At "half Moon" we see half of the Moon's hemisphere that is facing Earth.
But "half Moon" isn't what astronomers call that phase of the Moon.
It is called a "quarter Moon" phase.
That's because the Moon has completed one quarter (at First Quarter phase) or three quarters (at Third Quarter phase) of an orbit around the Earth since new Moon.
(Another possible reason is that we see a quarter of the total surface of the Moon at these phases.)
The moon phase between waxing crescent and first quarter is called waxing gibbous. In this phase, the moon is more than half illuminated but less than full.
The phase where the moon looks like a semicircle is called the "first quarter" or "last quarter," depending on its position in the lunar cycle. In the first quarter phase, half of the moon's surface is illuminated and visible from Earth, appearing as a right half. In the last quarter phase, the left half is illuminated. Both phases showcase a semi-circular appearance of the moon.
Waxing crescent.
The full moon phase comes after the first quarter moon. The full moon appears as a complete circle in the sky, with the sun illuminating the entire side facing Earth.
Neap tides are the ones that coincide with the Moon's First Quarter and Third Quarter.
The waxing crescent is the first phase after the new moon.
We see a Half Moon illuminated. The name of this phase is called Last Quarter. First Quarter is 1 week before a Full Moon.
We see a Half Moon illuminated. The name of this phase is called Last Quarter. First Quarter is 1 week before a Full Moon.
The moon phase between waxing crescent and first quarter is called waxing gibbous. In this phase, the moon is more than half illuminated but less than full.
It takes about 7 days for the Moon to transition from a new moon phase to the first quarter moon phase.
New moon, first quarter, full moon and third quarter
first or last quarter
New moon."New Moon" follows "waning crescent"New Moon
After a week from new moon, you'll see a half moon. This is more correctly called the First Quarter phase of the Moon.
Full Moon -> Waxing gibbous phase -> First quarter phase -> Waxing crescent phase -> New moon -> Waning crescent phase -> Last quarter phase -> Wanning gibbous phase -> Full Moon
The phase of the moon is called a first quarter or last quarter moon when it appears as a semi-circle. This occurs when the moon is at a 90-degree angle relative to the Earth and the Sun, resulting in half of the illuminated side facing Earth.
A half moon refers to both the first quarter and the third quarter moon phase.