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What is a Blue Moon?
- blue moon is what people call the second of two full Moons that appear during the same month.
- second full Moon can appear within the same month because full Moons occur about every 29.5 days.
- so if a full Moon occurs in the first day or two day of a month, except for February, a second full Moon can occur during one of the last days of that month as well.
- for example; Tuesday 2nd January and Sunday 31st January = Blue Moon.
- it doesn’t actually look blue.
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Who says “Blue Moon”?
- Well,…. mistaken definition in the March 1946 edition of Sky and Telescope magazine claimed the blue moon fell on the second full moon of the calendar month – this mistake caused widespread misunderstanding until it was finally corrected in 1999.
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When is the next Blue Moon?
- 2026
– Friday 1st & Saturday 30th May 2026
o - 2028
– Friday 1st & Sunday 31st December 2028
o - 2029
– Monday 1st & Monday 29th January 2029
– Thursday 1st & Thursday 29th March 2029
o - 2031
– Monday 1st & Tuesday 30th September 2031
– Wednesday 1st & Wednesday 29th October 2031o
o - 2034
– Saturday 1st & 30th July 2034
o - 2037
– Thursday 1st & Saturday 31st January 2037
– Sunday 1st & Tuesday 31st March 2037
o - 2039
– Saturday 1st & Monday 31st October 2039
– Tuesday 1st & Wednesday 30th November 2039
– Thursday 1st & Thursday 29th December 2039
o - 2042
– Friday 1st & Saturday 30th August 2042
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