The phrase â€˜Once in a Blue Moonâ€™ will finally come true when on October 31 when a beautiful Blue Moon will be seen in the sky. This will be a dazzling sight in its night sky. It will be visible on the night of October 31 at around 8:19 PM. This year October as two full Moons out of which the second moon is usually anointed as Blue Moon. The occurrence of the first full moon took place around October 1 and 2 while the second moon is poised to take place in a few days.
This sort of second full moon occurs after every 30 months. The casual reason behind this phenomenon is that lunar month has a duration of 29 days, 12 hours, 44 minutes and 33 seconds and that the first moon should occur on the first and second day of the month.
The moon appears blue in color due to the dust and smoke particles present in the Earthâ€™s atmosphere and in the sky.