Once in a … Blue Moon

Once in a blue moon: Rare phenomenon of two full moons within a calendar month happens TONIGHT

  • ‘Blue moon’ refers to when a full moon occurs twice in a calendar month – not the colour of the Earth’s satellite 
  • The moon does not appear blue, but is its usual silvery grey colour, so it looks like a regular full moon 
  • The lunar event is already visible across the world but will be at its peak tonight 
  • It’s the first blue moon since August 2012 and there won’t be another for three years, until January 31, 2018

From shots of statues reaching out to grasp a celestial disc to images of iconic landmarks, stargazers have captured the rare ‘blue moon’ on camera.

The astronomical phenomenon doesn’t transform the Earth’s satellite into a dazzling sapphire, but instead refers to when a full moon occurs twice within a calendar month.

While the lunar event is already underway, it will be at its most impressive tonight and will be the first to occur since 2012.

Read more: http://www.dailymail.co.uk/sciencetech/article-3179917/Blue-moon-horizon-Rare-phenomenon-two-moons-calendar-month-light-skies-Friday.html#ixzz3hWytQ6Np
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