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Moon phase calendar October 1981
| Day | Phase | Illum. | Age | Rise (Tokyo) | Set (Tokyo) | |
|---|---|---|---|---|---|---|
| 1 Thu | Waxing crescent | 8% | 3.0 | 08:05 | 19:22 | |
| 2 Fri | Waxing crescent | 14% | 4.0 | 09:01 | 19:55 | |
| 3 Sat | Waxing crescent | 22% | 5.0 | 09:56 | 20:31 | |
| 4 Sun | Waxing crescent | 30% | 6.0 | 10:51 | 21:10 | |
| 5 Mon | First quarter | 39% | 7.0 | 11:44 | 21:55 | |
| 6 Tue | First quarter 16:45 | 48% | 8.0 | 12:35 | 22:44 | |
| 7 Wed | First quarter | 58% | 9.0 | 13:24 | 23:37 | |
| 8 Thu | First quarter | 68% | 10.0 | 14:09 | – | |
| 9 Fri | Waxing gibbous | 77% | 11.0 | 14:51 | 00:36 | |
| 10 Sat | Waxing gibbous | 85% | 12.0 | 15:30 | 01:37 | |
| 11 Sun | Waxing gibbous | 92% | 13.0 | 16:07 | 02:42 | |
| 12 Mon | Full moon | 97% | 14.0 | 16:44 | 03:48 | |
| 13 Tue | Full moon 21:49 | 100% | 15.0 | 17:20 | 04:57 | |
| 14 Wed | Full moon | 99% | 16.0 | 17:57 | 06:07 | |
| 15 Thu | Full moon | 96% | 17.0 | 18:37 | 07:18 | |
| 16 Fri | Waning gibbous | 90% | 18.0 | 19:22 | 08:30 | |
| 17 Sat | Waning gibbous | 82% | 19.0 | 20:11 | 09:40 | |
| 18 Sun | Waning gibbous | 72% | 20.0 | 21:05 | 10:48 | |
| 19 Mon | Last quarter | 62% | 21.0 | 22:04 | 11:50 | |
| 20 Tue | Last quarter 12:40 | 50% | 22.0 | 23:05 | 12:44 | |
| 21 Wed | Last quarter | 40% | 23.0 | – | 13:32 | |
| 22 Thu | Waning crescent | 30% | 24.0 | 00:07 | 14:14 | |
| 23 Fri | Waning crescent | 21% | 25.0 | 01:09 | 14:50 | |
| 24 Sat | Waning crescent | 13% | 26.0 | 02:09 | 15:23 | |
| 25 Sun | Waning crescent | 7% | 27.0 | 03:08 | 15:54 | |
| 26 Mon | New moon | 3% | 28.0 | 04:05 | 16:23 | |
| 27 Tue | New moon | 1% | 29.0 | 05:02 | 16:52 | |
| 28 Wed | New moon 05:13 | 0% | 0.3 | 05:58 | 17:22 | |
| 29 Thu | New moon | 2% | 1.3 | 06:54 | 17:54 | |
| 30 Fri | Waxing crescent | 5% | 2.3 | 07:49 | 18:29 | |
| 31 Sat | Waxing crescent | 10% | 3.3 | 08:44 | 19:07 |
Computed with the JPL DE421 ephemeris and Skyfield (JST). Illumination and age are for 12:00 JST; moonrise and moonset are for Tokyo. Distances are centre to centre. "Supermoon" is not a formal astronomical term.
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Daily moon phase, illumination, age and Tokyo moonrise/moonset for October 1981. Full moon: Oct 13 (362,501 km away).