Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 91.71% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 85.15% | π |
| Monday, May 3, 2010 | Waning Gibbous | 77.33% | π |
| Tuesday, May 4, 2010 | Last Quarter | 68.64% | π |
| Wednesday, May 5, 2010 | Last Quarter | 59.42% | π |
| Thursday, May 6, 2010 | Last Quarter | 49.97% | π |
| Friday, May 7, 2010 | Last Quarter | 40.56% | π |
| Saturday, May 8, 2010 | Last Quarter | 31.45% | π |
| Sunday, May 9, 2010 | Waning Crescent | 22.93% | π |
| Monday, May 10, 2010 | Waning Crescent | 15.29% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 8.84% | π |
| Wednesday, May 12, 2010 | Waning Crescent | 3.93% | π |
| Thursday, May 13, 2010 | New Moon | 0.89% | π |
| Friday, May 14, 2010 | New Moon | 0.02% | π |
| Saturday, May 15, 2010 | New Moon | 1.52% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 5.47% | π |
| Monday, May 17, 2010 | Waxing Crescent | 11.75% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 20.06% | π |
| Wednesday, May 19, 2010 | Waxing Crescent | 29.98% | π |
| Thursday, May 20, 2010 | First Quarter | 40.95% | π |
| Friday, May 21, 2010 | First Quarter | 52.39% | π |
| Saturday, May 22, 2010 | First Quarter | 63.67% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 74.21% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 83.45% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 90.92% | π |
| Wednesday, May 26, 2010 | Full Moon | 96.26% | π |
| Thursday, May 27, 2010 | Full Moon | 99.28% | π |
| Friday, May 28, 2010 | Full Moon | 99.95% | π |
| Saturday, May 29, 2010 | Full Moon | 98.37% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 94.78% | π |
| Monday, May 31, 2010 | Waning Gibbous | 89.46% | π |