Moon phase on October 13, 1976

Waning Gibbous, 73%
🌖 Waning Gibbous
Wednesday, October 13, 1976 · at noon (Brasília)
Illumination: 73% Age: 19.8 days Cycle: 67%
Home → Moon phase → October 13, 1976

On Wednesday, October 13, 1976 the Moon was in its waning gibbous phase, with 73% of its disk illuminated and an age of 19.8 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
Illumination73%
Moon age19.8 days
Day of the weekWednesday
Last new moonSeptember 23, 1976 at 16:55
Next full moonNovember 6, 1976 at 20:15 (in 24.3 days)
Next new moonOctober 23, 1976 at 02:10 (in 9.6 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.

SunOct 10Waning Gibbous, 95%95%Waning GibbousMonOct 11Waning Gibbous, 89%89%Waning GibbousTueOct 12Waning Gibbous, 82%82%Waning Gibbous
WedOct 13Waning Gibbous, 73%73%Waning Gibbous
ThuOct 14Waning Gibbous, 63%63%Waning GibbousFriOct 15Last Quarter, 53%53%Last QuarterSatOct 16Last Quarter, 42%42%Last Quarter

← October 12, 1976 October 14, 1976 →

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 October 13, 1976 it had completed 67% of the cycle that began with the new moon on September 23, 1976.

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 October 13, 1976. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on October 13, 1976?

On October 13, 1976 the Moon was in its waning gibbous phase, with 73% 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: 19.8 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after October 13, 1976 falls on November 6, 1976 at 20:15 Brasília time.

When is the next new moon after that date?

The next new moon after October 13, 1976 falls on October 23, 1976 at 02:10 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.