Moon phase on September 23, 2029

Full Moon, 100%
🌕 Full Moon
Sunday, September 23, 2029 · at noon (Brasília)
Illumination: 100% Age: 15.2 days Cycle: 52%

On Sunday, September 23, 2029 the Moon will be in its full moon phase, with 100% of its disk illuminated and an age of 15.2 days since the last new moon. The whole disk is lit: the Moon rises as the Sun sets and stays up all night. It is the brightest and most photographed phase.

Moon data for this date

Moon at noon Brasília time (UTC-3)
Phase🌕 Full Moon
Illumination100%
Moon age15.2 days
Day of the weekSunday
Last new moonSeptember 8, 2029 at 07:45
Next full moonOctober 22, 2029 at 06:28 (in 28.8 days)
Next new moonOctober 7, 2029 at 16:15 (in 14.2 days)

The Moon on the surrounding days

Compare the phase and illumination over the three days before and after. Click a day to open its page.

← September 22, 2029 September 24, 2029 →

About the full moon

The whole disk is lit: the Moon rises as the Sun sets and stays up all night. It is the brightest and most photographed phase. The phase name comes from the Moon's position in its 29.53-day cycle: on September 23, 2029 it had completed 52% of the cycle that began with the new moon on September 8, 2029.

Looking for another date, such as a birthday? Use the Moon phase on the day I was born tool, see the Moon phase today page with the lunar calendar, or find the day of the week of September 23, 2029. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on September 23, 2029?

On September 23, 2029 the Moon will be in its full moon phase, with 100% of the disk lit (calculated at noon Brasília time).

How old is the Moon on that date?

The age is the time since the last new moon: 15.2 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after September 23, 2029 falls on October 22, 2029 at 06:28 Brasília time.

When is the next new moon after that date?

The next new moon after September 23, 2029 falls on October 7, 2029 at 16:15 Brasília time.

How is the Moon phase calculated?

With Jean Meeus's astronomical formulas for the instants of new, quarter and full moon. The age comes from the time since the last new moon and the illumination is (1 − cos(2π × cycle fraction)) / 2.

Is the phase the same everywhere in the world?

Yes, the phase and the illuminated percentage are the same across the planet at any given instant. Only the orientation changes: in the southern hemisphere a waxing Moon is lit on the left, in the northern one on the right.