Moon Calendar for May, 2009
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Friday, May 1, 2009 | First Quarter | 44.59% | π |
| Saturday, May 2, 2009 | First Quarter | 55.92% | π |
| Sunday, May 3, 2009 | First Quarter | 66.8% | π |
| Monday, May 4, 2009 | Waxing Gibbous | 76.7% | π |
| Tuesday, May 5, 2009 | Waxing Gibbous | 85.18% | π |
| Wednesday, May 6, 2009 | Waxing Gibbous | 91.93% | π |
| Thursday, May 7, 2009 | Full Moon | 96.69% | π |
| Friday, May 8, 2009 | Full Moon | 99.37% | π |
| Saturday, May 9, 2009 | Full Moon | 99.95% | π |
| Sunday, May 10, 2009 | Full Moon | 98.53% | π |
| Monday, May 11, 2009 | Waning Gibbous | 95.25% | π |
| Tuesday, May 12, 2009 | Waning Gibbous | 90.32% | π |
| Wednesday, May 13, 2009 | Waning Gibbous | 83.97% | π |
| Thursday, May 14, 2009 | Waning Gibbous | 76.44% | π |
| Friday, May 15, 2009 | Last Quarter | 67.97% | π |
| Saturday, May 16, 2009 | Last Quarter | 58.81% | π |
| Sunday, May 17, 2009 | Last Quarter | 49.21% | π |
| Monday, May 18, 2009 | Last Quarter | 39.44% | π |
| Tuesday, May 19, 2009 | Waning Crescent | 29.83% | π |
| Wednesday, May 20, 2009 | Waning Crescent | 20.77% | π |
| Thursday, May 21, 2009 | Waning Crescent | 12.72% | π |
| Friday, May 22, 2009 | Waning Crescent | 6.22% | π |
| Saturday, May 23, 2009 | New Moon | 1.83% | π |
| Sunday, May 24, 2009 | New Moon | 0.03% | π |
| Monday, May 25, 2009 | New Moon | 1.11% | π |
| Tuesday, May 26, 2009 | Waxing Crescent | 5.1% | π |
| Wednesday, May 27, 2009 | Waxing Crescent | 11.73% | π |
| Thursday, May 28, 2009 | Waxing Crescent | 20.48% | π |
| Friday, May 29, 2009 | Waxing Crescent | 30.69% | π |
| Saturday, May 30, 2009 | First Quarter | 41.68% | π |
| Sunday, May 31, 2009 | First Quarter | 52.81% | π |