Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 90.77% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 83.98% | π |
| Monday, May 3, 2010 | Waning Gibbous | 76% | π |
| Tuesday, May 4, 2010 | Last Quarter | 67.21% | π |
| Wednesday, May 5, 2010 | Last Quarter | 57.93% | π |
| Thursday, May 6, 2010 | Last Quarter | 48.47% | π |
| Friday, May 7, 2010 | Last Quarter | 39.09% | π |
| Saturday, May 8, 2010 | Waning Crescent | 30.06% | π |
| Sunday, May 9, 2010 | Waning Crescent | 21.66% | π |
| Monday, May 10, 2010 | Waning Crescent | 14.18% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 7.95% | π |
| Wednesday, May 12, 2010 | New Moon | 3.31% | π |
| Thursday, May 13, 2010 | New Moon | 0.6% | π |
| Friday, May 14, 2010 | New Moon | 0.09% | π |
| Saturday, May 15, 2010 | New Moon | 1.99% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 6.31% | π |
| Monday, May 17, 2010 | Waxing Crescent | 12.93% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 21.54% | π |
| Wednesday, May 19, 2010 | First Quarter | 31.66% | π |
| Thursday, May 20, 2010 | First Quarter | 42.74% | π |
| Friday, May 21, 2010 | First Quarter | 54.2% | π |
| Saturday, May 22, 2010 | First Quarter | 65.4% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 75.77% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 84.76% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 91.91% | π |
| Wednesday, May 26, 2010 | Full Moon | 96.9% | π |
| Thursday, May 27, 2010 | Full Moon | 99.54% | π |
| Friday, May 28, 2010 | Full Moon | 99.84% | π |
| Saturday, May 29, 2010 | Full Moon | 97.93% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 94.05% | π |
| Monday, May 31, 2010 | Waning Gibbous | 88.48% | π |