Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 90.23% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 83.32% | π |
| Monday, May 3, 2010 | Waning Gibbous | 75.26% | π |
| Tuesday, May 4, 2010 | Last Quarter | 66.41% | π |
| Wednesday, May 5, 2010 | Last Quarter | 57.1% | π |
| Thursday, May 6, 2010 | Last Quarter | 47.64% | π |
| Friday, May 7, 2010 | Last Quarter | 38.28% | π |
| Saturday, May 8, 2010 | Waning Crescent | 29.29% | π |
| Sunday, May 9, 2010 | Waning Crescent | 20.96% | π |
| Monday, May 10, 2010 | Waning Crescent | 13.57% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 7.47% | π |
| Wednesday, May 12, 2010 | New Moon | 2.99% | π |
| Thursday, May 13, 2010 | New Moon | 0.46% | π |
| Friday, May 14, 2010 | New Moon | 0.16% | π |
| Saturday, May 15, 2010 | New Moon | 2.27% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 6.81% | π |
| Monday, May 17, 2010 | Waxing Crescent | 13.62% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 22.37% | π |
| Wednesday, May 19, 2010 | First Quarter | 32.6% | π |
| Thursday, May 20, 2010 | First Quarter | 43.75% | π |
| Friday, May 21, 2010 | First Quarter | 55.2% | π |
| Saturday, May 22, 2010 | First Quarter | 66.36% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 76.63% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 85.47% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 92.44% | π |
| Wednesday, May 26, 2010 | Full Moon | 97.22% | π |
| Thursday, May 27, 2010 | Full Moon | 99.66% | π |
| Friday, May 28, 2010 | Full Moon | 99.76% | π |
| Saturday, May 29, 2010 | Full Moon | 97.67% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 93.62% | π |
| Monday, May 31, 2010 | Waning Gibbous | 87.92% | π |