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, 1917

Month Sun Mon Tue Wed Thu Fri Sat
January
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
8 Jan, 1917 UT
Total Lunar Eclipse
Moon Size at
Max Eclipse		 0.499°
(-5.8%)
Full
8 Jan, 1917 07:41:36 UT
Full Moon
Sun Dist 147,103,537 km
(-1.7%)
Sun Size 0.542°
(+1.7%)
Moon Dist 404,840 km
(+5.8%)
Moon Geo Size 0.492°
(-5.7%)
Moon Zenith Size 0.499°
(-5.8%)
Moon Magnitude -12.87
(-8.4%)
 
9
 
 
 
10
 
 
Apo
10 Jan, 1917 08:24:48 UT
Apogee
Sun Dist 147,114,647 km
(-1.7%)
Sun Size 0.542°
(+1.7%)
Moon Dist 406,216 km
(+6.2%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.498°
(-6.2%)
Moon Magnitude -12.87
(-9.0%)
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
23 Jan, 1917 UT
Partial Solar Eclipse
Moon Size at
Max Eclipse		 0.558°
(+5.2%)
New
23 Jan, 1917 07:39:32 UT
New Moon
Sun Dist 147,264,909 km
(-1.6%)
Sun Size 0.542°
(+1.6%)
Moon Dist 356,877 km
(-6.7%)
Moon Geo Size 0.558°
(+6.9%)
Moon Zenith Size 0.568°
(+7.1%)
Moon Magnitude -13.15
(+17.7%)
Peri
23 Jan, 1917 12:25:54 UT
Perigee
Sun Dist 147,268,028 km
(-1.6%)
Sun Size 0.542°
(+1.6%)
Moon Dist 356,836 km
(-6.7%)
Moon Geo Size 0.558°
(+6.9%)
Moon Zenith Size 0.568°
(+7.1%)
Moon Magnitude -13.15
(+17.7%)
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
February
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
Apo
6 Feb, 1917 08:41:14 UT
Apogee
Sun Dist 147,542,769 km
(-1.4%)
Sun Size 0.541°
(+1.4%)
Moon Dist 406,364 km
(+6.2%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.498°
(-6.2%)
Moon Magnitude -12.86
(-9.6%)
7
 
Full
7 Feb, 1917 03:28:04 UT
Full Moon
Sun Dist 147,562,488 km
(-1.4%)
Sun Size 0.540°
(+1.4%)
Moon Dist 406,168 km
(+6.1%)
Moon Geo Size 0.490°
(-6.0%)
Moon Zenith Size 0.498°
(-6.1%)
Moon Magnitude -12.86
(-9.5%)
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
New
21 Feb, 1917 18:08:38 UT
New Moon
Sun Dist 148,005,198 km
(-1.1%)
Sun Size 0.539°
(+1.1%)
Moon Dist 358,256 km
(-6.4%)
Moon Geo Size 0.556°
(+6.5%)
Moon Zenith Size 0.566°
(+6.6%)
Moon Magnitude -13.13
(+15.6%)
Peri
21 Feb, 1917 01:13:33 UT
Perigee
Sun Dist 147,981,645 km
(-1.1%)
Sun Size 0.539°
(+1.1%)
Moon Dist 357,767 km
(-6.5%)
Moon Geo Size 0.556°
(+6.7%)
Moon Zenith Size 0.566°
(+6.8%)
Moon Magnitude -13.13
(+16.0%)
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
March
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
Apo
5 Mar, 1917 15:07:34 UT
Apogee
Sun Dist 148,424,997 km
(-0.8%)
Sun Size 0.537°
(+0.8%)
Moon Dist 405,926 km
(+6.1%)
Moon Geo Size 0.490°
(-6.0%)
Moon Zenith Size 0.498°
(-6.1%)
Moon Magnitude -12.85
(-10.5%)
6
 
 
 
7
 
 
 
8
 
Full
8 Mar, 1917 21:57:51 UT
Full Moon
Sun Dist 148,551,831 km
(-0.7%)
Sun Size 0.537°
(+0.7%)
Moon Dist 401,969 km
(+5.0%)
Moon Geo Size 0.495°
(-5.1%)
Moon Zenith Size 0.503°
(-5.1%)
Moon Magnitude -12.87
(-8.8%)
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
Peri
21 Mar, 1917 09:05:32 UT
Perigee
Sun Dist 149,071,298 km
(-0.4%)
Sun Size 0.535°
(+0.4%)
Moon Dist 361,602 km
(-5.5%)
Moon Geo Size 0.550°
(+5.5%)
Moon Zenith Size 0.560°
(+5.6%)
Moon Magnitude -13.09
(+11.9%)
22
 
 
 
23
 
New
23 Mar, 1917 04:04:44 UT
New Moon
Sun Dist 149,147,518 km
(-0.3%)
Sun Size 0.535°
(+0.3%)
Moon Dist 364,166 km
(-4.8%)
Moon Geo Size 0.547°
(+4.8%)
Moon Zenith Size 0.556°
(+4.9%)
Moon Magnitude -13.07
(+10.2%)
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
April
1
 
 
 
2
 
 
Apo
2 Apr, 1917 07:09:41 UT
Apogee
Sun Dist 149,574,641 km
(-0.0%)
Sun Size 0.533°
(+0.0%)
Moon Dist 404,994 km
(+5.8%)
Moon Geo Size 0.492°
(-5.8%)
Moon Zenith Size 0.499°
(-5.9%)
Moon Magnitude -12.84
(-11.4%)
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
Full
7 Apr, 1917 13:48:35 UT
Full Moon
Sun Dist 149,799,095 km
(+0.1%)
Sun Size 0.532°
(-0.1%)
Moon Dist 393,531 km
(+2.8%)
Moon Geo Size 0.506°
(-3.0%)
Moon Zenith Size 0.514°
(-3.1%)
Moon Magnitude -12.90
(-6.5%)
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
Peri
18 Apr, 1917 02:53:07 UT
Perigee
Sun Dist 150,252,192 km
(+0.4%)
Sun Size 0.531°
(-0.4%)
Moon Dist 366,835 km
(-4.1%)
Moon Geo Size 0.543°
(+4.0%)
Moon Zenith Size 0.552°
(+4.1%)
Moon Magnitude -13.04
(+7.0%)
19
 
 
 
20
 
 
 
21
 
New
21 Apr, 1917 14:00:56 UT
New Moon
Sun Dist 150,395,637 km
(+0.5%)
Sun Size 0.530°
(-0.5%)
Moon Dist 373,368 km
(-2.4%)
Moon Geo Size 0.533°
(+2.2%)
Moon Zenith Size 0.542°
(+2.2%)
Moon Magnitude -13.00
(+3.1%)
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
Apo
30 Apr, 1917 02:12:50 UT
Apogee
Sun Dist 150,725,896 km
(+0.7%)
Sun Size 0.529°
(-0.7%)
Moon Dist 404,250 km
(+5.6%)
Moon Geo Size 0.492°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.83
(-12.5%)
May
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
Full
7 May, 1917 02:42:56 UT
Full Moon
Sun Dist 150,980,842 km
(+0.9%)
Sun Size 0.528°
(-0.9%)
Moon Dist 382,956 km
(+0.1%)
Moon Geo Size 0.520°
(-0.3%)
Moon Zenith Size 0.528°
(-0.4%)
Moon Magnitude -12.94
(-2.8%)
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
Peri
13 May, 1917 18:23:28 UT
Perigee
Sun Dist 151,211,825 km
(+1.1%)
Sun Size 0.527°
(-1.1%)
Moon Dist 369,793 km
(-3.4%)
Moon Geo Size 0.538°
(+3.2%)
Moon Zenith Size 0.548°
(+3.2%)
Moon Magnitude -13.01
(+3.9%)
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
New
21 May, 1917 00:46:27 UT
New Moon
Sun Dist 151,440,299 km
(+1.2%)
Sun Size 0.527°
(-1.2%)
Moon Dist 384,139 km
(+0.4%)
Moon Geo Size 0.518°
(-0.7%)
Moon Zenith Size 0.527°
(-0.7%)
Moon Magnitude -12.93
(-4.0%)
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
Apo
27 May, 1917 21:17:25 UT
Apogee
Sun Dist 151,621,664 km
(+1.3%)
Sun Size 0.526°
(-1.3%)
Moon Dist 404,285 km
(+5.7%)
Moon Geo Size 0.492°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.81
(-13.5%)
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
June
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
Full
5 Jun, 1917 13:06:23 UT
Full Moon
Sun Dist 151,810,291 km
(+1.5%)
Sun Size 0.525°
(-1.5%)
Moon Dist 372,413 km
(-2.7%)
Moon Geo Size 0.535°
(+2.5%)
Moon Zenith Size 0.544°
(+2.5%)
Moon Magnitude -12.99
(+1.7%)
 
6
 
 
 
7
 
 
 
8
 
 
Peri
8 Jun, 1917 20:13:20 UT
Perigee
Sun Dist 151,873,102 km
(+1.5%)
Sun Size 0.525°
(-1.5%)
Moon Dist 366,203 km
(-4.3%)
Moon Geo Size 0.544°
(+4.2%)
Moon Zenith Size 0.553°
(+4.3%)
Moon Magnitude -13.02
(+5.1%)
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
19 Jun, 1917 UT
Partial Solar Eclipse
Moon Size at
Max Eclipse		 0.505°
(-4.9%)
New
19 Jun, 1917 13:01:53 UT
New Moon
Sun Dist 152,030,927 km
(+1.6%)
Sun Size 0.525°
(-1.6%)
Moon Dist 394,512 km
(+3.1%)
Moon Geo Size 0.505°
(-3.3%)
Moon Zenith Size 0.513°
(-3.3%)
Moon Magnitude -12.86
(-9.7%)
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
Apo
24 Jun, 1917 14:55:34 UT
Apogee
Sun Dist 152,072,297 km
(+1.6%)
Sun Size 0.524°
(-1.6%)
Moon Dist 405,081 km
(+5.9%)
Moon Geo Size 0.491°
(-5.8%)
Moon Zenith Size 0.499°
(-5.9%)
Moon Magnitude -12.80
(-14.4%)
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
July
1
 
 
 
2
 
 
 
3
 
 
 
4
4 Jul, 1917 UT
Total Lunar Eclipse
Moon Size at
Max Eclipse		 0.557°
(+5.0%)
Full
4 Jul, 1917 21:40:08 UT
Full Moon
Sun Dist 152,097,191 km
(+1.7%)
Sun Size 0.524°
(-1.6%)
Moon Dist 363,739 km
(-4.9%)
Moon Geo Size 0.547°
(+4.9%)
Moon Zenith Size 0.557°
(+5.0%)
Moon Magnitude -13.03
(+6.2%)
 
5
 
 
 
6
 
 
Peri
6 Jul, 1917 15:38:06 UT
Perigee
Sun Dist 152,095,497 km
(+1.7%)
Sun Size 0.524°
(-1.6%)
Moon Dist 361,289 km
(-5.6%)
Moon Geo Size 0.551°
(+5.6%)
Moon Zenith Size 0.561°
(+5.7%)
Moon Magnitude -13.05
(+7.6%)
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
19 Jul, 1917 UT
Partial Solar Eclipse
Moon Size at
Max Eclipse		 0.495°
(-6.7%)
New
19 Jul, 1917 02:59:37 UT
New Moon
Sun Dist 152,026,291 km
(+1.6%)
Sun Size 0.525°
(-1.6%)
Moon Dist 402,492 km
(+5.2%)
Moon Geo Size 0.495°
(-5.2%)
Moon Zenith Size 0.502°
(-5.3%)
Moon Magnitude -12.82
(-13.2%)
 
20
 
 
 
21
 
 
 
22
 
 
Apo
22 Jul, 1917 05:10:35 UT
Apogee
Sun Dist 151,989,229 km
(+1.6%)
Sun Size 0.525°
(-1.6%)
Moon Dist 406,070 km
(+6.1%)
Moon Geo Size 0.490°
(-6.0%)
Moon Zenith Size 0.498°
(-6.1%)
Moon Magnitude -12.80
(-14.7%)
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
August
1
 
 
 
2
 
 
 
3
 
Full
3 Aug, 1917 05:10:22 UT
Full Moon
Sun Dist 151,779,113 km
(+1.4%)
Sun Size 0.525°
(-1.4%)
Moon Dist 358,299 km
(-6.4%)
Moon Geo Size 0.556°
(+6.5%)
Moon Zenith Size 0.565°
(+6.6%)
Moon Magnitude -13.07
(+9.9%)
Peri
3 Aug, 1917 21:48:20 UT
Perigee
Sun Dist 151,764,666 km
(+1.4%)
Sun Size 0.526°
(-1.4%)
Moon Dist 357,837 km
(-6.5%)
Moon Geo Size 0.556°
(+6.6%)
Moon Zenith Size 0.566°
(+6.8%)
Moon Magnitude -13.07
(+10.2%)
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
New
17 Aug, 1917 18:20:34 UT
New Moon
Sun Dist 151,423,223 km
(+1.2%)
Sun Size 0.527°
(-1.2%)
Moon Dist 406,402 km
(+6.2%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.497°
(-6.2%)
Moon Magnitude -12.80
(-14.2%)
 
18
 
 
Apo
18 Aug, 1917 12:22:12 UT
Apogee
Sun Dist 151,401,065 km
(+1.2%)
Sun Size 0.527°
(-1.2%)
Moon Dist 406,593 km
(+6.3%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.497°
(-6.2%)
Moon Magnitude -12.80
(-14.2%)
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
September
1
 
Full
1 Sep, 1917 12:28:05 UT
Full Moon
Sun Dist 150,929,330 km
(+0.9%)
Sun Size 0.528°
(-0.9%)
Moon Dist 356,958 km
(-6.7%)
Moon Geo Size 0.558°
(+6.9%)
Moon Zenith Size 0.568°
(+7.0%)
Moon Magnitude -13.09
(+12.0%)
Peri
1 Sep, 1917 07:52:36 UT
Perigee
Sun Dist 150,936,240 km
(+0.9%)
Sun Size 0.528°
(-0.9%)
Moon Dist 356,921 km
(-6.7%)
Moon Geo Size 0.558°
(+6.9%)
Moon Zenith Size 0.568°
(+7.0%)
Moon Magnitude -13.09
(+12.0%)
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
Apo
14 Sep, 1917 14:53:18 UT
Apogee
Sun Dist 150,434,737 km
(+0.5%)
Sun Size 0.530°
(-0.6%)
Moon Dist 406,420 km
(+6.2%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.497°
(-6.2%)
Moon Magnitude -12.82
(-13.1%)
15
 
 
 
16
 
New
16 Sep, 1917 10:27:09 UT
New Moon
Sun Dist 150,361,224 km
(+0.5%)
Sun Size 0.530°
(-0.5%)
Moon Dist 405,277 km
(+5.9%)
Moon Geo Size 0.491°
(-5.8%)
Moon Zenith Size 0.499°
(-5.9%)
Moon Magnitude -12.82
(-12.5%)
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
Peri
29 Sep, 1917 17:50:20 UT
Perigee
Sun Dist 149,792,226 km
(+0.1%)
Sun Size 0.532°
(-0.1%)
Moon Dist 358,930 km
(-6.2%)
Moon Geo Size 0.555°
(+6.3%)
Moon Zenith Size 0.564°
(+6.4%)
Moon Magnitude -13.10
(+12.4%)
30
 
Full
30 Sep, 1917 20:30:46 UT
Full Moon
Sun Dist 149,744,322 km
(+0.1%)
Sun Size 0.533°
(-0.1%)
Moon Dist 360,061 km
(-5.9%)
Moon Geo Size 0.553°
(+6.0%)
Moon Zenith Size 0.563°
(+6.1%)
Moon Magnitude -13.09
(+11.8%)
 
October
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
Apo
12 Oct, 1917 00:34:52 UT
Apogee
Sun Dist 149,271,417 km
(-0.2%)
Sun Size 0.534°
(+0.2%)
Moon Dist 405,671 km
(+6.0%)
Moon Geo Size 0.491°
(-5.9%)
Moon Zenith Size 0.498°
(-6.0%)
Moon Magnitude -12.84
(-11.4%)
13
 
 
 
14
 
 
 
15
 
 
 
16
 
New
16 Oct, 1917 02:40:42 UT
New Moon
Sun Dist 149,098,631 km
(-0.3%)
Sun Size 0.535°
(+0.3%)
Moon Dist 399,180 km
(+4.3%)
Moon Geo Size 0.499°
(-4.4%)
Moon Zenith Size 0.507°
(-4.5%)
Moon Magnitude -12.88
(-8.2%)
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
Peri
27 Oct, 1917 22:37:52 UT
Perigee
Sun Dist 148,602,014 km
(-0.7%)
Sun Size 0.537°
(+0.7%)
Moon Dist 363,502 km
(-5.0%)
Moon Geo Size 0.548°
(+5.0%)
Moon Zenith Size 0.557°
(+5.1%)
Moon Magnitude -13.09
(+11.4%)
28
 
 
 
29
 
 
 
30
 
Full
30 Oct, 1917 06:18:52 UT
Full Moon
Sun Dist 148,509,711 km
(-0.7%)
Sun Size 0.537°
(+0.7%)
Moon Dist 367,335 km
(-4.0%)
Moon Geo Size 0.542°
(+3.9%)
Moon Zenith Size 0.551°
(+4.0%)
Moon Magnitude -13.07
(+9.2%)
 
31
 
 
 
November
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
Apo
8 Nov, 1917 17:38:59 UT
Apogee
Sun Dist 148,161,170 km
(-1.0%)
Sun Size 0.538°
(+1.0%)
Moon Dist 404,778 km
(+5.8%)
Moon Geo Size 0.492°
(-5.7%)
Moon Zenith Size 0.500°
(-5.8%)
Moon Magnitude -12.86
(-9.6%)
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
New
14 Nov, 1917 18:28:10 UT
New Moon
Sun Dist 147,957,387 km
(-1.1%)
Sun Size 0.539°
(+1.1%)
Moon Dist 389,310 km
(+1.7%)
Moon Geo Size 0.511°
(-2.0%)
Moon Zenith Size 0.520°
(-2.0%)
Moon Magnitude -12.95
(-2.0%)
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
Peri
24 Nov, 1917 06:14:33 UT
Perigee
Sun Dist 147,662,341 km
(-1.3%)
Sun Size 0.540°
(+1.3%)
Moon Dist 368,925 km
(-3.6%)
Moon Geo Size 0.540°
(+3.4%)
Moon Zenith Size 0.549°
(+3.5%)
Moon Magnitude -13.07
(+9.5%)
25
 
 
 
26
 
 
 
27
 
 
 
28
 
Full
28 Nov, 1917 18:41:05 UT
Full Moon
Sun Dist 147,540,939 km
(-1.4%)
Sun Size 0.541°
(+1.4%)
Moon Dist 377,714 km
(-1.3%)
Moon Geo Size 0.527°
(+1.0%)
Moon Zenith Size 0.536°
(+1.0%)
Moon Magnitude -13.02
(+4.7%)
 
29
 
 
 
30
 
 
 
December
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
Apo
6 Dec, 1917 14:15:58 UT
Apogee
Sun Dist 147,369,798 km
(-1.5%)
Sun Size 0.541°
(+1.5%)
Moon Dist 404,394 km
(+5.7%)
Moon Geo Size 0.492°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.87
(-8.5%)
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
14 Dec, 1917 UT
Annular Solar Eclipse
Moon Size at
Max Eclipse		 0.530°
(+0.0%)
New
14 Dec, 1917 09:17:03 UT
New Moon
Sun Dist 147,240,338 km
(-1.6%)
Sun Size 0.542°
(+1.6%)
Moon Dist 377,808 km
(-1.3%)
Moon Geo Size 0.527°
(+1.0%)
Moon Zenith Size 0.536°
(+1.0%)
Moon Magnitude -13.02
(+5.0%)
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
Peri
18 Dec, 1917 22:11:44 UT
Perigee
Sun Dist 147,180,043 km
(-1.6%)
Sun Size 0.542°
(+1.6%)
Moon Dist 369,014 km
(-3.6%)
Moon Geo Size 0.539°
(+3.4%)
Moon Zenith Size 0.549°
(+3.5%)
Moon Magnitude -13.07
(+10.2%)
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
28 Dec, 1917 UT
Total Lunar Eclipse
Moon Size at
Max Eclipse		 0.520°
(-2.0%)
Full
28 Dec, 1917 09:51:22 UT
Full Moon
Sun Dist 147,101,199 km
(-1.7%)
Sun Size 0.542°
(+1.7%)
Moon Dist 389,225 km
(+1.7%)
Moon Geo Size 0.511°
(-2.0%)
Moon Zenith Size 0.520°
(-2.0%)
Moon Magnitude -12.96
(-0.9%)
 
29
 
 
 
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.