| New moon | May 2, 987 | |
| Waxing crescent | from May 3, 987 to May 9, 987 | |
| Moon first quarter | May 10, 987 | |
| Growing moon | from May 11, 987 to May 16, 987 | |
| Full moon | May 17, 987 | |
| Waning moon | from May 18, 987 to May 23, 987 | |
| Moon third quarter | May 24, 987 | |
| Waning crescent | from May 25, 987 to May 30, 987 |
| New moon | May 31, 987 | |
| Waxing crescent | from Jun 1, 987 to Jun 7, 987 | |
| Moon first quarter | Jun 8, 987 | |
| Growing moon | from Jun 9, 987 to Jun 14, 987 | |
| Full moon | Jun 15, 987 | |
| Waning moon | from Jun 16, 987 to Jun 21, 987 | |
| Moon third quarter | Jun 22, 987 | |
| Waning crescent | from Jun 23, 987 to Jun 29, 987 |