Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 87.63% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 80.21% | π |
| Monday, May 3, 2010 | Waning Gibbous | 71.79% | π |
| Tuesday, May 4, 2010 | Last Quarter | 62.72% | π |
| Wednesday, May 5, 2010 | Last Quarter | 53.32% | π |
| Thursday, May 6, 2010 | Last Quarter | 43.86% | π |
| Friday, May 7, 2010 | Last Quarter | 34.62% | π |
| Saturday, May 8, 2010 | Waning Crescent | 25.86% | π |
| Sunday, May 9, 2010 | Waning Crescent | 17.87% | π |
| Monday, May 10, 2010 | Waning Crescent | 10.96% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 5.47% | π |
| Wednesday, May 12, 2010 | New Moon | 1.73% | π |
| Thursday, May 13, 2010 | New Moon | 0.06% | π |
| Friday, May 14, 2010 | New Moon | 0.71% | π |
| Saturday, May 15, 2010 | New Moon | 3.8% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 9.27% | π |
| Monday, May 17, 2010 | Waxing Crescent | 16.91% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 26.32% | π |
| Wednesday, May 19, 2010 | First Quarter | 36.99% | π |
| Thursday, May 20, 2010 | First Quarter | 48.33% | π |
| Friday, May 21, 2010 | First Quarter | 59.73% | π |
| Saturday, May 22, 2010 | Waxing Gibbous | 70.61% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 80.36% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 88.51% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 94.63% | π |
| Wednesday, May 26, 2010 | Full Moon | 98.48% | π |
| Thursday, May 27, 2010 | Full Moon | 99.98% | π |
| Friday, May 28, 2010 | Full Moon | 99.18% | π |
| Saturday, May 29, 2010 | Full Moon | 96.27% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 91.52% | π |
| Monday, May 31, 2010 | Waning Gibbous | 85.25% | π |