Moon phase on November 11, 2021

First Quarter, 43%
🌓 First Quarter
Thursday, November 11, 2021 · at noon (Brasília)
Illumination: 43% Age: 6.7 days Cycle: 23%

On Thursday, November 11, 2021 the Moon was in its first quarter phase, with 43% of its disk illuminated and an age of 6.7 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
Illumination43%
Moon age6.7 days
Day of the weekThursday
Last new moonNovember 4, 2021 at 18:15
Next full moonNovember 19, 2021 at 05:58 (in 7.7 days)
Next new moonDecember 4, 2021 at 04:43 (in 22.7 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.

← November 10, 2021 November 12, 2021 →

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 November 11, 2021 it had completed 23% of the cycle that began with the new moon on November 4, 2021.

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 November 11, 2021. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on November 11, 2021?

On November 11, 2021 the Moon was in its first quarter phase, with 43% 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: 6.7 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after November 11, 2021 falls on November 19, 2021 at 05:58 Brasília time.

When is the next new moon after that date?

The next new moon after November 11, 2021 falls on December 4, 2021 at 04:43 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.