On Saturday, August 21, 1999 the Moon was in its waxing gibbous phase, with 78% of its disk illuminated and an age of 10.2 days since the last new moon. More than half of the disk is lit and the Moon already shows up in the afternoon. It stays visible most of the night, until the small hours.
Moon data for this date
| Phase | 🌔 Waxing Gibbous |
|---|---|
| Illumination | 78% |
| Moon age | 10.2 days |
| Day of the week | Saturday |
| Last new moon | August 11, 1999 at 08:08 |
| Next full moon | August 26, 1999 at 20:48 (in 5.4 days) |
| Next new moon | September 9, 1999 at 19:02 (in 19.3 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.
← August 20, 1999 August 22, 1999 →
About the waxing gibbous
More than half of the disk is lit and the Moon already shows up in the afternoon. It stays visible most of the night, until the small hours. The phase name comes from the Moon's position in its 29.53-day cycle: on August 21, 1999 it had completed 34% of the cycle that began with the new moon on August 11, 1999.
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 August 21, 1999. For sun times, check sunrise and sunset.