Moon Calendar for May, 2010
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Saturday, May 1, 2010 | Waning Gibbous | 85.86% | π |
| Sunday, May 2, 2010 | Waning Gibbous | 78.15% | π |
| Monday, May 3, 2010 | Waning Gibbous | 69.53% | π |
| Tuesday, May 4, 2010 | Last Quarter | 60.35% | π |
| Wednesday, May 5, 2010 | Last Quarter | 50.91% | π |
| Thursday, May 6, 2010 | Last Quarter | 41.48% | π |
| Friday, May 7, 2010 | Last Quarter | 32.34% | π |
| Saturday, May 8, 2010 | Waning Crescent | 23.75% | π |
| Sunday, May 9, 2010 | Waning Crescent | 16% | π |
| Monday, May 10, 2010 | Waning Crescent | 9.42% | π |
| Tuesday, May 11, 2010 | Waning Crescent | 4.34% | π |
| Wednesday, May 12, 2010 | New Moon | 1.1% | π |
| Thursday, May 13, 2010 | New Moon | 0% | π |
| Friday, May 14, 2010 | New Moon | 1.26% | π |
| Saturday, May 15, 2010 | Waxing Crescent | 4.97% | π |
| Sunday, May 16, 2010 | Waxing Crescent | 11.02% | π |
| Monday, May 17, 2010 | Waxing Crescent | 19.15% | π |
| Tuesday, May 18, 2010 | Waxing Crescent | 28.93% | π |
| Wednesday, May 19, 2010 | First Quarter | 39.83% | π |
| Thursday, May 20, 2010 | First Quarter | 51.25% | π |
| Friday, May 21, 2010 | First Quarter | 62.57% | π |
| Saturday, May 22, 2010 | Waxing Gibbous | 73.21% | π |
| Sunday, May 23, 2010 | Waxing Gibbous | 82.61% | π |
| Monday, May 24, 2010 | Waxing Gibbous | 90.27% | π |
| Tuesday, May 25, 2010 | Waxing Gibbous | 95.83% | π |
| Wednesday, May 26, 2010 | Full Moon | 99.09% | π |
| Thursday, May 27, 2010 | Full Moon | 99.99% | π |
| Friday, May 28, 2010 | Full Moon | 98.63% | π |
| Saturday, May 29, 2010 | Waning Gibbous | 95.22% | π |
| Sunday, May 30, 2010 | Waning Gibbous | 90.06% | π |
| Monday, May 31, 2010 | Waning Gibbous | 83.44% | π |