This page presents a calendar of a selected year, showing key Moon events — apogees, perigees, and new and full Moons — drawn from our database. We have 500 years of Moon data, from 1800 to 2299. You can see overview statistics from this data on the Eclipse Statistics page.

You can pick the century, decade and year to display from the menu above. You can also switch to Table View to see the Moon events listed with full statistics.

Hover the mouse over an event to see data about the Moon during that event. The graphical icons show when eclipses occur. Note that all dates and times are in UT.

Moon Calendar, 1921

Month Sun Mon Tue Wed Thu Fri Sat
January
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
New
9 Jan, 1921 05:26:27 UT
New Moon
Sun Dist 147,115,758 km
(-1.7%)
Sun Size 0.542°
(+1.7%)
Moon Dist 406,699 km
(+6.3%)
Moon Geo Size 0.489°
(-6.2%)
Moon Zenith Size 0.497°
(-6.3%)
Moon Magnitude -12.86
(-9.2%)
Apo
9 Jan, 1921 09:09:28 UT
Apogee
Sun Dist 147,116,564 km
(-1.7%)
Sun Size 0.542°
(+1.7%)
Moon Dist 406,706 km
(+6.3%)
Moon Geo Size 0.489°
(-6.2%)
Moon Zenith Size 0.497°
(-6.3%)
Moon Magnitude -12.86
(-9.2%)
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
Full
23 Jan, 1921 23:07:31 UT
Full Moon
Sun Dist 147,263,882 km
(-1.6%)
Sun Size 0.542°
(+1.6%)
Moon Dist 356,888 km
(-6.7%)
Moon Geo Size 0.558°
(+6.9%)
Moon Zenith Size 0.568°
(+7.0%)
Moon Magnitude -13.15
(+17.7%)
Peri
23 Jan, 1921 13:36:56 UT
Perigee
Sun Dist 147,257,592 km
(-1.6%)
Sun Size 0.542°
(+1.6%)
Moon Dist 356,729 km
(-6.8%)
Moon Geo Size 0.558°
(+7.0%)
Moon Zenith Size 0.568°
(+7.1%)
Moon Magnitude -13.15
(+17.8%)
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
February
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
Apo
5 Feb, 1921 11:46:40 UT
Apogee
Sun Dist 147,527,640 km
(-1.4%)
Sun Size 0.541°
(+1.4%)
Moon Dist 406,447 km
(+6.2%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.497°
(-6.2%)
Moon Magnitude -12.86
(-9.6%)
6
 
 
 
7
 
 
 
8
 
New
8 Feb, 1921 00:36:33 UT
New Moon
Sun Dist 147,592,258 km
(-1.4%)
Sun Size 0.540°
(+1.4%)
Moon Dist 404,177 km
(+5.6%)
Moon Geo Size 0.492°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.87
(-8.7%)
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
Peri
21 Feb, 1921 00:21:39 UT
Perigee
Sun Dist 147,969,722 km
(-1.1%)
Sun Size 0.539°
(+1.1%)
Moon Dist 359,825 km
(-6.0%)
Moon Geo Size 0.553°
(+6.1%)
Moon Zenith Size 0.563°
(+6.2%)
Moon Magnitude -13.12
(+14.6%)
22
 
Full
22 Feb, 1921 09:31:54 UT
Full Moon
Sun Dist 148,015,796 km
(-1.1%)
Sun Size 0.539°
(+1.1%)
Moon Dist 361,508 km
(-5.5%)
Moon Geo Size 0.551°
(+5.6%)
Moon Zenith Size 0.560°
(+5.7%)
Moon Magnitude -13.11
(+13.5%)
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
March
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
Apo
5 Mar, 1921 01:50:33 UT
Apogee
Sun Dist 148,409,208 km
(-0.8%)
Sun Size 0.537°
(+0.8%)
Moon Dist 405,573 km
(+6.0%)
Moon Geo Size 0.491°
(-5.9%)
Moon Zenith Size 0.499°
(-6.0%)
Moon Magnitude -12.85
(-10.3%)
6
 
 
 
7
 
 
 
8
 
 
 
9
 
New
9 Mar, 1921 18:08:52 UT
New Moon
Sun Dist 148,593,561 km
(-0.7%)
Sun Size 0.537°
(+0.7%)
Moon Dist 396,736 km
(+3.7%)
Moon Geo Size 0.502°
(-3.8%)
Moon Zenith Size 0.510°
(-3.9%)
Moon Magnitude -12.90
(-6.5%)
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
Peri
21 Mar, 1921 01:16:10 UT
Perigee
Sun Dist 149,049,847 km
(-0.4%)
Sun Size 0.535°
(+0.4%)
Moon Dist 365,044 km
(-4.6%)
Moon Geo Size 0.545°
(+4.5%)
Moon Zenith Size 0.555°
(+4.6%)
Moon Magnitude -13.07
(+9.8%)
22
 
 
 
23
 
Full
23 Mar, 1921 20:18:27 UT
Full Moon
Sun Dist 149,167,463 km
(-0.3%)
Sun Size 0.535°
(+0.3%)
Moon Dist 370,040 km
(-3.3%)
Moon Geo Size 0.538°
(+3.1%)
Moon Zenith Size 0.547°
(+3.2%)
Moon Magnitude -13.04
(+6.7%)
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
April
1
 
 
Apo
1 Apr, 1921 20:55:05 UT
Apogee
Sun Dist 149,561,080 km
(-0.0%)
Sun Size 0.533°
(+0.0%)
Moon Dist 404,605 km
(+5.7%)
Moon Geo Size 0.492°
(-5.7%)
Moon Zenith Size 0.500°
(-5.8%)
Moon Magnitude -12.84
(-11.2%)
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
8 Apr, 1921 UT
Annular Solar Eclipse
Moon Size at
Max Eclipse		 0.519°
(-2.1%)
New
8 Apr, 1921 09:04:49 UT
New Moon
Sun Dist 149,844,494 km
(+0.1%)
Sun Size 0.532°
(-0.2%)
Moon Dist 386,350 km
(+1.0%)
Moon Geo Size 0.515°
(-1.2%)
Moon Zenith Size 0.524°
(-1.2%)
Moon Magnitude -12.94
(-3.0%)
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
Peri
16 Apr, 1921 15:17:16 UT
Perigee
Sun Dist 150,188,437 km
(+0.4%)
Sun Size 0.531°
(-0.4%)
Moon Dist 369,593 km
(-3.4%)
Moon Geo Size 0.539°
(+3.3%)
Moon Zenith Size 0.548°
(+3.3%)
Moon Magnitude -13.03
(+5.5%)
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
22 Apr, 1921 UT
Total Lunar Eclipse
Moon Size at
Max Eclipse		 0.532°
(+0.2%)
Full
22 Apr, 1921 07:49:00 UT
Full Moon
Sun Dist 150,419,143 km
(+0.5%)
Sun Size 0.530°
(-0.5%)
Moon Dist 380,776 km
(-0.5%)
Moon Geo Size 0.523°
(+0.2%)
Moon Zenith Size 0.532°
(+0.2%)
Moon Magnitude -12.96
(-0.9%)
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
Apo
29 Apr, 1921 16:35:16 UT
Apogee
Sun Dist 150,713,853 km
(+0.7%)
Sun Size 0.529°
(-0.7%)
Moon Dist 404,260 km
(+5.6%)
Moon Geo Size 0.492°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.83
(-12.4%)
30
 
 
 
May
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
New
7 May, 1921 21:01:05 UT
New Moon
Sun Dist 151,020,152 km
(+0.9%)
Sun Size 0.528°
(-0.9%)
Moon Dist 375,406 km
(-1.9%)
Moon Geo Size 0.530°
(+1.7%)
Moon Zenith Size 0.539°
(+1.7%)
Moon Magnitude -12.98
(+1.1%)
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
Peri
11 May, 1921 20:17:52 UT
Perigee
Sun Dist 151,154,657 km
(+1.0%)
Sun Size 0.528°
(-1.0%)
Moon Dist 367,702 km
(-3.9%)
Moon Geo Size 0.541°
(+3.8%)
Moon Zenith Size 0.551°
(+3.8%)
Moon Magnitude -13.02
(+5.2%)
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
Full
21 May, 1921 20:15:06 UT
Full Moon
Sun Dist 151,457,173 km
(+1.2%)
Sun Size 0.527°
(-1.2%)
Moon Dist 391,618 km
(+2.3%)
Moon Geo Size 0.508°
(-2.6%)
Moon Zenith Size 0.517°
(-2.6%)
Moon Magnitude -12.88
(-7.6%)
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
Apo
27 May, 1921 10:50:29 UT
Apogee
Sun Dist 151,610,296 km
(+1.3%)
Sun Size 0.526°
(-1.3%)
Moon Dist 404,751 km
(+5.8%)
Moon Geo Size 0.492°
(-5.7%)
Moon Zenith Size 0.500°
(-5.8%)
Moon Magnitude -12.81
(-13.7%)
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
June
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
New
6 Jun, 1921 06:14:21 UT
New Moon
Sun Dist 151,835,327 km
(+1.5%)
Sun Size 0.525°
(-1.5%)
Moon Dist 365,997 km
(-4.4%)
Moon Geo Size 0.544°
(+4.3%)
Moon Zenith Size 0.553°
(+4.3%)
Moon Magnitude -13.03
(+5.2%)
 
7
 
 
 
8
 
 
Peri
8 Jun, 1921 08:50:14 UT
Perigee
Sun Dist 151,873,779 km
(+1.5%)
Sun Size 0.525°
(-1.5%)
Moon Dist 362,708 km
(-5.2%)
Moon Geo Size 0.549°
(+5.2%)
Moon Zenith Size 0.558°
(+5.3%)
Moon Magnitude -13.04
(+7.1%)
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
Full
20 Jun, 1921 09:41:00 UT
Full Moon
Sun Dist 152,030,855 km
(+1.6%)
Sun Size 0.525°
(-1.6%)
Moon Dist 400,470 km
(+4.7%)
Moon Geo Size 0.497°
(-4.7%)
Moon Zenith Size 0.505°
(-4.8%)
Moon Magnitude -12.83
(-12.3%)
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
Apo
24 Jun, 1921 01:50:27 UT
Apogee
Sun Dist 152,062,664 km
(+1.6%)
Sun Size 0.524°
(-1.6%)
Moon Dist 405,657 km
(+6.0%)
Moon Geo Size 0.491°
(-5.9%)
Moon Zenith Size 0.498°
(-6.0%)
Moon Magnitude -12.80
(-14.6%)
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
July
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
New
5 Jul, 1921 13:35:51 UT
New Moon
Sun Dist 152,104,707 km
(+1.7%)
Sun Size 0.524°
(-1.6%)
Moon Dist 359,611 km
(-6.0%)
Moon Geo Size 0.554°
(+6.1%)
Moon Zenith Size 0.563°
(+6.2%)
Moon Magnitude -13.06
(+8.6%)
 
6
 
 
Peri
6 Jul, 1921 12:56:07 UT
Perigee
Sun Dist 152,103,119 km
(+1.7%)
Sun Size 0.524°
(-1.6%)
Moon Dist 358,749 km
(-6.2%)
Moon Geo Size 0.555°
(+6.4%)
Moon Zenith Size 0.565°
(+6.5%)
Moon Magnitude -13.06
(+9.2%)
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
Full
20 Jul, 1921 00:07:24 UT
Full Moon
Sun Dist 152,004,616 km
(+1.6%)
Sun Size 0.525°
(-1.6%)
Moon Dist 405,595 km
(+6.0%)
Moon Geo Size 0.491°
(-5.9%)
Moon Zenith Size 0.498°
(-6.0%)
Moon Magnitude -12.80
(-14.5%)
 
21
 
 
Apo
21 Jul, 1921 10:27:35 UT
Apogee
Sun Dist 151,987,823 km
(+1.6%)
Sun Size 0.525°
(-1.6%)
Moon Dist 406,305 km
(+6.2%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.498°
(-6.2%)
Moon Magnitude -12.80
(-14.8%)
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
August
1
 
 
 
2
 
 
 
3
 
New
3 Aug, 1921 20:16:59 UT
New Moon
Sun Dist 151,770,994 km
(+1.4%)
Sun Size 0.525°
(-1.4%)
Moon Dist 357,153 km
(-6.7%)
Moon Geo Size 0.557°
(+6.8%)
Moon Zenith Size 0.567°
(+7.0%)
Moon Magnitude -13.08
(+10.6%)
Peri
3 Aug, 1921 21:47:17 UT
Perigee
Sun Dist 151,769,663 km
(+1.4%)
Sun Size 0.525°
(-1.4%)
Moon Dist 357,149 km
(-6.7%)
Moon Geo Size 0.557°
(+6.9%)
Moon Zenith Size 0.567°
(+7.0%)
Moon Magnitude -13.08
(+10.6%)
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
Apo
17 Aug, 1921 12:46:39 UT
Apogee
Sun Dist 151,415,818 km
(+1.2%)
Sun Size 0.527°
(-1.2%)
Moon Dist 406,327 km
(+6.2%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.498°
(-6.2%)
Moon Magnitude -12.80
(-14.1%)
18
 
Full
18 Aug, 1921 15:28:02 UT
Full Moon
Sun Dist 151,382,964 km
(+1.2%)
Sun Size 0.527°
(-1.2%)
Moon Dist 405,906 km
(+6.1%)
Moon Geo Size 0.490°
(-6.0%)
Moon Zenith Size 0.498°
(-6.1%)
Moon Magnitude -12.81
(-13.9%)
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
September
1
 
 
Peri
1 Sep, 1921 07:19:47 UT
Perigee
Sun Dist 150,940,798 km
(+0.9%)
Sun Size 0.528°
(-0.9%)
Moon Dist 358,373 km
(-6.3%)
Moon Geo Size 0.555°
(+6.5%)
Moon Zenith Size 0.565°
(+6.6%)
Moon Magnitude -13.08
(+11.1%)
2
 
New
2 Sep, 1921 03:32:38 UT
New Moon
Sun Dist 150,910,395 km
(+0.9%)
Sun Size 0.528°
(-0.9%)
Moon Dist 359,031 km
(-6.2%)
Moon Geo Size 0.554°
(+6.3%)
Moon Zenith Size 0.564°
(+6.4%)
Moon Magnitude -13.08
(+10.7%)
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
Apo
13 Sep, 1921 19:50:05 UT
Apogee
Sun Dist 150,453,645 km
(+0.6%)
Sun Size 0.530°
(-0.6%)
Moon Dist 405,738 km
(+6.0%)
Moon Geo Size 0.491°
(-5.9%)
Moon Zenith Size 0.498°
(-6.0%)
Moon Magnitude -12.82
(-12.8%)
14
 
 
 
15
 
 
 
16
 
 
 
17
 
Full
17 Sep, 1921 07:19:41 UT
Full Moon
Sun Dist 150,311,309 km
(+0.5%)
Sun Size 0.531°
(-0.5%)
Moon Dist 401,197 km
(+4.8%)
Moon Geo Size 0.496°
(-4.9%)
Moon Zenith Size 0.504°
(-5.0%)
Moon Magnitude -12.85
(-10.6%)
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
Peri
29 Sep, 1921 13:53:29 UT
Perigee
Sun Dist 149,803,591 km
(+0.1%)
Sun Size 0.532°
(-0.1%)
Moon Dist 362,219 km
(-5.3%)
Moon Geo Size 0.550°
(+5.4%)
Moon Zenith Size 0.559°
(+5.4%)
Moon Magnitude -13.08
(+10.4%)
30
 
 
 
October
1
1 Oct, 1921 UT
Total Solar Eclipse
Moon Size at
Max Eclipse		 0.548°
(+3.4%)
New
1 Oct, 1921 12:26:05 UT
New Moon
Sun Dist 149,720,897 km
(+0.1%)
Sun Size 0.533°
(-0.1%)
Moon Dist 365,126 km
(-4.6%)
Moon Geo Size 0.545°
(+4.5%)
Moon Zenith Size 0.555°
(+4.6%)
Moon Magnitude -13.06
(+8.8%)
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
Apo
11 Oct, 1921 10:46:20 UT
Apogee
Sun Dist 149,287,450 km
(-0.2%)
Sun Size 0.534°
(+0.2%)
Moon Dist 404,854 km
(+5.8%)
Moon Geo Size 0.492°
(-5.7%)
Moon Zenith Size 0.499°
(-5.8%)
Moon Magnitude -12.84
(-11.0%)
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
16 Oct, 1921 UT
Partial Lunar Eclipse
Moon Size at
Max Eclipse		 0.516°
(-2.8%)
Full
16 Oct, 1921 22:59:14 UT
Full Moon
Sun Dist 149,050,893 km
(-0.4%)
Sun Size 0.535°
(+0.4%)
Moon Dist 392,328 km
(+2.5%)
Moon Geo Size 0.507°
(-2.7%)
Moon Zenith Size 0.516°
(-2.8%)
Moon Magnitude -12.91
(-5.0%)
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
Peri
27 Oct, 1921 06:31:31 UT
Perigee
Sun Dist 148,634,186 km
(-0.7%)
Sun Size 0.537°
(+0.6%)
Moon Dist 367,533 km
(-4.0%)
Moon Geo Size 0.542°
(+3.8%)
Moon Zenith Size 0.551°
(+3.9%)
Moon Magnitude -13.06
(+8.9%)
28
 
 
 
29
 
 
 
30
 
New
30 Oct, 1921 23:38:27 UT
New Moon
Sun Dist 148,489,554 km
(-0.8%)
Sun Size 0.537°
(+0.7%)
Moon Dist 374,631 km
(-2.1%)
Moon Geo Size 0.531°
(+1.9%)
Moon Zenith Size 0.540°
(+1.9%)
Moon Magnitude -13.02
(+5.0%)
 
31
 
 
 
November
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
Apo
8 Nov, 1921 06:12:24 UT
Apogee
Sun Dist 148,175,614 km
(-1.0%)
Sun Size 0.538°
(+1.0%)
Moon Dist 404,318 km
(+5.7%)
Moon Geo Size 0.492°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.86
(-9.4%)
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
Full
15 Nov, 1921 13:38:43 UT
Full Moon
Sun Dist 147,922,359 km
(-1.1%)
Sun Size 0.539°
(+1.1%)
Moon Dist 381,167 km
(-0.4%)
Moon Geo Size 0.522°
(+0.1%)
Moon Zenith Size 0.531°
(+0.1%)
Moon Magnitude -12.99
(+2.2%)
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
Peri
21 Nov, 1921 09:50:07 UT
Perigee
Sun Dist 147,745,667 km
(-1.3%)
Sun Size 0.540°
(+1.3%)
Moon Dist 370,010 km
(-3.3%)
Moon Geo Size 0.538°
(+3.1%)
Moon Zenith Size 0.547°
(+3.2%)
Moon Magnitude -13.06
(+8.8%)
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
New
29 Nov, 1921 13:25:19 UT
New Moon
Sun Dist 147,532,143 km
(-1.4%)
Sun Size 0.541°
(+1.4%)
Moon Dist 385,892 km
(+0.8%)
Moon Geo Size 0.516°
(-1.1%)
Moon Zenith Size 0.524°
(-1.1%)
Moon Magnitude -12.97
(+0.3%)
 
30
 
 
 
December
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
Apo
6 Dec, 1921 03:18:10 UT
Apogee
Sun Dist 147,381,738 km
(-1.5%)
Sun Size 0.541°
(+1.5%)
Moon Dist 404,579 km
(+5.7%)
Moon Geo Size 0.492°
(-5.7%)
Moon Zenith Size 0.500°
(-5.8%)
Moon Magnitude -12.87
(-8.6%)
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
Full
15 Dec, 1921 02:50:12 UT
Full Moon
Sun Dist 147,222,577 km
(-1.6%)
Sun Size 0.542°
(+1.6%)
Moon Dist 370,134 km
(-3.3%)
Moon Geo Size 0.538°
(+3.1%)
Moon Zenith Size 0.547°
(+3.2%)
Moon Magnitude -13.07
(+9.5%)
 
16
 
 
 
17
 
 
Peri
17 Dec, 1921 21:25:35 UT
Perigee
Sun Dist 147,187,721 km
(-1.6%)
Sun Size 0.542°
(+1.6%)
Moon Dist 365,199 km
(-4.6%)
Moon Geo Size 0.545°
(+4.5%)
Moon Zenith Size 0.555°
(+4.6%)
Moon Magnitude -13.10
(+12.5%)
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
New
29 Dec, 1921 05:39:02 UT
New Moon
Sun Dist 147,109,240 km
(-1.7%)
Sun Size 0.542°
(+1.7%)
Moon Dist 396,546 km
(+3.6%)
Moon Geo Size 0.502°
(-3.8%)
Moon Zenith Size 0.510°
(-3.8%)
Moon Magnitude -12.92
(-4.5%)
 
30
 
 
 
31
 
 
 

Key to Fields

Full Moon
The moment in the Moon's orbit when it is exactly opposite the Earth from the Sun. From our perspective, the Moon appears completely illuminated at this point. In practice, the Moon will appear full for a day or so on either side of this moment.
New Moon
The moment in the Moon's orbit when it is exactly between the Earth and the Sun. From our perspective, the Moon appears completely dark at this point, but in any case it is too close to the Sun to be seen. In practice, the Moon will be invisible for a day or so on either side of this moment.
Perigee
The moment in the Moon's elliptical orbit when it is closest to the Earth.
Apogee
The moment in the Moon's elliptical orbit when it is farthest from the Earth.
Sun/Moon Distance
The distance from the centre of the Earth to the Sun/Moon, in km. The percentage figure represents how this distance compares to the average.
Sun Size
The angular diameter of the Sun, in degrees. The percentage figure represents the diameter of the Sun compared to the average.
Moon Geo Size
The angular diameter of the Moon, as it would be seen from the centre of the Earth ("geocentric"). This is essentially the same size that you would see if the Moon was on the horizon, for example at the start or end of a solar eclipse. The percentage figure represents the diameter of the Moon compared to the average geocentric diameter.
Moon Zenith Size
The angular diameter of the Moon, as it would be seen from directly beneath it; that is, when it is directly overhead. This is larger than the geocentric size, as you are closer to the Moon by half the diameter of the Earth. The percentage figure represents the diameter of the Moon compared to the average zenith diameter.
Moon Magnitude
The magnitude of the Moon. Magnitude is a measure of an object's brightness, used by astronomers. It uses a logarithmic scale, and counts backwards — smaller numbers, even down to negative numbers, indicate brighter objects. So, an object of magnitude -13 is 2.5 times brighter than an object of magnitude -12. Magnitudes shown here do not take account of the phase of the Moon; they represent what you would see if the Moon was full. The percentage figure represents the actual brightness of the Moon compared to its average brightness.
Eclipse
If an eclipse occurs in conjunction with the given Moon event, it is displayed as an icon. Click on this icon go to the Eclipse's page; you can hover over it to see data about the eclipse, including the angular diameter of the Moon at the place and time of maximum eclipse. This can be quite different to the Moon at the moment of New or Full Moon, as the place and time of maximum eclipse do not exactly match the place and time where the full Moon is exactly overhead. The percentage figure represents the diameter of the Moon compared to the average maximum eclipse Moon diameter.