Moon phase on April 30, 1975

Waning Gibbous, 82%
🌖 Waning Gibbous
Wednesday, April 30, 1975 · at noon (Brasília)
Illumination: 82% Age: 18.9 days Cycle: 64%
Home → Moon phase → April 30, 1975

On Wednesday, April 30, 1975 the Moon was in its waning gibbous phase, with 82% of its disk illuminated and an age of 18.9 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
Illumination82%
Moon age18.9 days
Day of the weekWednesday
Last new moonApril 11, 1975 at 13:39
Next full moonMay 25, 1975 at 02:50 (in 24.6 days)
Next new moonMay 11, 1975 at 04:04 (in 10.7 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.

SunApr 27Waning Gibbous, 99%99%Waning GibbousMonApr 28Waning Gibbous, 95%95%Waning GibbousTueApr 29Waning Gibbous, 89%89%Waning Gibbous
WedApr 30Waning Gibbous, 82%82%Waning Gibbous
ThuMay 1Waning Gibbous, 73%73%Waning GibbousFriMay 2Waning Gibbous, 63%63%Waning GibbousSatMay 3Last Quarter, 53%53%Last Quarter

← April 29, 1975 May 1, 1975 →

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 April 30, 1975 it had completed 64% of the cycle that began with the new moon on April 11, 1975.

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 30, 1975. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on April 30, 1975?

On April 30, 1975 the Moon was in its waning gibbous phase, with 82% 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: 18.9 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after April 30, 1975 falls on May 25, 1975 at 02:50 Brasília time.

When is the next new moon after that date?

The next new moon after April 30, 1975 falls on May 11, 1975 at 04:04 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.