Moon Calendar for May, 2009
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Friday, May 1, 2009 | First Quarter | 42.56% | π |
| Saturday, May 2, 2009 | First Quarter | 53.92% | π |
| Sunday, May 3, 2009 | First Quarter | 64.91% | π |
| Monday, May 4, 2009 | Waxing Gibbous | 75.02% | π |
| Tuesday, May 5, 2009 | Waxing Gibbous | 83.79% | π |
| Wednesday, May 6, 2009 | Waxing Gibbous | 90.86% | π |
| Thursday, May 7, 2009 | Waxing Gibbous | 95.99% | π |
| Friday, May 8, 2009 | Full Moon | 99.04% | π |
| Saturday, May 9, 2009 | Full Moon | 100% | π |
| Sunday, May 10, 2009 | Full Moon | 98.92% | π |
| Monday, May 11, 2009 | Waning Gibbous | 95.96% | π |
| Tuesday, May 12, 2009 | Waning Gibbous | 91.32% | π |
| Wednesday, May 13, 2009 | Waning Gibbous | 85.2% | π |
| Thursday, May 14, 2009 | Waning Gibbous | 77.86% | π |
| Friday, May 15, 2009 | Waning Gibbous | 69.54% | π |
| Saturday, May 16, 2009 | Last Quarter | 60.49% | π |
| Sunday, May 17, 2009 | Last Quarter | 50.94% | π |
| Monday, May 18, 2009 | Last Quarter | 41.18% | π |
| Tuesday, May 19, 2009 | Last Quarter | 31.52% | π |
| Wednesday, May 20, 2009 | Waning Crescent | 22.33% | π |
| Thursday, May 21, 2009 | Waning Crescent | 14.06% | π |
| Friday, May 22, 2009 | Waning Crescent | 7.24% | π |
| Saturday, May 23, 2009 | New Moon | 2.44% | π |
| Sunday, May 24, 2009 | New Moon | 0.14% | π |
| Monday, May 25, 2009 | New Moon | 0.7% | π |
| Tuesday, May 26, 2009 | Waxing Crescent | 4.18% | π |
| Wednesday, May 27, 2009 | Waxing Crescent | 10.37% | π |
| Thursday, May 28, 2009 | Waxing Crescent | 18.79% | π |
| Friday, May 29, 2009 | Waxing Crescent | 28.79% | π |
| Saturday, May 30, 2009 | First Quarter | 39.69% | π |
| Sunday, May 31, 2009 | First Quarter | 50.84% | π |