Blue Moon, Bishop’s Ring, Cloud Iridescence = By Budapest
Thursday, May 31st, 2007Tonight is the second full moon of the month. In 1946 Sky & Telescope magazine mistakenly created the myth that this moon is called a blue moon. They have recently corrected that to say what the Maine Farmer’s Almanac really said – that the third full moon in a season with four full moons is called blue. The almanac picked that nominalism simply because they needed an extra name. After all, the monthly full moons all had a name:
- January – Wolf moon
- February – Ice moon
- March – Storm moon
- April – Growing/Flower moon
- May – Hare moon
- June – Mead moon
- July – Hay moon
- August – Corn moon
- September – Harvest moon
- October – Â Hunter’s moon
- November – Snow moon
- December – Winter moon
But sometimes the moon really appears blue, like on May 20-21 in Hungary when fine dust from the Sahara desert blew over the country. Ãgnes Kiricsi, whose Hungarian/English blog is Atmospheric Optics (not to be confused with the UK’s Atmospheric Optics website), captured the scene over Budapest. Her friend, Noli, captured an equally rare event with the same cause, a solar Bishop’s ring as well as an iridescent cloud (which has nothing to do with Saharan sands, but is very pretty).