Because the position of the moon, earth, and sun are not in the same exact place every month. This means they are a rare occurrence and only happen when the moon, earth and sun are in exact alignment with the earth.
Solar and lunar eclipses don't occur every month because the orbits of the Earth and the Moon are tilted relative to each other. Eclipses can only happen when the Sun, Earth, and Moon align perfectly, which occurs during specific phases of the Moon (new and full). This alignment happens only a few times a year, resulting in a limited number of eclipses rather than one every month.
A lunar eclipse can occur multiple times a year, but the frequency can vary. On average, there are about two to four lunar eclipses each year. Lunar eclipses can be partial, total, or penumbral, with total eclipses being less common.
Because the moon phase is irregular
There are two main types of eclipses: solar and lunar. Lunar eclipses occur every 6 months. Solar eclipses occur 2-5 times per year. Eclipses can be partial or total. Partial eclipse covers only part of the sun or moon, while total covers the full entity.
The Earth orbits the Sun in a plane that we call the "ecliptic". If the Moon orbited the Earth in that same plane, we would experience eclipses every month. But the plane of the Moon's orbit is about 5 degrees tilted from the ecliptic, and so we only see eclipses at the "nodes" when the Moon's orbital plane crosses the ecliptic at the new or full moons.
The moon would have to be on a flat plane instead of being on a tilt.
Solar and lunar eclipses don't occur every month because the orbits of the Earth and the Moon are tilted relative to each other. Eclipses can only happen when the Sun, Earth, and Moon align perfectly, which occurs during specific phases of the Moon (new and full). This alignment happens only a few times a year, resulting in a limited number of eclipses rather than one every month.
We do. its not a month though. its every 29.5 days
Every year
Eclipses don't happen every month because the Moon's orbit around Earth is tilted, so it doesn't always line up perfectly with the Sun and Earth. This alignment is necessary for an eclipse to occur.
A lunar eclipse can occur multiple times a year, but the frequency can vary. On average, there are about two to four lunar eclipses each year. Lunar eclipses can be partial, total, or penumbral, with total eclipses being less common.
We don't experience an eclipse every month because the Moon's orbit is tilted about 5 degrees relative to Earth's orbit around the Sun. This tilt means that the Sun, Earth, and Moon do not always align perfectly during the new moon (for solar eclipses) or full moon (for lunar eclipses). Eclipses only occur when the Sun, Earth, and Moon are in a straight line, which happens only a few times a year at specific points in their orbits called nodes. Therefore, while we have new and full moons every month, eclipses are much less frequent.
Because the moon phase is irregular
Eclipses don't occur every month because the Moon's orbit is tilted about 5 degrees relative to Earth's orbit around the Sun. This tilt means that the Earth, Moon, and Sun do not always align perfectly, which is necessary for an eclipse to happen. Eclipses only occur during specific alignments, known as syzygy, which happens roughly two to five times a year. Thus, the combination of the Moon's orbit and the timing of these alignments leads to the infrequent occurrence of eclipses.
There are two main types of eclipses: solar and lunar. Lunar eclipses occur every 6 months. Solar eclipses occur 2-5 times per year. Eclipses can be partial or total. Partial eclipse covers only part of the sun or moon, while total covers the full entity.
The Earth orbits the Sun in a plane that we call the "ecliptic". If the Moon orbited the Earth in that same plane, we would experience eclipses every month. But the plane of the Moon's orbit is about 5 degrees tilted from the ecliptic, and so we only see eclipses at the "nodes" when the Moon's orbital plane crosses the ecliptic at the new or full moons.
The Moon's orbit is at an angle to the orbit of the Earth around the Sun so most often the full/new moon is 'above' or 'below' the line directly from the Sun to the Earth so lunar/solar eclipses do not occur every month.