Moon Calendar for May, 2009
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Friday, May 1, 2009 | First Quarter | 46.55% | π |
| Saturday, May 2, 2009 | First Quarter | 57.85% | π |
| Sunday, May 3, 2009 | First Quarter | 68.59% | π |
| Monday, May 4, 2009 | Waxing Gibbous | 78.27% | π |
| Tuesday, May 5, 2009 | Waxing Gibbous | 86.48% | π |
| Wednesday, May 6, 2009 | Waxing Gibbous | 92.89% | π |
| Thursday, May 7, 2009 | Full Moon | 97.3% | π |
| Friday, May 8, 2009 | Full Moon | 99.62% | π |
| Saturday, May 9, 2009 | Full Moon | 99.85% | π |
| Sunday, May 10, 2009 | Full Moon | 98.09% | π |
| Monday, May 11, 2009 | Waning Gibbous | 94.51% | π |
| Tuesday, May 12, 2009 | Waning Gibbous | 89.32% | π |
| Wednesday, May 13, 2009 | Waning Gibbous | 82.75% | π |
| Thursday, May 14, 2009 | Waning Gibbous | 75.04% | π |
| Friday, May 15, 2009 | Last Quarter | 66.43% | π |
| Saturday, May 16, 2009 | Last Quarter | 57.18% | π |
| Sunday, May 17, 2009 | Last Quarter | 47.52% | π |
| Monday, May 18, 2009 | Last Quarter | 37.76% | π |
| Tuesday, May 19, 2009 | Waning Crescent | 28.22% | π |
| Wednesday, May 20, 2009 | Waning Crescent | 19.29% | π |
| Thursday, May 21, 2009 | Waning Crescent | 11.47% | π |
| Friday, May 22, 2009 | Waning Crescent | 5.3% | π |
| Saturday, May 23, 2009 | New Moon | 1.32% | π |
| Sunday, May 24, 2009 | New Moon | 0% | π |
| Monday, May 25, 2009 | New Moon | 1.59% | π |
| Tuesday, May 26, 2009 | Waxing Crescent | 6.07% | π |
| Wednesday, May 27, 2009 | Waxing Crescent | 13.11% | π |
| Thursday, May 28, 2009 | Waxing Crescent | 22.16% | π |
| Friday, May 29, 2009 | First Quarter | 32.55% | π |
| Saturday, May 30, 2009 | First Quarter | 43.61% | π |
| Sunday, May 31, 2009 | First Quarter | 54.71% | π |