Moon phase on July 21, 1969

First Quarter, 46%
🌓 First Quarter
Monday, July 21, 1969 · at noon (Brasília)
Illumination: 46% Age: 7.0 days Cycle: 24%
Home → Moon phase → July 21, 1969

On Monday, July 21, 1969 the Moon was in its first quarter phase, with 46% of its disk illuminated and an age of 7.0 days since the last new moon. Half of the disk is lit, about a week after the new moon. The Moon is easy to see in the early evening and sets around midnight.

Moon data for this date

Moon at noon Brasília time (UTC-3)
Phase🌓 First Quarter
Illumination46%
Moon age7.0 days
Day of the weekMonday
Last new moonJuly 14, 1969 at 11:11
Next full moonJuly 28, 1969 at 23:45 (in 7.5 days)
Next new moonAugust 13, 1969 at 02:16 (in 22.6 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.

FriJul 18Waxing Crescent, 17%17%Waxing CrescentSatJul 19Waxing Crescent, 26%26%Waxing CrescentSunJul 20Waxing Crescent, 36%36%Waxing Crescent
MonJul 21First Quarter, 46%46%First Quarter
TueJul 22First Quarter, 57%57%First QuarterWedJul 23Waxing Gibbous, 67%67%Waxing GibbousThuJul 24Waxing Gibbous, 76%76%Waxing Gibbous

← July 20, 1969 July 22, 1969 →

About the first quarter

Half of the disk is lit, about a week after the new moon. The Moon is easy to see in the early evening and sets around midnight. The phase name comes from the Moon's position in its 29.53-day cycle: on July 21, 1969 it had completed 24% 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 21, 1969. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on July 21, 1969?

On July 21, 1969 the Moon was in its first quarter phase, with 46% 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: 7.0 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after July 21, 1969 falls on July 28, 1969 at 23:45 Brasília time.

When is the next new moon after that date?

The next new moon after July 21, 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.