In Pictures: Rare super blue moon delights stargazers
The phenomenon will only happen once this year.
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A rare super blue moon has appeared over the UK.
Stargazers were treated to a phenomenon that will only happen once this year.
A blue moon is not named after the colour and instead refers to the second full moon in one calendar month.
Most months only have one full moon, so a second is quite a rare event, occurring approximately once every two or three years.
