| New moon | Dec 21, 990 | |
| Waxing crescent | from Dec 22, 990 to Dec 27, 990 | |
| Moon first quarter | Dec 28, 990 | |
| Growing moon | from Dec 29, 990 to Jan 3, 991 | |
| Full moon | Jan 4, 991 | |
| Waning moon | from Jan 5, 991 to Jan 11, 991 | |
| Moon third quarter | Jan 12, 991 | |
| Waning crescent | from Jan 13, 991 to Jan 19, 991 |
| New moon | Jan 20, 991 | |
| Waxing crescent | from Jan 21, 991 to Jan 26, 991 | |
| Moon first quarter | Jan 27, 991 | |
| Growing moon | from Jan 28, 991 to Feb 2, 991 | |
| Full moon | Feb 3, 991 | |
| Waning moon | from Feb 4, 991 to Feb 10, 991 | |
| Moon third quarter | Feb 11, 991 | |
| Waning crescent | from Feb 12, 991 to Feb 18, 991 |
| New moon | Feb 19, 991 | |
| Waxing crescent | from Feb 20, 991 to Feb 24, 991 | |
| Moon first quarter | Feb 25, 991 | |
| Growing moon | from Feb 26, 991 to Mar 3, 991 | |
| Full moon | Mar 4, 991 | |
| Waning moon | from Mar 5, 991 to Mar 11, 991 | |
| Moon third quarter | Mar 12, 991 | |
| Waning crescent | from Mar 13, 991 to Mar 19, 991 |
| New moon | Mar 20, 991 | |
| Waxing crescent | from Mar 21, 991 to Mar 26, 991 | |
| Moon first quarter | Mar 27, 991 | |
| Growing moon | from Mar 28, 991 to Apr 2, 991 | |
| Full moon | Apr 3, 991 | |
| Waning moon | from Apr 4, 991 to Apr 10, 991 | |
| Moon third quarter | Apr 11, 991 | |
| Waning crescent | from Apr 12, 991 to Apr 17, 991 |
| New moon | Apr 18, 991 | |
| Waxing crescent | from Apr 19, 991 to Apr 24, 991 | |
| Moon first quarter | Apr 25, 991 | |
| Growing moon | from Apr 26, 991 to May 1, 991 | |
| Full moon | May 2, 991 | |
| Waning moon | from May 3, 991 to May 10, 991 | |
| Moon third quarter | May 11, 991 | |
| Waning crescent | from May 12, 991 to May 16, 991 |
| New moon | May 17, 991 | |
| Waxing crescent | from May 18, 991 to May 23, 991 | |
| Moon first quarter | May 24, 991 | |
| Growing moon | from May 25, 991 to May 31, 991 | |
| Full moon | Jun 1, 991 | |
| Waning moon | from Jun 2, 991 to Jun 8, 991 | |
| Moon third quarter | Jun 9, 991 | |
| Waning crescent | from Jun 10, 991 to Jun 15, 991 |
| New moon | Jun 16, 991 | |
| Waxing crescent | from Jun 17, 991 to Jun 22, 991 | |
| Moon first quarter | Jun 23, 991 | |
| Growing moon | from Jun 24, 991 to Jun 30, 991 | |
| Full moon | Jul 1, 991 | |
| Waning moon | from Jul 2, 991 to Jul 7, 991 | |
| Moon third quarter | Jul 8, 991 | |
| Waning crescent | from Jul 9, 991 to Jul 14, 991 |
| New moon | Jul 15, 991 | |
| Waxing crescent | from Jul 16, 991 to Jul 21, 991 | |
| Moon first quarter | Jul 22, 991 | |
| Growing moon | from Jul 23, 991 to Jul 30, 991 | |
| Full moon | Jul 31, 991 | |
| Waning moon | from Aug 1, 991 to Aug 6, 991 | |
| Moon third quarter | Aug 7, 991 | |
| Waning crescent | from Aug 8, 991 to Aug 12, 991 |
| New moon | Aug 13, 991 | |
| Waxing crescent | from Aug 14, 991 to Aug 20, 991 | |
| Moon first quarter | Aug 21, 991 | |
| Growing moon | from Aug 22, 991 to Aug 28, 991 | |
| Full moon | Aug 29, 991 | |
| Waning moon | from Aug 30, 991 to Sep 4, 991 | |
| Moon third quarter | Sep 5, 991 | |
| Waning crescent | from Sep 6, 991 to Sep 11, 991 |
| New moon | Sep 12, 991 | |
| Waxing crescent | from Sep 13, 991 to Sep 19, 991 | |
| Moon first quarter | Sep 20, 991 | |
| Growing moon | from Sep 21, 991 to Sep 27, 991 | |
| Full moon | Sep 28, 991 | |
| Waning moon | from Sep 29, 991 to Oct 3, 991 | |
| Moon third quarter | Oct 4, 991 | |
| Waning crescent | from Oct 5, 991 to Oct 10, 991 |
| New moon | Oct 11, 991 | |
| Waxing crescent | from Oct 12, 991 to Oct 19, 991 | |
| Moon first quarter | Oct 20, 991 | |
| Growing moon | from Oct 21, 991 to Oct 26, 991 | |
| Full moon | Oct 27, 991 | |
| Waning moon | from Oct 28, 991 to Nov 2, 991 | |
| Moon third quarter | Nov 3, 991 | |
| Waning crescent | from Nov 4, 991 to Nov 9, 991 |
| New moon | Nov 10, 991 | |
| Waxing crescent | from Nov 11, 991 to Nov 17, 991 | |
| Moon first quarter | Nov 18, 991 | |
| Growing moon | from Nov 19, 991 to Nov 24, 991 | |
| Full moon | Nov 25, 991 | |
| Waning moon | from Nov 26, 991 to Dec 1, 991 | |
| Moon third quarter | Dec 2, 991 | |
| Waning crescent | from Dec 3, 991 to Dec 9, 991 |
| New moon | Dec 10, 991 | |
| Waxing crescent | from Dec 11, 991 to Dec 17, 991 | |
| Moon first quarter | Dec 18, 991 | |
| Growing moon | from Dec 19, 991 to Dec 24, 991 | |
| Full moon | Dec 25, 991 | |
| Waning moon | from Dec 26, 991 to Dec 31, 991 | |
| Moon third quarter | Jan 1, 992 | |
| Waning crescent | from Jan 2, 992 to Jan 8, 992 |