Moon phase on April 28, 1966

First Quarter, 54%
🌓 First Quarter
Thursday, April 28, 1966 · at noon (Brasília)
Illumination: 54% Age: 7.8 days Cycle: 26%
Home → Moon phase → April 28, 1966

On Thursday, April 28, 1966 the Moon was in its first quarter phase, with 54% of its disk illuminated and an age of 7.8 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
Illumination54%
Moon age7.8 days
Day of the weekThursday
Last new moonApril 20, 1966 at 17:35
Next full moonMay 4, 1966 at 18:00 (in 6.3 days)
Next new moonMay 20, 1966 at 06:42 (in 21.8 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.

MonApr 25Waxing Crescent, 24%24%Waxing CrescentTueApr 26Waxing Crescent, 33%33%Waxing CrescentWedApr 27First Quarter, 43%43%First Quarter
ThuApr 28First Quarter, 54%54%First Quarter
FriApr 29Waxing Gibbous, 64%64%Waxing GibbousSatApr 30Waxing Gibbous, 74%74%Waxing GibbousSunMay 1Waxing Gibbous, 83%83%Waxing Gibbous

← April 27, 1966 April 29, 1966 →

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 April 28, 1966 it had completed 26% of the cycle that began with the new moon on April 20, 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 28, 1966. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on April 28, 1966?

On April 28, 1966 the Moon was in its first quarter phase, with 54% 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: 7.8 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after April 28, 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 28, 1966 falls on May 20, 1966 at 06:42 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.