The blue moon appears in the sky this week

science and technology

One of the most spectacular astronomical phenomena in the Earth's sky is the appearance of the "Blue Moon", a phenomenon called a full moon that appears for the second time in one month.

For those who want to see this blue moon, it is expected to appear on Saturday, and it will be shining in the night sky so that it does not need any special instruments, noting that it will not be in actual blue, it is just a name.

blue Moon

According to the British newspaper "Metro" on its official site, this happens very rare times, as the moon has a tropical cycle of 29 days, leading to a few blue moons every few years, and the month of January and March are good months for blue satellites, where Previously appeared in both months in 2018.

"What we call a season is winter, spring, summer, fall, usually three months, usually three full moons, but if the season has four full moons, the third moon can be called the blue moon," said astronomer Bruce McClure. .