Moon phase on February 12, 2039

Waning Gibbous, 81%
🌖 Waning Gibbous
Saturday, February 12, 2039 · at noon (Brasília)
Illumination: 81% Age: 19.1 days Cycle: 64%

On Saturday, February 12, 2039 the Moon will be in its waning gibbous phase, with 81% of its disk illuminated and an age of 19.1 days since the last new moon. The lit part starts to shrink. The Moon rises a few hours after dusk and is still in the sky when day breaks.

Moon data for this date

Moon at noon Brasília time (UTC-3)
Phase🌖 Waning Gibbous
Illumination81%
Moon age19.1 days
Day of the weekSaturday
Last new moonJanuary 24, 2039 at 10:37
Next full moonMarch 10, 2039 at 13:35 (in 26.1 days)
Next new moonFebruary 23, 2039 at 00:18 (in 10.5 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.

← February 11, 2039 February 13, 2039 →

About the waning gibbous

The lit part starts to shrink. The Moon rises a few hours after dusk and is still in the sky when day breaks. The phase name comes from the Moon's position in its 29.53-day cycle: on February 12, 2039 it had completed 64% of the cycle that began with the new moon on January 24, 2039.

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 February 12, 2039. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on February 12, 2039?

On February 12, 2039 the Moon will be in its waning gibbous phase, with 81% 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: 19.1 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after February 12, 2039 falls on March 10, 2039 at 13:35 Brasília time.

When is the next new moon after that date?

The next new moon after February 12, 2039 falls on February 23, 2039 at 00:18 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.