The New Moon is the lunar phase that occurs when the Moon lies between Earth and the Sun, and is therefore in conjunction with the Sun as seen from Earth. At this time, the illuminated half of the Moon faces directly toward the Sun, and the dark portion of the Moon faces directly toward Earth, so that the Moon is invisible as seen from Earth.

A solar eclipse occurs when the ecliptic longitude of the Sun and the moon's path in celestial sphere are extremely close or overlapps, thereby the outline of the new moon can be seen as a white light ring.

The time interval between New Moons is about 29.5 days. According to Feng shui teaching, it is said that if you make two to ten wishes within eight hours right after the Moon gets into the New Moon phase, your wishes will be fulfilled.