This means though it only takes 29.5 days to orbit Earth and complete a full cycle from full moon to full moon, because the moon's orbit is angled at five degrees, it often slips above or below Earth's shadow.
Lunar eclipses only happen when the moon is full. This is actually below the average of lunar eclipses for a year, which is three.
November's eclipse won't be total, but as 99.1 percent of the moon will be in Earth's shadow, it is considered 'almost total.' NASAīecause Blood Moons are usually associated with total lunar eclipses, we can easily predict how many Blood Moons Earth will experience each year For instance, in 2022 the Earth will see two total lunar eclipses, one on May 15, the other on November 7.