Moon phase on December 20, 1993

First Quarter, 48%
🌓 First Quarter
Monday, December 20, 1993 · at noon (Brasília)
Illumination: 48% Age: 7.2 days Cycle: 24%
Home → Moon phase → December 20, 1993

On Monday, December 20, 1993 the Moon was in its first quarter phase, with 48% of its disk illuminated and an age of 7.2 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
Illumination48%
Moon age7.2 days
Day of the weekMonday
Last new moonDecember 13, 1993 at 07:26
Next full moonDecember 28, 1993 at 21:05 (in 8.4 days)
Next new moonJanuary 11, 1994 at 21:10 (in 22.4 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.

FriDec 17Waxing Crescent, 19%19%Waxing CrescentSatDec 18Waxing Crescent, 27%27%Waxing CrescentSunDec 19Waxing Crescent, 37%37%Waxing Crescent
MonDec 20First Quarter, 48%48%First Quarter
TueDec 21First Quarter, 58%58%First QuarterWedDec 22Waxing Gibbous, 69%69%Waxing GibbousThuDec 23Waxing Gibbous, 78%78%Waxing Gibbous

← December 19, 1993 December 21, 1993 →

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 December 20, 1993 it had completed 24% of the cycle that began with the new moon on December 13, 1993.

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 December 20, 1993. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on December 20, 1993?

On December 20, 1993 the Moon was in its first quarter phase, with 48% 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: 7.2 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after December 20, 1993 falls on December 28, 1993 at 21:05 Brasília time.

When is the next new moon after that date?

The next new moon after December 20, 1993 falls on January 11, 1994 at 21:10 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.