Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 89.5% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 82.44% | π |
| Monday, May 3, 2010 | Waning Gibbous | 74.26% | π |
| Tuesday, May 4, 2010 | Last Quarter | 65.34% | π |
| Wednesday, May 5, 2010 | Last Quarter | 56% | π |
| Thursday, May 6, 2010 | Last Quarter | 46.54% | π |
| Friday, May 7, 2010 | Last Quarter | 37.21% | π |
| Saturday, May 8, 2010 | Waning Crescent | 28.28% | π |
| Sunday, May 9, 2010 | Waning Crescent | 20.04% | π |
| Monday, May 10, 2010 | Waning Crescent | 12.79% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 6.86% | π |
| Wednesday, May 12, 2010 | New Moon | 2.59% | π |
| Thursday, May 13, 2010 | New Moon | 0.31% | π |
| Friday, May 14, 2010 | New Moon | 0.28% | π |
| Saturday, May 15, 2010 | New Moon | 2.67% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 7.49% | π |
| Monday, May 17, 2010 | Waxing Crescent | 14.55% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 23.5% | π |
| Wednesday, May 19, 2010 | First Quarter | 33.87% | π |
| Thursday, May 20, 2010 | First Quarter | 45.08% | π |
| Friday, May 21, 2010 | First Quarter | 56.53% | π |
| Saturday, May 22, 2010 | First Quarter | 67.61% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 77.74% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 86.39% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 93.12% | π |
| Wednesday, May 26, 2010 | Full Moon | 97.63% | π |
| Thursday, May 27, 2010 | Full Moon | 99.79% | π |
| Friday, May 28, 2010 | Full Moon | 99.63% | π |
| Saturday, May 29, 2010 | Full Moon | 97.29% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 93.04% | π |
| Monday, May 31, 2010 | Waning Gibbous | 87.16% | π |