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Moon phase calendar May 1981

Day	Phase	Illum.	Age	Rise (Tokyo)	Set (Tokyo)
1 Fri	Waning crescent	14%	26.3	03:03	14:57
2 Sat	Waning crescent	7%	27.3	03:40	16:07
3 Sun	New moon	2%	28.3	04:18	17:18
4 Mon	New moon 13:19	0%	29.3	04:58	18:31
5 Tue	New moon	2%	0.9	05:41	19:44
6 Wed	Waxing crescent	6%	1.9	06:29	20:54
7 Thu	Waxing crescent	13%	2.9	07:22	22:00
8 Fri	Waxing crescent	21%	3.9	08:19	22:59
9 Sat	First quarter	31%	4.9	09:19	23:50
10 Sun	First quarter	42%	5.9	10:21	–
11 Mon	First quarter 07:21	52%	6.9	11:21	00:35
12 Tue	First quarter	62%	7.9	12:21	01:13
13 Wed	Waxing gibbous	72%	8.9	13:18	01:48
14 Thu	Waxing gibbous	80%	9.9	14:14	02:19
15 Fri	Waxing gibbous	87%	10.9	15:09	02:48
16 Sat	Waxing gibbous	92%	11.9	16:04	03:17
17 Sun	Full moon	97%	12.9	16:59	03:47
18 Mon	Full moon	99%	13.9	17:54	04:17
19 Tue	Full moon 09:03	100%	14.9	18:49	04:50
20 Wed	Full moon	99%	15.9	19:44	05:27
21 Thu	Waning gibbous	96%	16.9	20:38	06:07
22 Fri	Waning gibbous	91%	17.9	21:29	06:51
23 Sat	Waning gibbous	85%	18.9	22:18	07:41
24 Sun	Waning gibbous	77%	19.9	23:04	08:35
25 Mon	Last quarter	68%	20.9	23:46	09:32
26 Tue	Last quarter	58%	21.9	–	10:33
27 Wed	Last quarter 06:00	47%	22.9	00:25	11:35
28 Thu	Last quarter	36%	23.9	01:01	12:40
29 Fri	Waning crescent	26%	24.9	01:37	13:46
30 Sat	Waning crescent	16%	25.9	02:13	14:55
31 Sun	Waning crescent	8%	26.9	02:50	16:05

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 May 1981. Full moon: May 19 (405,857 km away).