Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 90.12% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 83.19% | π |
| Monday, May 3, 2010 | Waning Gibbous | 75.11% | π |
| Tuesday, May 4, 2010 | Last Quarter | 66.25% | π |
| Wednesday, May 5, 2010 | Last Quarter | 56.94% | π |
| Thursday, May 6, 2010 | Last Quarter | 47.47% | π |
| Friday, May 7, 2010 | Last Quarter | 38.12% | π |
| Saturday, May 8, 2010 | Waning Crescent | 29.14% | π |
| Sunday, May 9, 2010 | Waning Crescent | 20.82% | π |
| Monday, May 10, 2010 | Waning Crescent | 13.46% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 7.38% | π |
| Wednesday, May 12, 2010 | New Moon | 2.93% | π |
| Thursday, May 13, 2010 | New Moon | 0.44% | π |
| Friday, May 14, 2010 | New Moon | 0.18% | π |
| Saturday, May 15, 2010 | New Moon | 2.33% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 6.91% | π |
| Monday, May 17, 2010 | Waxing Crescent | 13.76% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 22.54% | π |
| Wednesday, May 19, 2010 | First Quarter | 32.79% | π |
| Thursday, May 20, 2010 | First Quarter | 43.95% | π |
| Friday, May 21, 2010 | First Quarter | 55.4% | π |
| Saturday, May 22, 2010 | First Quarter | 66.55% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 76.8% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 85.61% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 92.55% | π |
| Wednesday, May 26, 2010 | Full Moon | 97.29% | π |
| Thursday, May 27, 2010 | Full Moon | 99.68% | π |
| Friday, May 28, 2010 | Full Moon | 99.74% | π |
| Saturday, May 29, 2010 | Full Moon | 97.61% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 93.53% | π |
| Monday, May 31, 2010 | Waning Gibbous | 87.81% | π |