| New moon | May 3, 900 | |
| Waxing crescent | from May 4, 900 to May 10, 900 | |
| Moon first quarter | May 11, 900 | |
| Growing moon | from May 12, 900 to May 17, 900 | |
| Full moon | May 18, 900 | |
| Waning moon | from May 19, 900 to May 24, 900 | |
| Moon third quarter | May 25, 900 | |
| Waning crescent | from May 26, 900 to May 31, 900 |
| New moon | Jun 1, 900 | |
| Waxing crescent | from Jun 2, 900 to Jun 8, 900 | |
| Moon first quarter | Jun 9, 900 | |
| Growing moon | from Jun 10, 900 to Jun 16, 900 | |
| Full moon | Jun 17, 900 | |
| Waning moon | from Jun 18, 900 to Jun 22, 900 | |
| Moon third quarter | Jun 23, 900 | |
| Waning crescent | from Jun 24, 900 to Jun 30, 900 |