Moon phase on August 17, 2047

Waning Crescent, 15%
🌘 Waning Crescent
Saturday, August 17, 2047 · at noon (Brasília)
Illumination: 15% Age: 25.7 days Cycle: 87%

On Saturday, August 17, 2047 the Moon will be in its waning crescent phase, with 15% of its disk illuminated and an age of 25.7 days since the last new moon. Only a thin sliver is left, visible in the east shortly before dawn, as the cycle prepares to start over with the new moon.

Moon data for this date

Moon at noon Brasília time (UTC-3)
Phase🌘 Waning Crescent
Illumination15%
Moon age25.7 days
Day of the weekSaturday
Last new moonJuly 22, 2047 at 19:49
Next full moonSeptember 4, 2047 at 05:54 (in 17.7 days)
Next new moonAugust 21, 2047 at 06:16 (in 3.8 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.

← August 16, 2047 August 18, 2047 →

About the waning crescent

Only a thin sliver is left, visible in the east shortly before dawn, as the cycle prepares to start over with the new moon. The phase name comes from the Moon's position in its 29.53-day cycle: on August 17, 2047 it had completed 87% of the cycle that began with the new moon on July 22, 2047.

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 August 17, 2047. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on August 17, 2047?

On August 17, 2047 the Moon will be in its waning crescent phase, with 15% 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: 25.7 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after August 17, 2047 falls on September 4, 2047 at 05:54 Brasília time.

When is the next new moon after that date?

The next new moon after August 17, 2047 falls on August 21, 2047 at 06:16 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.