Explain the phenomenon of Black Moon

On September 30, a phenomenon called Black Moon will appear around the world. However, it is not an interesting thing for you to observe, since this day is moonless.

The moonless day , also known as the new Moon phase , is the time when the Moon lies between the Earth and the Sun, making the Moon's night invisible to the Moon. At this time the Moon was in the hemisphere during the day and sunk in the glare of the Sun.

Did the black moon really turn black in the sky?(Photo: Tim Laman).

When the Moon in the new Moon phase lies in line with the Sun and Earth, eclipse will occur because the Moon obscures the light from the Sun reaching the Earth.

Usually every lunar month, or exactly 29.5 days, will happen again the new Moon phase. This also corresponds to a calendar month. However, the solar calendar and the lunar calendar have different lengths, so there will be two new Moon times in the same calendar month.

The occurrence of two new Moon occurrences in the same calendar month is called the Black Moon , which happens every 32 years. Similar to the two full moons that occur in the same calendar month are called Blue Moon.

Thus, the Black Moon is the phenomenon of two new Moon times (no moon) occurring in the same calendar month. It has no effect on natural disasters or events and those who observe the sky cannot observe anything from this phenomenon.

In addition, the Black Moon is also a starting point for cultural festivals in many places. On October 2, when the first crescent rose in RoshHashanah, the Jewish New Year will begin. And the crescent moon on October 3 also marks the first month in the Muharram calendar of Muslims.