Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 89.34% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 82.24% | π |
| Monday, May 3, 2010 | Waning Gibbous | 74.04% | π |
| Tuesday, May 4, 2010 | Last Quarter | 65.11% | π |
| Wednesday, May 5, 2010 | Last Quarter | 55.77% | π |
| Thursday, May 6, 2010 | Last Quarter | 46.3% | π |
| Friday, May 7, 2010 | Last Quarter | 36.98% | π |
| Saturday, May 8, 2010 | Waning Crescent | 28.07% | π |
| Sunday, May 9, 2010 | Waning Crescent | 19.85% | π |
| Monday, May 10, 2010 | Waning Crescent | 12.63% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 6.73% | π |
| Wednesday, May 12, 2010 | New Moon | 2.51% | π |
| Thursday, May 13, 2010 | New Moon | 0.28% | π |
| Friday, May 14, 2010 | New Moon | 0.31% | π |
| Saturday, May 15, 2010 | New Moon | 2.77% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 7.64% | π |
| Monday, May 17, 2010 | Waxing Crescent | 14.75% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 23.74% | π |
| Wednesday, May 19, 2010 | First Quarter | 34.14% | π |
| Thursday, May 20, 2010 | First Quarter | 45.36% | π |
| Friday, May 21, 2010 | First Quarter | 56.81% | π |
| Saturday, May 22, 2010 | First Quarter | 67.88% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 77.98% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 86.58% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 93.26% | π |
| Wednesday, May 26, 2010 | Full Moon | 97.71% | π |
| Thursday, May 27, 2010 | Full Moon | 99.82% | π |
| Friday, May 28, 2010 | Full Moon | 99.59% | π |
| Saturday, May 29, 2010 | Full Moon | 97.21% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 92.91% | π |
| Monday, May 31, 2010 | Waning Gibbous | 87% | π |