Moon phase on July 31, 1969

Waning Gibbous, 95%
🌖 Waning Gibbous
Thursday, July 31, 1969 · at noon (Brasília)
Illumination: 95% Age: 17.0 days Cycle: 57%
Home → Moon phase → July 31, 1969

On Thursday, July 31, 1969 the Moon was in its waning gibbous phase, with 95% of its disk illuminated and an age of 17.0 days since the last new moon. The lit part starts to shrink. The Moon rises a few hours after dusk and is still in the sky when day breaks.

Moon data for this date

Moon at noon Brasília time (UTC-3)
Phase🌖 Waning Gibbous
Illumination95%
Moon age17.0 days
Day of the weekThursday
Last new moonJuly 14, 1969 at 11:11
Next full moonAugust 27, 1969 at 07:32 (in 26.8 days)
Next new moonAugust 13, 1969 at 02:16 (in 12.6 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.

MonJul 28Full Moon, 99%99%Full MoonTueJul 29Full Moon, 100%100%Full MoonWedJul 30Waning Gibbous, 98%98%Waning Gibbous
ThuJul 31Waning Gibbous, 95%95%Waning Gibbous
FriAug 1Waning Gibbous, 89%89%Waning GibbousSatAug 2Waning Gibbous, 81%81%Waning GibbousSunAug 3Waning Gibbous, 72%72%Waning Gibbous

← July 30, 1969 August 1, 1969 →

About the waning gibbous

The lit part starts to shrink. The Moon rises a few hours after dusk and is still in the sky when day breaks. The phase name comes from the Moon's position in its 29.53-day cycle: on July 31, 1969 it had completed 57% of the cycle that began with the new moon on July 14, 1969.

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 July 31, 1969. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on July 31, 1969?

On July 31, 1969 the Moon was in its waning gibbous phase, with 95% 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: 17.0 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after July 31, 1969 falls on August 27, 1969 at 07:32 Brasília time.

When is the next new moon after that date?

The next new moon after July 31, 1969 falls on August 13, 1969 at 02:16 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.