On Thursday, September 18, 1997 the Moon was in its waning gibbous phase, with 97% of its disk illuminated and an age of 16.6 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
| Phase | 🌖 Waning Gibbous |
|---|---|
| Illumination | 97% |
| Moon age | 16.6 days |
| Day of the week | Thursday |
| Last new moon | September 1, 1997 at 20:52 |
| Next full moon | October 16, 1997 at 01:46 (in 27.5 days) |
| Next new moon | October 1, 1997 at 13:52 (in 13.1 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 17, 1997 September 19, 1997 →
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 September 18, 1997 it had completed 56% of the cycle that began with the new moon on September 1, 1997.
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 18, 1997. For sun times, check sunrise and sunset.