Moon phase on April 13, 1966

Last Quarter, 48%
🌗 Last Quarter
Wednesday, April 13, 1966 · at noon (Brasília)
Illumination: 48% Age: 22.4 days Cycle: 76%
Home → Moon phase → April 13, 1966

On Wednesday, April 13, 1966 the Moon was in its last quarter phase, with 48% of its disk illuminated and an age of 22.4 days since the last new moon. Half of the disk is lit again, on the opposite side from the first quarter. The Moon rises around midnight and is visible in the morning.

Moon data for this date

Moon at noon Brasília time (UTC-3)
Phase🌗 Last Quarter
Illumination48%
Moon age22.4 days
Day of the weekWednesday
Last new moonMarch 22, 1966 at 01:46
Next full moonMay 4, 1966 at 18:00 (in 21.3 days)
Next new moonApril 20, 1966 at 17:35 (in 7.2 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.

SunApr 10Waning Gibbous, 78%78%Waning GibbousMonApr 11Waning Gibbous, 69%69%Waning GibbousTueApr 12Last Quarter, 59%59%Last Quarter
WedApr 13Last Quarter, 48%48%Last Quarter
ThuApr 14Waning Crescent, 38%38%Waning CrescentFriApr 15Waning Crescent, 28%28%Waning CrescentSatApr 16Waning Crescent, 19%19%Waning Crescent

← April 12, 1966 April 14, 1966 →

About the last quarter

Half of the disk is lit again, on the opposite side from the first quarter. The Moon rises around midnight and is visible in the morning. The phase name comes from the Moon's position in its 29.53-day cycle: on April 13, 1966 it had completed 76% of the cycle that began with the new moon on March 22, 1966.

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 April 13, 1966. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on April 13, 1966?

On April 13, 1966 the Moon was in its last 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: 22.4 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after April 13, 1966 falls on May 4, 1966 at 18:00 Brasília time.

When is the next new moon after that date?

The next new moon after April 13, 1966 falls on April 20, 1966 at 17:35 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.