Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 87.02% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 79.49% | π |
| Monday, May 3, 2010 | Waning Gibbous | 71% | π |
| Tuesday, May 4, 2010 | Last Quarter | 61.89% | π |
| Wednesday, May 5, 2010 | Last Quarter | 52.47% | π |
| Thursday, May 6, 2010 | Last Quarter | 43.03% | π |
| Friday, May 7, 2010 | Last Quarter | 33.81% | π |
| Saturday, May 8, 2010 | Waning Crescent | 25.11% | π |
| Sunday, May 9, 2010 | Waning Crescent | 17.2% | π |
| Monday, May 10, 2010 | Waning Crescent | 10.41% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 5.06% | π |
| Wednesday, May 12, 2010 | New Moon | 1.49% | π |
| Thursday, May 13, 2010 | New Moon | 0.02% | π |
| Friday, May 14, 2010 | New Moon | 0.89% | π |
| Saturday, May 15, 2010 | Waxing Crescent | 4.19% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 9.87% | π |
| Monday, May 17, 2010 | Waxing Crescent | 17.69% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 27.23% | π |
| Wednesday, May 19, 2010 | First Quarter | 37.98% | π |
| Thursday, May 20, 2010 | First Quarter | 49.35% | π |
| Friday, May 21, 2010 | First Quarter | 60.74% | π |
| Saturday, May 22, 2010 | Waxing Gibbous | 71.53% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 81.17% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 89.14% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 95.07% | π |
| Wednesday, May 26, 2010 | Full Moon | 98.71% | π |
| Thursday, May 27, 2010 | Full Moon | 100% | π |
| Friday, May 28, 2010 | Full Moon | 99% | π |
| Saturday, May 29, 2010 | Waning Gibbous | 95.91% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 91.02% | π |
| Monday, May 31, 2010 | Waning Gibbous | 84.62% | π |