Moon phase on March 23, 1991

First Quarter, 49%
🌓 First Quarter
Saturday, March 23, 1991 · at noon (Brasília)
Illumination: 49% Age: 7.3 days Cycle: 25%
Home → Moon phase → March 23, 1991

On Saturday, March 23, 1991 the Moon was in its first quarter phase, with 49% of its disk illuminated and an age of 7.3 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
Illumination49%
Moon age7.3 days
Day of the weekSaturday
Last new moonMarch 16, 1991 at 05:11
Next full moonMarch 30, 1991 at 04:18 (in 6.7 days)
Next new moonApril 14, 1991 at 16:38 (in 22.2 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.

WedMar 20Waxing Crescent, 19%19%Waxing CrescentThuMar 21Waxing Crescent, 28%28%Waxing CrescentFriMar 22Waxing Crescent, 39%39%Waxing Crescent
SatMar 23First Quarter, 49%49%First Quarter
SunMar 24First Quarter, 60%60%First QuarterMonMar 25Waxing Gibbous, 70%70%Waxing GibbousTueMar 26Waxing Gibbous, 79%79%Waxing Gibbous

← March 22, 1991 March 24, 1991 →

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 March 23, 1991 it had completed 25% of the cycle that began with the new moon on March 16, 1991.

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 March 23, 1991. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on March 23, 1991?

On March 23, 1991 the Moon was in its first quarter phase, with 49% 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: 7.3 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after March 23, 1991 falls on March 30, 1991 at 04:18 Brasília time.

When is the next new moon after that date?

The next new moon after March 23, 1991 falls on April 14, 1991 at 16:38 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.