Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 89.52% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 82.46% | π |
| Monday, May 3, 2010 | Waning Gibbous | 74.29% | π |
| Tuesday, May 4, 2010 | Last Quarter | 65.37% | π |
| Wednesday, May 5, 2010 | Last Quarter | 56.03% | π |
| Thursday, May 6, 2010 | Last Quarter | 46.57% | π |
| Friday, May 7, 2010 | Last Quarter | 37.24% | π |
| Saturday, May 8, 2010 | Waning Crescent | 28.31% | π |
| Sunday, May 9, 2010 | Waning Crescent | 20.07% | π |
| Monday, May 10, 2010 | Waning Crescent | 12.81% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 6.88% | π |
| Wednesday, May 12, 2010 | New Moon | 2.6% | 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 | 2.66% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 7.47% | π |
| Monday, May 17, 2010 | Waxing Crescent | 14.52% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 23.47% | π |
| Wednesday, May 19, 2010 | First Quarter | 33.83% | π |
| Thursday, May 20, 2010 | First Quarter | 45.04% | π |
| Friday, May 21, 2010 | First Quarter | 56.49% | π |
| Saturday, May 22, 2010 | First Quarter | 67.58% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 77.71% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 86.36% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 93.1% | π |
| Wednesday, May 26, 2010 | Full Moon | 97.62% | 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 | 97.3% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 93.05% | π |
| Monday, May 31, 2010 | Waning Gibbous | 87.18% | π |