On Wednesday, September 12, 1990 the Moon was in its last quarter phase, with 40% of its disk illuminated and an age of 23.1 days since the last new moon. Half of the disk is lit again, on the opposite side from the first quarter. The Moon rises around midnight and is visible in the morning.
Moon data for this date
| Phase | 🌗 Last Quarter |
|---|---|
| Illumination | 40% |
| Moon age | 23.1 days |
| Day of the week | Wednesday |
| Last new moon | August 20, 1990 at 09:38 |
| Next full moon | October 4, 1990 at 09:01 (in 21.9 days) |
| Next new moon | September 18, 1990 at 21:46 (in 6.4 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.
← September 11, 1990 September 13, 1990 →
About the last quarter
Half of the disk is lit again, on the opposite side from the first quarter. The Moon rises around midnight and is visible in the morning. The phase name comes from the Moon's position in its 29.53-day cycle: on September 12, 1990 it had completed 78% of the cycle that began with the new moon on August 20, 1990.
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 September 12, 1990. For sun times, check sunrise and sunset.