Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 89.93% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 82.95% | π |
| Monday, May 3, 2010 | Waning Gibbous | 74.84% | π |
| Tuesday, May 4, 2010 | Last Quarter | 65.96% | π |
| Wednesday, May 5, 2010 | Last Quarter | 56.64% | π |
| Thursday, May 6, 2010 | Last Quarter | 47.17% | π |
| Friday, May 7, 2010 | Last Quarter | 37.83% | π |
| Saturday, May 8, 2010 | Waning Crescent | 28.87% | π |
| Sunday, May 9, 2010 | Waning Crescent | 20.57% | π |
| Monday, May 10, 2010 | Waning Crescent | 13.24% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 7.21% | π |
| Wednesday, May 12, 2010 | New Moon | 2.82% | π |
| Thursday, May 13, 2010 | New Moon | 0.39% | π |
| Friday, May 14, 2010 | New Moon | 0.21% | π |
| Saturday, May 15, 2010 | New Moon | 2.44% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 7.09% | π |
| Monday, May 17, 2010 | Waxing Crescent | 14% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 22.84% | π |
| Wednesday, May 19, 2010 | First Quarter | 33.13% | π |
| Thursday, May 20, 2010 | First Quarter | 44.3% | π |
| Friday, May 21, 2010 | First Quarter | 55.76% | π |
| Saturday, May 22, 2010 | First Quarter | 66.89% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 77.1% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 85.86% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 92.73% | π |
| Wednesday, May 26, 2010 | Full Moon | 97.4% | π |
| Thursday, May 27, 2010 | Full Moon | 99.72% | π |
| Friday, May 28, 2010 | Full Moon | 99.71% | π |
| Saturday, May 29, 2010 | Full Moon | 97.51% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 93.38% | π |
| Monday, May 31, 2010 | Waning Gibbous | 87.6% | π |