://www.wolframal

• SEMW 10y ago
  > I figure someone at Google thought it was funny to say that blue moons occur approximately every ... 992 days. Not sure if your comment's implying it's a random number picked for amusement? That figure (2.7 years) seems about right to me -- the frequency of a blue moon is necessarily the same as the frequency that a lunisolar calendar has to add a leap month, which is every 2 or 3 years. I don't see any reason to doubt Google's number.
  • spicyj 10y ago
    Well, it is funny even if true. I searched quickly and found a page that claimed there were 15 blue moons in 20 years so I wasn't sure.