Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 88.81% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 81.6% | π |
| Monday, May 3, 2010 | Waning Gibbous | 73.33% | π |
| Tuesday, May 4, 2010 | Last Quarter | 64.35% | π |
| Wednesday, May 5, 2010 | Last Quarter | 54.99% | π |
| Thursday, May 6, 2010 | Last Quarter | 45.52% | π |
| Friday, May 7, 2010 | Last Quarter | 36.22% | π |
| Saturday, May 8, 2010 | Waning Crescent | 27.36% | π |
| Sunday, May 9, 2010 | Waning Crescent | 19.21% | π |
| Monday, May 10, 2010 | Waning Crescent | 12.09% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 6.32% | π |
| Wednesday, May 12, 2010 | New Moon | 2.25% | π |
| Thursday, May 13, 2010 | New Moon | 0.19% | π |
| Friday, May 14, 2010 | New Moon | 0.42% | π |
| Saturday, May 15, 2010 | New Moon | 3.08% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 8.14% | π |
| Monday, May 17, 2010 | Waxing Crescent | 15.42% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 24.55% | π |
| Wednesday, May 19, 2010 | First Quarter | 35.04% | π |
| Thursday, May 20, 2010 | First Quarter | 46.3% | π |
| Friday, May 21, 2010 | First Quarter | 57.75% | π |
| Saturday, May 22, 2010 | First Quarter | 68.75% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 78.75% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 87.21% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 93.71% | π |
| Wednesday, May 26, 2010 | Full Moon | 97.98% | π |
| Thursday, May 27, 2010 | Full Moon | 99.88% | π |
| Friday, May 28, 2010 | Full Moon | 99.48% | π |
| Saturday, May 29, 2010 | Full Moon | 96.92% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 92.48% | π |
| Monday, May 31, 2010 | Waning Gibbous | 86.45% | π |