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, 1831

Month Sun Mon Tue Wed Thu Fri Sat
January
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
Apo
8 Jan, 1831 10:21:45 UT
Apogee
Sun Dist 147,109,099 km
(-1.7%)
Sun Size 0.542°
(+1.7%)
Moon Dist 405,070 km
(+5.9%)
Moon Geo Size 0.491°
(-5.8%)
Moon Zenith Size 0.499°
(-5.9%)
Moon Magnitude -12.87
(-8.5%)
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
New
14 Jan, 1831 01:46:28 UT
New Moon
Sun Dist 147,154,968 km
(-1.6%)
Sun Size 0.542°
(+1.7%)
Moon Dist 391,708 km
(+2.4%)
Moon Geo Size 0.508°
(-2.6%)
Moon Zenith Size 0.516°
(-2.6%)
Moon Magnitude -12.95
(-2.2%)
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
Peri
24 Jan, 1831 06:23:32 UT
Perigee
Sun Dist 147,285,478 km
(-1.6%)
Sun Size 0.541°
(+1.6%)
Moon Dist 367,889 km
(-3.9%)
Moon Geo Size 0.541°
(+3.7%)
Moon Zenith Size 0.550°
(+3.8%)
Moon Magnitude -13.08
(+10.7%)
25
 
 
 
26
 
 
 
27
 
 
 
28
 
Full
28 Jan, 1831 02:46:48 UT
Full Moon
Sun Dist 147,355,246 km
(-1.5%)
Sun Size 0.541°
(+1.5%)
Moon Dist 375,255 km
(-1.9%)
Moon Geo Size 0.530°
(+1.7%)
Moon Zenith Size 0.539°
(+1.7%)
Moon Magnitude -13.04
(+6.3%)
 
29
 
 
 
30
 
 
 
31
 
 
 
February
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
Apo
5 Feb, 1831 07:12:39 UT
Apogee
Sun Dist 147,545,136 km
(-1.4%)
Sun Size 0.541°
(+1.4%)
Moon Dist 404,419 km
(+5.7%)
Moon Geo Size 0.492°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.87
(-8.7%)
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
12 Feb, 1831 UT
Annular Solar Eclipse
Moon Size at
Max Eclipse		 0.529°
(-0.2%)
New
12 Feb, 1831 17:13:36 UT
New Moon
Sun Dist 147,752,917 km
(-1.2%)
Sun Size 0.540°
(+1.3%)
Moon Dist 380,345 km
(-0.6%)
Moon Geo Size 0.523°
(+0.3%)
Moon Zenith Size 0.532°
(+0.3%)
Moon Magnitude -13.00
(+2.9%)
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
Peri
18 Feb, 1831 04:18:51 UT
Perigee
Sun Dist 147,919,431 km
(-1.1%)
Sun Size 0.539°
(+1.1%)
Moon Dist 369,765 km
(-3.4%)
Moon Geo Size 0.538°
(+3.2%)
Moon Zenith Size 0.548°
(+3.3%)
Moon Magnitude -13.06
(+8.6%)
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
26 Feb, 1831 UT
Partial Lunar Eclipse
Moon Size at
Max Eclipse		 0.523°
(-1.3%)
Full
26 Feb, 1831 17:03:19 UT
Full Moon
Sun Dist 148,207,486 km
(-0.9%)
Sun Size 0.538°
(+0.9%)
Moon Dist 386,741 km
(+1.1%)
Moon Geo Size 0.515°
(-1.3%)
Moon Zenith Size 0.523°
(-1.4%)
Moon Magnitude -12.96
(-1.1%)
 
27
 
 
 
28
 
 
 
March
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
Apo
5 Mar, 1831 03:53:21 UT
Apogee
Sun Dist 148,453,386 km
(-0.8%)
Sun Size 0.537°
(+0.8%)
Moon Dist 404,554 km
(+5.7%)
Moon Geo Size 0.492°
(-5.7%)
Moon Zenith Size 0.500°
(-5.8%)
Moon Magnitude -12.86
(-9.9%)
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
New
14 Mar, 1831 05:58:51 UT
New Moon
Sun Dist 148,823,799 km
(-0.5%)
Sun Size 0.536°
(+0.5%)
Moon Dist 369,600 km
(-3.4%)
Moon Geo Size 0.539°
(+3.3%)
Moon Zenith Size 0.548°
(+3.3%)
Moon Magnitude -13.05
(+7.4%)
 
15
 
 
 
16
 
 
Peri
16 Mar, 1831 22:50:08 UT
Perigee
Sun Dist 148,935,240 km
(-0.5%)
Sun Size 0.535°
(+0.4%)
Moon Dist 364,863 km
(-4.6%)
Moon Geo Size 0.546°
(+4.6%)
Moon Zenith Size 0.555°
(+4.7%)
Moon Magnitude -13.07
(+10.1%)
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
Full
28 Mar, 1831 08:26:54 UT
Full Moon
Sun Dist 149,412,863 km
(-0.1%)
Sun Size 0.534°
(+0.1%)
Moon Dist 397,119 km
(+3.8%)
Moon Geo Size 0.501°
(-3.9%)
Moon Zenith Size 0.509°
(-4.0%)
Moon Magnitude -12.88
(-7.7%)
 
29
 
 
 
30
 
 
 
31
 
 
 
April
1
 
 
Apo
1 Apr, 1831 21:35:30 UT
Apogee
Sun Dist 149,610,978 km
(-0.0%)
Sun Size 0.533°
(-0.0%)
Moon Dist 405,328 km
(+5.9%)
Moon Geo Size 0.491°
(-5.8%)
Moon Zenith Size 0.499°
(-5.9%)
Moon Magnitude -12.84
(-11.6%)
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
New
12 Apr, 1831 16:01:05 UT
New Moon
Sun Dist 150,079,879 km
(+0.3%)
Sun Size 0.531°
(-0.3%)
Moon Dist 361,578 km
(-5.5%)
Moon Geo Size 0.551°
(+5.5%)
Moon Zenith Size 0.560°
(+5.6%)
Moon Magnitude -13.08
(+10.4%)
 
13
 
 
 
14
 
 
Peri
14 Apr, 1831 00:30:28 UT
Perigee
Sun Dist 150,136,707 km
(+0.3%)
Sun Size 0.531°
(-0.4%)
Moon Dist 359,987 km
(-5.9%)
Moon Geo Size 0.553°
(+6.0%)
Moon Zenith Size 0.563°
(+6.1%)
Moon Magnitude -13.09
(+11.3%)
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
Full
27 Apr, 1831 00:17:00 UT
Full Moon
Sun Dist 150,655,277 km
(+0.7%)
Sun Size 0.529°
(-0.7%)
Moon Dist 404,142 km
(+5.6%)
Moon Geo Size 0.493°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.83
(-12.3%)
 
28
 
 
 
29
 
 
Apo
29 Apr, 1831 08:55:05 UT
Apogee
Sun Dist 150,746,509 km
(+0.8%)
Sun Size 0.529°
(-0.8%)
Moon Dist 406,123 km
(+6.1%)
Moon Geo Size 0.490°
(-6.0%)
Moon Zenith Size 0.498°
(-6.1%)
Moon Magnitude -12.81
(-13.3%)
30
 
 
 
May
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
New
11 May, 1831 23:57:20 UT
New Moon
Sun Dist 151,204,722 km
(+1.1%)
Sun Size 0.527°
(-1.1%)
Moon Dist 357,507 km
(-6.6%)
Moon Geo Size 0.557°
(+6.7%)
Moon Zenith Size 0.567°
(+6.9%)
Moon Magnitude -13.09
(+11.2%)
 
12
 
 
Peri
12 May, 1831 09:21:34 UT
Perigee
Sun Dist 151,217,543 km
(+1.1%)
Sun Size 0.527°
(-1.1%)
Moon Dist 357,359 km
(-6.6%)
Moon Geo Size 0.557°
(+6.8%)
Moon Zenith Size 0.567°
(+6.9%)
Moon Magnitude -13.09
(+11.3%)
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
Full
26 May, 1831 15:57:22 UT
Full Moon
Sun Dist 151,622,276 km
(+1.3%)
Sun Size 0.526°
(-1.3%)
Moon Dist 406,416 km
(+6.2%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.497°
(-6.2%)
Moon Magnitude -12.80
(-14.4%)
Apo
26 May, 1831 12:05:00 UT
Apogee
Sun Dist 151,618,230 km
(+1.3%)
Sun Size 0.526°
(-1.3%)
Moon Dist 406,424 km
(+6.2%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.497°
(-6.2%)
Moon Magnitude -12.80
(-14.4%)
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
June
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
Peri
9 Jun, 1831 19:01:14 UT
Perigee
Sun Dist 151,923,545 km
(+1.5%)
Sun Size 0.525°
(-1.5%)
Moon Dist 357,584 km
(-6.6%)
Moon Geo Size 0.557°
(+6.7%)
Moon Zenith Size 0.567°
(+6.8%)
Moon Magnitude -13.07
(+10.1%)
10
 
New
10 Jun, 1831 06:50:28 UT
New Moon
Sun Dist 151,931,436 km
(+1.5%)
Sun Size 0.525°
(-1.5%)
Moon Dist 357,816 km
(-6.5%)
Moon Geo Size 0.556°
(+6.7%)
Moon Zenith Size 0.566°
(+6.8%)
Moon Magnitude -13.07
(+10.0%)
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
Apo
22 Jun, 1831 16:49:04 UT
Apogee
Sun Dist 152,066,024 km
(+1.6%)
Sun Size 0.524°
(-1.6%)
Moon Dist 406,077 km
(+6.1%)
Moon Geo Size 0.490°
(-6.0%)
Moon Zenith Size 0.498°
(-6.1%)
Moon Magnitude -12.80
(-14.8%)
23
 
 
 
24
 
 
 
25
 
Full
25 Jun, 1831 07:02:06 UT
Full Moon
Sun Dist 152,081,729 km
(+1.6%)
Sun Size 0.524°
(-1.6%)
Moon Dist 403,624 km
(+5.5%)
Moon Geo Size 0.493°
(-5.5%)
Moon Zenith Size 0.501°
(-5.5%)
Moon Magnitude -12.81
(-13.7%)
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
July
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
Peri
8 Jul, 1831 02:09:54 UT
Perigee
Sun Dist 152,100,717 km
(+1.7%)
Sun Size 0.524°
(-1.6%)
Moon Dist 360,481 km
(-5.8%)
Moon Geo Size 0.552°
(+5.9%)
Moon Zenith Size 0.562°
(+6.0%)
Moon Magnitude -13.05
(+8.1%)
9
 
New
9 Jul, 1831 13:52:12 UT
New Moon
Sun Dist 152,094,568 km
(+1.7%)
Sun Size 0.524°
(-1.6%)
Moon Dist 362,333 km
(-5.3%)
Moon Geo Size 0.549°
(+5.3%)
Moon Zenith Size 0.559°
(+5.4%)
Moon Magnitude -13.04
(+7.0%)
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
Apo
20 Jul, 1831 05:14:17 UT
Apogee
Sun Dist 151,995,484 km
(+1.6%)
Sun Size 0.525°
(-1.6%)
Moon Dist 405,211 km
(+5.9%)
Moon Geo Size 0.491°
(-5.8%)
Moon Zenith Size 0.499°
(-5.9%)
Moon Magnitude -12.80
(-14.3%)
21
 
 
 
22
 
 
 
23
 
 
 
24
 
Full
24 Jul, 1831 21:10:56 UT
Full Moon
Sun Dist 151,928,748 km
(+1.5%)
Sun Size 0.525°
(-1.5%)
Moon Dist 396,452 km
(+3.6%)
Moon Geo Size 0.502°
(-3.7%)
Moon Zenith Size 0.510°
(-3.8%)
Moon Magnitude -12.85
(-10.4%)
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
August
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
Peri
5 Aug, 1831 00:57:45 UT
Perigee
Sun Dist 151,723,480 km
(+1.4%)
Sun Size 0.526°
(-1.4%)
Moon Dist 365,194 km
(-4.6%)
Moon Geo Size 0.545°
(+4.5%)
Moon Zenith Size 0.555°
(+4.6%)
Moon Magnitude -13.03
(+5.9%)
6
 
 
 
7
7 Aug, 1831 UT
Total Solar Eclipse
Moon Size at
Max Eclipse		 0.544°
(+2.6%)
New
7 Aug, 1831 22:08:49 UT
New Moon
Sun Dist 151,656,624 km
(+1.4%)
Sun Size 0.526°
(-1.4%)
Moon Dist 370,380 km
(-3.2%)
Moon Geo Size 0.537°
(+3.0%)
Moon Zenith Size 0.547°
(+3.1%)
Moon Magnitude -13.00
(+3.0%)
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
Apo
16 Aug, 1831 22:09:26 UT
Apogee
Sun Dist 151,407,872 km
(+1.2%)
Sun Size 0.527°
(-1.2%)
Moon Dist 404,404 km
(+5.7%)
Moon Geo Size 0.492°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.81
(-13.3%)
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
 
 
22
 
 
 
23
23 Aug, 1831 UT
Partial Lunar Eclipse
Moon Size at
Max Eclipse		 0.524°
(-1.3%)
Full
23 Aug, 1831 10:07:58 UT
Full Moon
Sun Dist 151,202,274 km
(+1.1%)
Sun Size 0.527°
(-1.1%)
Moon Dist 386,378 km
(+1.0%)
Moon Geo Size 0.515°
(-1.2%)
Moon Zenith Size 0.524°
(-1.3%)
Moon Magnitude -12.92
(-4.8%)
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
Peri
31 Aug, 1831 16:12:42 UT
Perigee
Sun Dist 150,922,978 km
(+0.9%)
Sun Size 0.528°
(-0.9%)
Moon Dist 369,519 km
(-3.4%)
Moon Geo Size 0.539°
(+3.3%)
Moon Zenith Size 0.548°
(+3.3%)
Moon Magnitude -13.02
(+4.5%)
September
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
 
 
6
 
New
6 Sep, 1831 08:31:54 UT
New Moon
Sun Dist 150,714,165 km
(+0.7%)
Sun Size 0.529°
(-0.7%)
Moon Dist 380,741 km
(-0.5%)
Moon Geo Size 0.523°
(+0.2%)
Moon Zenith Size 0.532°
(+0.2%)
Moon Magnitude -12.96
(-1.3%)
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
Apo
13 Sep, 1831 17:12:00 UT
Apogee
Sun Dist 150,419,294 km
(+0.5%)
Sun Size 0.530°
(-0.5%)
Moon Dist 404,281 km
(+5.7%)
Moon Geo Size 0.492°
(-5.6%)
Moon Zenith Size 0.500°
(-5.7%)
Moon Magnitude -12.83
(-12.1%)
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
Full
21 Sep, 1831 21:48:49 UT
Full Moon
Sun Dist 150,075,033 km
(+0.3%)
Sun Size 0.531°
(-0.3%)
Moon Dist 375,378 km
(-1.9%)
Moon Geo Size 0.530°
(+1.7%)
Moon Zenith Size 0.539°
(+1.7%)
Moon Magnitude -13.00
(+2.4%)
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
Peri
25 Sep, 1831 20:23:10 UT
Perigee
Sun Dist 149,909,519 km
(+0.2%)
Sun Size 0.532°
(-0.2%)
Moon Dist 367,762 km
(-3.9%)
Moon Geo Size 0.541°
(+3.8%)
Moon Zenith Size 0.551°
(+3.8%)
Moon Magnitude -13.04
(+6.9%)
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
October
1
 
 
 
2
 
 
 
3
 
 
 
4
 
 
 
5
 
New
5 Oct, 1831 21:33:21 UT
New Moon
Sun Dist 149,484,808 km
(-0.1%)
Sun Size 0.534°
(+0.1%)
Moon Dist 391,623 km
(+2.3%)
Moon Geo Size 0.508°
(-2.6%)
Moon Zenith Size 0.517°
(-2.6%)
Moon Magnitude -12.91
(-5.2%)
 
6
 
 
 
7
 
 
 
8
 
 
 
9
 
 
 
10
 
 
 
11
 
 
Apo
11 Oct, 1831 12:46:45 UT
Apogee
Sun Dist 149,239,974 km
(-0.3%)
Sun Size 0.534°
(+0.2%)
Moon Dist 404,978 km
(+5.8%)
Moon Geo Size 0.492°
(-5.8%)
Moon Zenith Size 0.499°
(-5.9%)
Moon Magnitude -12.84
(-11.0%)
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
 
 
20
 
 
 
21
 
Full
21 Oct, 1831 08:29:15 UT
Full Moon
Sun Dist 148,819,514 km
(-0.5%)
Sun Size 0.536°
(+0.5%)
Moon Dist 365,553 km
(-4.5%)
Moon Geo Size 0.545°
(+4.4%)
Moon Zenith Size 0.554°
(+4.5%)
Moon Magnitude -13.07
(+9.8%)
 
22
 
 
 
23
 
 
Peri
23 Oct, 1831 09:13:33 UT
Perigee
Sun Dist 148,736,686 km
(-0.6%)
Sun Size 0.536°
(+0.6%)
Moon Dist 362,402 km
(-5.3%)
Moon Geo Size 0.549°
(+5.3%)
Moon Zenith Size 0.559°
(+5.4%)
Moon Magnitude -13.09
(+11.9%)
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
31
 
 
 
November
1
 
 
 
2
 
 
 
3
 
 
 
4
 
New
4 Nov, 1831 13:22:36 UT
New Moon
Sun Dist 148,270,483 km
(-0.9%)
Sun Size 0.538°
(+0.9%)
Moon Dist 400,793 km
(+4.7%)
Moon Geo Size 0.497°
(-4.8%)
Moon Zenith Size 0.505°
(-4.9%)
Moon Magnitude -12.88
(-8.0%)
 
5
 
 
 
6
 
 
 
7
 
 
 
8
 
 
Apo
8 Nov, 1831 06:07:38 UT
Apogee
Sun Dist 148,135,514 km
(-1.0%)
Sun Size 0.538°
(+1.0%)
Moon Dist 405,990 km
(+6.1%)
Moon Geo Size 0.490°
(-6.0%)
Moon Zenith Size 0.498°
(-6.1%)
Moon Magnitude -12.85
(-10.1%)
9
 
 
 
10
 
 
 
11
 
 
 
12
 
 
 
13
 
 
 
14
 
 
 
15
 
 
 
16
 
 
 
17
 
 
 
18
 
 
 
19
 
Full
19 Nov, 1831 18:43:20 UT
Full Moon
Sun Dist 147,750,788 km
(-1.3%)
Sun Size 0.540°
(+1.3%)
Moon Dist 358,789 km
(-6.2%)
Moon Geo Size 0.555°
(+6.4%)
Moon Zenith Size 0.565°
(+6.5%)
Moon Magnitude -13.13
(+15.7%)
 
20
 
 
Peri
20 Nov, 1831 16:00:25 UT
Perigee
Sun Dist 147,724,746 km
(-1.3%)
Sun Size 0.540°
(+1.3%)
Moon Dist 358,030 km
(-6.4%)
Moon Geo Size 0.556°
(+6.6%)
Moon Zenith Size 0.566°
(+6.7%)
Moon Magnitude -13.13
(+16.2%)
21
 
 
 
22
 
 
 
23
 
 
 
24
 
 
 
25
 
 
 
26
 
 
 
27
 
 
 
28
 
 
 
29
 
 
 
30
 
 
 
December
1
 
 
 
2
 
 
 
3
 
 
 
4
 
New
4 Dec, 1831 07:38:53 UT
New Moon
Sun Dist 147,390,708 km
(-1.5%)
Sun Size 0.541°
(+1.5%)
Moon Dist 406,019 km
(+6.1%)
Moon Geo Size 0.490°
(-6.0%)
Moon Zenith Size 0.498°
(-6.1%)
Moon Magnitude -12.86
(-9.2%)
 
5
 
 
Apo
5 Dec, 1831 15:09:35 UT
Apogee
Sun Dist 147,363,841 km
(-1.5%)
Sun Size 0.541°
(+1.5%)
Moon Dist 406,585 km
(+6.3%)
Moon Geo Size 0.490°
(-6.1%)
Moon Zenith Size 0.497°
(-6.2%)
Moon Magnitude -12.86
(-9.5%)
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Full
19 Dec, 1831 05:07:51 UT
Full Moon
Sun Dist 147,149,469 km
(-1.7%)
Sun Size 0.542°
(+1.7%)
Moon Dist 356,460 km
(-6.8%)
Moon Geo Size 0.558°
(+7.1%)
Moon Zenith Size 0.568°
(+7.2%)
Moon Magnitude -13.15
(+18.1%)
Peri
19 Dec, 1831 04:37:36 UT
Perigee
Sun Dist 147,149,683 km
(-1.7%)
Sun Size 0.542°
(+1.7%)
Moon Dist 356,460 km
(-6.8%)
Moon Geo Size 0.558°
(+7.1%)
Moon Zenith Size 0.568°
(+7.2%)
Moon Magnitude -13.15
(+18.1%)
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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.