www.eclipse-chasers.com
Eclipses in the Solar System
Author: Bill Kramer
Last update: July 18 2017

Solar System Moons Angular Size Table

-by Bill Kramer

Click here for the related Study - Do other planets see solar eclipses?


Moons tested

Planet name Radius (KM) Moons Distance to Sun
(KM)
Angular Size
(Degrees)
Earth63711150,000,0000.53147
Mars33902228,000,0000.34965
Jupiter6991150778,000,0000.10247
Saturn58232531,427,000,0000.05587
Uranus25362272,870,000,0000.02778
Neptune2462284,497,000,0000.01773

Comparing the angular sizes

Using data from the NASA Planetary Fact Sheets about the moons, the following table shows the angular size of the moon at the extremes of the orbit. The angular sizes are compared to the angular size of the Sun. The comparison is accomplished in terms of a ratio. Angular sizes of the moon are divided into the angular size of the Sun. If the ratio is greater than 1.0 then an annular eclipse event can take place. For ratios less than one, a total eclipse event can take place.

Math Details

For these results, the distance to the moon was supplied as seen from the center of the host planet. This value was used to simulate viewing from the poles and modified by the mean radius of the host planet to simulate observations at the equator. Each entry has four values for the angular sizes as seen from the host planet. The first two are from the perspective of an observer at the equator. The last two are for an observer at the poles. The two values for each are that for when the moon is closest (periapsis) and farthest (apoapsis).

Columns in table

Planet is the name of the planet. Other than Earth, all the planets have multiple moons. Moon is the name of the moon in orbit about the planet. Size is the size of the moon's radius in kilometers. Distance is the number of kilometers from the surface (or cloud tops) of the planet to the moon and has four values. The top value is the distance from the surface of the planet at the equator to the moon when the moon is closest. The second value is the distance from the surface of the planet at the equator to the moon when the moon is farthest. The third and fourth distances are from the center of the planet which is the same distance as would be seen from the poles for periapsis and apoapsis.Angular Size (moon) corresponds to the distance and is the apparent size of the moon as seen from the surface of the planet at the equator (top two values) and the poles (lower two values). Angular size is measured in degrees. Angular Size (Sun) is the apparent size of the Sun as seen from the planet measured in degrees. Ratio Sun/moon is the value of the the angular size of the Sun divided by the angular size of the moon. A value greater than one indicates the conditions for an annular eclipse. A value less than one indicates the conditions for a total solar eclipse. The top value is the ratio when the moon is closest to the surface of the planet at the equator. The second ratio when the moon is farthest from the surface of the planet at the equator. The third and fourth values are where the moon is closests (periapsis) and fartherst (apoapsis) from the poles.Ratio moon/Sun is the value of the inverse of the corresponding Sun/moon ratio. In this case a value greater than one indicates a total eclipse of the Sun and a value less than one is an annular type eclipse of the Sun as viewed from the surface of the planet.

The program is searching for where the ratios bridge the value of one. That is if any value is greater than one and another is less than one. Under those conditions, a total and annular eclipse are possible and this would be the most Earth-like.


= = = > Jump to summary

Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
EarthMoon1,737.1356,924
399,132
363,295
405,503
0.557696
0.498722
0.547916
0.490887
0.5314720.953
1.066
0.970
1.083
1.049
0.938
1.031
0.924
MarsPhobos11.15,846
6,130
9,236
9,520
0.217564
0.207512
0.137712
0.133615
0.3496541.607
1.685
2.539
2.617
0.622
0.593
0.394
0.382
MarsDeimos6.220,057
20,081
23,447
23,471
0.035422
0.035381
0.030301
0.030270
0.3496549.871
9.883
11.539
11.551
0.101
0.101
0.087
0.087
JupiterIo1,818.1350,202
353,576
420,113
423,487
0.594906
0.589228
0.495909
0.491957
0.1024700.172
0.174
0.207
0.208
5.806
5.750
4.840
4.801
JupiterEuropa1,560.7595,149
607,229
665,060
677,140
0.300501
0.294523
0.268912
0.264115
0.1024700.341
0.348
0.381
0.388
2.933
2.874
2.624
2.577
JupiterGanymede2,634.1999,419
1,001,559
1,069,330
1,071,470
0.302021
0.301375
0.282275
0.281711
0.1024700.339
0.340
0.363
0.364
2.947
2.941
2.755
2.749
JupiterCallisto2,408.41,799,610
1,825,968
1,869,521
1,895,879
0.153357
0.151143
0.147622
0.145570
0.1024700.668
0.678
0.694
0.704
1.497
1.475
1.441
1.421
JupiterAmalthea83.5110,945
112,033
180,856
181,944
0.086193
0.085356
0.052875
0.052558
0.1024701.189
1.201
1.938
1.950
0.841
0.833
0.516
0.513
JupiterHimalia67.09,533,569
13,246,609
9,603,480
13,316,520
0.000805
0.000580
0.000799
0.000577
0.102470127.240
176.796
128.173
177.729
0.008
0.006
0.008
0.006
JupiterElara43.09,122,509
14,217,669
9,192,420
14,287,580
0.000540
0.000347
0.000536
0.000345
0.102470189.709
295.667
191.163
297.120
0.005
0.003
0.005
0.003
JupiterPasiphae30.013,889,509
33,210,669
13,959,420
33,280,580
0.000248
0.000104
0.000246
0.000103
0.102470414.007
989.917
416.091
992.001
0.002
0.001
0.002
0.001
JupiterSinope19.017,885,089
29,855,089
17,955,000
29,925,000
0.000122
0.000073
0.000121
0.000073
0.102470841.744
1,405.099
845.034
1,408.390
0.001
0.001
0.001
0.001
JupiterLysithea18.010,337,449
12,962,729
10,407,360
13,032,640
0.000200
0.000159
0.000198
0.000158
0.102470513.551
643.971
517.024
647.444
0.002
0.002
0.002
0.002
JupiterCarme23.017,409,889
29,250,289
17,479,800
29,320,200
0.000151
0.000090
0.000151
0.000090
0.102470676.878
1,137.220
679.596
1,139.938
0.001
0.001
0.001
0.001
JupiterAnanke14.016,017,769
26,402,409
16,087,680
26,472,320
0.000100
0.000061
0.000100
0.000061
0.1024701,023.096
1,686.389
1,027.561
1,690.855
0.001
0.001
0.001
0.001
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
JupiterLeda10.09,268,209
12,931,969
9,338,120
13,001,880
0.000124
0.000089
0.000123
0.000088
0.102470828.778
1,156.397
835.029
1,162.649
0.001
0.001
0.001
0.001
JupiterTheba49.3147,995
155,983
217,906
225,894
0.038173
0.036218
0.025926
0.025009
0.1024702.684
2.829
3.952
4.097
0.373
0.353
0.253
0.244
JupiterAdrastea8.258,896
59,283
128,807
129,194
0.015955
0.015850
0.007295
0.007273
0.1024706.423
6.465
14.046
14.089
0.156
0.155
0.071
0.071
JupiterMetis21.558,063
58,115
127,974
128,026
0.042432
0.042394
0.019252
0.019244
0.1024702.415
2.417
5.323
5.325
0.414
0.414
0.188
0.188
JupiterCallirrhoe4.317,209,789
30,850,389
17,279,700
30,920,300
0.000029
0.000016
0.000029
0.000016
0.1024703,578.898
6,415.559
3,593.437
6,430.097
0.000
0.000
0.000
0.000
JupiterThemisto4.05,620,395
9,253,783
5,690,306
9,323,694
0.000082
0.000050
0.000081
0.000049
0.1024701,256.461
2,068.720
1,272.090
2,084.348
0.001
0.000
0.001
0.000
JupiterMegaclite2.713,716,079
33,764,099
13,785,990
33,834,010
0.000023
0.000009
0.000022
0.000009
0.1024704,542.642
11,182.366
4,565.796
11,205.520
0.000
0.000
0.000
0.000
JupiterTaygete2.517,426,729
29,153,449
17,496,640
29,223,360
0.000016
0.000010
0.000016
0.000010
0.1024706,233.302
10,427.789
6,258.308
10,452.795
0.000
0.000
0.000
0.000
JupiterChaldene1.917,593,249
28,626,929
17,663,160
28,696,840
0.000012
0.000008
0.000012
0.000008
0.1024708,280.084
13,472.973
8,312.987
13,505.876
0.000
0.000
0.000
0.000
JupiterHarpalyke2.216,248,119
25,832,059
16,318,030
25,901,970
0.000016
0.000010
0.000015
0.000010
0.1024706,604.238
10,499.742
6,632.654
10,528.158
0.000
0.000
0.000
0.000
JupiterKalyke2.617,780,149
29,240,029
17,850,060
29,309,940
0.000017
0.000010
0.000017
0.000010
0.1024706,115.111
10,056.497
6,139.155
10,080.542
0.000
0.000
0.000
0.000
JupiterIocaste2.616,563,229
25,836,949
16,633,140
25,906,860
0.000018
0.000012
0.000018
0.000012
0.1024705,696.577
8,886.079
5,720.621
8,910.123
0.000
0.000
0.000
0.000
JupiterErinome1.616,924,489
29,495,689
16,994,400
29,565,600
0.000011
0.000006
0.000011
0.000006
0.1024709,458.840
16,484.693
9,497.912
16,523.765
0.000
0.000
0.000
0.000
JupiterIsonoe1.917,089,669
29,210,509
17,159,580
29,280,420
0.000013
0.000007
0.000013
0.000007
0.1024708,043.079
13,747.629
8,075.982
13,780.532
0.000
0.000
0.000
0.000
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
JupiterPraxidike3.416,427,089
25,733,089
16,497,000
25,803,000
0.000024
0.000015
0.000024
0.000015
0.1024704,320.400
6,767.921
4,338.787
6,786.308
0.000
0.000
0.000
0.000
JupiterAutonoe2.015,274,729
30,665,449
15,344,640
30,735,360
0.000015
0.000007
0.000015
0.000007
0.1024706,829.451
13,710.763
6,860.709
13,742.021
0.000
0.000
0.000
0.000
JupiterThyone2.016,074,829
25,665,349
16,144,740
25,735,260
0.000014
0.000009
0.000014
0.000009
0.1024707,187.182
11,475.179
7,218.440
11,506.437
0.000
0.000
0.000
0.000
JupiterHermippe2.016,622,789
25,497,389
16,692,700
25,567,300
0.000014
0.000009
0.000014
0.000009
0.1024707,432.179
11,400.083
7,463.437
11,431.341
0.000
0.000
0.000
0.000
JupiterCarpo3.09,614,389
24,225,789
9,684,300
24,295,700
0.000036
0.000014
0.000035
0.000014
0.1024702,865.779
7,221.027
2,886.618
7,241.865
0.000
0.000
0.000
0.000
JupiterEuporie1.016,295,249
22,344,929
16,365,160
22,414,840
0.000007
0.000005
0.000007
0.000005
0.10247014,571.467
19,981.186
14,633.983
20,043.702
0.000
0.000
0.000
0.000
JupiterOrthosie1.014,827,769
26,472,409
14,897,680
26,542,320
0.000008
0.000004
0.000008
0.000004
0.10247013,259.224
23,672.044
13,321.739
23,734.559
0.000
0.000
0.000
0.000
JupiterEuanthe1.515,904,489
25,555,689
15,974,400
25,625,600
0.000011
0.000007
0.000011
0.000007
0.1024709,481.363
15,234.866
9,523.040
15,276.543
0.000
0.000
0.000
0.000
JupiterMneme2.016,217,199
25,782,979
16,287,110
25,852,890
0.000014
0.000009
0.000014
0.000009
0.1024707,250.837
11,527.772
7,282.095
11,559.030
0.000
0.000
0.000
0.000
JupiterThelxinoe2.016,413,729
25,766,449
16,483,640
25,836,360
0.000014
0.000009
0.000014
0.000009
0.1024707,338.707
11,520.382
7,369.965
11,551.639
0.000
0.000
0.000
0.000
JupiterHelike4.017,873,529
24,506,649
17,943,440
24,576,560
0.000026
0.000019
0.000026
0.000019
0.1024703,995.698
5,478.558
4,011.326
5,494.186
0.000
0.000
0.000
0.000
JupiterHerse2.018,407,689
27,646,489
18,477,600
27,716,400
0.000012
0.000008
0.000012
0.000008
0.1024708,230.222
12,360.962
8,261.480
12,392.220
0.000
0.000
0.000
0.000
JupiterEurydome1.516,487,969
29,112,209
16,557,880
29,182,120
0.000010
0.000006
0.000010
0.000006
0.1024709,829.200
17,355.063
9,870.878
17,396.740
0.000
0.000
0.000
0.000
JupiterArche1.516,921,219
28,798,959
16,991,130
28,868,870
0.000010
0.000006
0.000010
0.000006
0.10247010,087.480
17,168.321
10,129.157
17,209.998
0.000
0.000
0.000
0.000
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
JupiterPasithee1.016,377,289
29,682,889
16,447,200
29,752,800
0.000007
0.000004
0.000007
0.000004
0.10247014,644.829
26,542.905
14,707.344
26,605.421
0.000
0.000
0.000
0.000
JupiterKale1.017,112,889
29,187,289
17,182,800
29,257,200
0.000007
0.000004
0.000007
0.000004
0.10247015,302.614
26,099.732
15,365.130
26,162.248
0.000
0.000
0.000
0.000
JupiterAitne1.517,027,369
29,292,809
17,097,280
29,362,720
0.000010
0.000006
0.000010
0.000006
0.10247010,150.760
17,462.726
10,192.437
17,504.403
0.000
0.000
0.000
0.000
JupiterSponde1.016,091,209
30,748,969
16,161,120
30,818,880
0.000007
0.000004
0.000007
0.000004
0.10247014,389.012
27,496.211
14,451.527
27,558.726
0.000
0.000
0.000
0.000
JupiterEukelade4.017,154,569
30,025,609
17,224,480
30,095,520
0.000027
0.000015
0.000027
0.000015
0.1024703,834.971
6,712.343
3,850.600
6,727.972
0.000
0.000
0.000
0.000
JupiterHegemone3.016,024,489
31,735,689
16,094,400
31,805,600
0.000021
0.000011
0.000021
0.000011
0.1024704,776.450
9,459.517
4,797.288
9,480.356
0.000
0.000
0.000
0.000
JupiterAoede4.013,550,729
34,269,449
13,620,640
34,339,360
0.000034
0.000013
0.000034
0.000013
0.1024703,029.319
7,661.070
3,044.948
7,676.699
0.000
0.000
0.000
0.000
JupiterKallichore2.017,623,529
30,316,649
17,693,440
30,386,560
0.000013
0.000008
0.000013
0.000008
0.1024707,879.618
13,554.812
7,910.876
13,586.070
0.000
0.000
0.000
0.000
JupiterCyllene2.016,512,439
32,047,739
16,582,350
32,117,650
0.000014
0.000007
0.000014
0.000007
0.1024707,382.841
14,328.796
7,414.099
14,360.053
0.000
0.000
0.000
0.000
JupiterKore2.016,494,589
32,445,589
16,564,500
32,515,500
0.000014
0.000007
0.000014
0.000007
0.1024707,374.860
14,506.678
7,406.118
14,537.935
0.000
0.000
0.000
0.000
SaturnMimas198.2123,540
131,036
181,772
189,268
0.183843
0.173327
0.124948
0.120000
0.0558660.304
0.322
0.447
0.466
3.291
3.103
2.237
2.148
SaturnEnceladus252.3178,717
180,859
236,949
239,091
0.161772
0.159856
0.122015
0.120922
0.0558660.345
0.349
0.458
0.462
2.896
2.861
2.184
2.164
SaturnTethys536.3236,428
236,428
294,660
294,660
0.259933
0.259933
0.208564
0.208564
0.0558660.215
0.215
0.268
0.268
4.653
4.653
3.733
3.733
SaturnDione562.5318,338
319,998
376,570
378,230
0.202482
0.201431
0.171171
0.170419
0.0558660.276
0.277
0.326
0.328
3.624
3.606
3.064
3.050
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
SaturnRhea764.5468,281
469,335
526,513
527,567
0.187078
0.186658
0.166388
0.166055
0.0558660.299
0.299
0.336
0.336
3.349
3.341
2.978
2.972
SaturnTitan2,575.51,127,921
1,199,275
1,186,153
1,257,507
0.261659
0.246090
0.248813
0.234695
0.0558660.214
0.227
0.225
0.238
4.684
4.405
4.454
4.201
SaturnHyperion133.01,268,537
1,577,199
1,326,769
1,635,431
0.012014
0.009663
0.011487
0.009319
0.0558664.650
5.781
4.863
5.995
0.215
0.173
0.206
0.167
SaturnIapetus734.53,402,283
3,603,853
3,460,515
3,662,085
0.024739
0.023355
0.024322
0.022983
0.0558662.258
2.392
2.297
2.431
0.443
0.418
0.435
0.411
SaturnPhoebe106.610,762,952
15,008,584
10,821,184
15,066,816
0.001135
0.000814
0.001129
0.000811
0.05586649.223
68.641
49.490
68.907
0.020
0.015
0.020
0.015
SaturnJanus90.492,180
94,300
150,412
152,532
0.112379
0.109852
0.068871
0.067914
0.0558660.497
0.509
0.811
0.823
2.012
1.966
1.233
1.216
SaturnEpimetheus58.391,827
94,553
150,059
152,785
0.072753
0.070656
0.044520
0.043726
0.0558660.768
0.791
1.255
1.278
1.302
1.265
0.797
0.783
SaturnHelene16.0318,791
319,545
377,023
377,777
0.005751
0.005738
0.004863
0.004853
0.0558669.714
9.737
11.488
11.511
0.103
0.103
0.087
0.087
SaturnTelesto12.0236,133
236,723
294,365
294,955
0.005823
0.005809
0.004671
0.004662
0.0558669.593
9.617
11.959
11.983
0.104
0.104
0.084
0.083
SaturnCalypso9.5236,133
236,723
294,365
294,955
0.004610
0.004599
0.003698
0.003691
0.05586612.118
12.148
15.106
15.137
0.083
0.082
0.066
0.066
SaturnAtlas15.379,438
79,438
137,670
137,670
0.022071
0.022071
0.012735
0.012735
0.0558662.531
2.531
4.387
4.387
0.395
0.395
0.228
0.228
SaturnPrometheus46.81,312,818
1,318,424
1,371,050
1,376,656
0.004085
0.004068
0.003912
0.003896
0.05586613.676
13.734
14.283
14.341
0.073
0.073
0.070
0.070
SaturnPandora40.682,873
84,063
141,105
142,295
0.056139
0.055344
0.032971
0.032696
0.0558660.995
1.009
1.694
1.709
1.005
0.991
0.590
0.585
SaturnPan12.875,351
75,351
133,583
133,583
0.019466
0.019466
0.010980
0.010980
0.0558662.870
2.870
5.088
5.088
0.348
0.348
0.197
0.197
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
SaturnYmir9.015,263,368
30,700,168
15,321,600
30,758,400
0.000068
0.000034
0.000067
0.000034
0.055866826.810
1,663.015
829.965
1,666.170
0.001
0.001
0.001
0.001
SaturnPaaliaq11.09,608,968
20,674,568
9,667,200
20,732,800
0.000131
0.000061
0.000130
0.000061
0.055866425.875
916.309
428.456
918.889
0.002
0.001
0.002
0.001
SaturnTarvos7.58,374,388
27,469,148
8,432,620
27,527,380
0.000103
0.000031
0.000102
0.000031
0.055866544.365
1,785.591
548.150
1,789.376
0.002
0.001
0.002
0.001
SaturnIjiraq6.07,547,848
14,575,688
7,606,080
14,633,920
0.000091
0.000047
0.000090
0.000047
0.055866613.296
1,184.338
618.027
1,189.070
0.002
0.001
0.002
0.001
SaturnSuttungr3.517,183,328
21,620,208
17,241,560
21,678,440
0.000023
0.000019
0.000023
0.000019
0.0558662,393.521
3,011.548
2,401.632
3,019.660
0.000
0.000
0.000
0.000
SaturnKiviuq8.07,341,028
14,762,508
7,399,260
14,820,740
0.000125
0.000062
0.000124
0.000062
0.055866447.368
899.639
450.917
903.187
0.002
0.001
0.002
0.001
SaturnMundilfari3.514,706,868
22,556,668
14,765,100
22,614,900
0.000027
0.000018
0.000027
0.000018
0.0558662,048.567
3,141.991
2,056.678
3,150.102
0.000
0.000
0.000
0.000
SaturnAlbiorix16.08,533,348
23,710,188
8,591,580
23,768,420
0.000215
0.000077
0.000213
0.000077
0.055866260.014
722.459
261.789
724.233
0.004
0.001
0.004
0.001
SaturnSkathi4.011,285,968
19,677,568
11,344,200
19,735,800
0.000041
0.000023
0.000040
0.000023
0.0558661,375.551
2,398.333
1,382.649
2,405.430
0.001
0.000
0.001
0.000
SaturnSiarnaq20.012,300,418
22,643,118
12,358,650
22,701,350
0.000186
0.000101
0.000185
0.000101
0.055866299.839
551.956
301.258
553.375
0.003
0.002
0.003
0.002
SaturnThrymr3.510,790,868
30,032,668
10,849,100
30,090,900
0.000037
0.000013
0.000037
0.000013
0.0558661,503.095
4,183.347
1,511.206
4,191.458
0.001
0.000
0.001
0.000
SaturnNarvi3.510,758,458
27,145,078
10,816,690
27,203,310
0.000037
0.000015
0.000037
0.000015
0.0558661,498.580
3,781.125
1,506.691
3,789.236
0.001
0.000
0.001
0.000
SaturnMethone1.6135,768
135,768
194,000
194,000
0.001350
0.001350
0.000945
0.000945
0.05586641.369
41.369
59.113
59.113
0.024
0.024
0.017
0.017
SaturnPallene2.0152,768
152,768
211,000
211,000
0.001500
0.001500
0.001086
0.001086
0.05586637.239
37.239
51.434
51.434
0.027
0.027
0.019
0.019
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
SaturnPolydeuces1.3319,168
319,168
377,400
377,400
0.000449
0.000449
0.000380
0.000380
0.055866124.482
124.482
147.194
147.194
0.008
0.008
0.007
0.007
SaturnDaphnis3.078,268
78,268
136,500
136,500
0.004392
0.004392
0.002518
0.002518
0.05586612.719
12.719
22.182
22.182
0.079
0.079
0.045
0.045
SaturnAegir3.015,455,288
25,908,248
15,513,520
25,966,480
0.000022
0.000013
0.000022
0.000013
0.0558662,511.619
4,210.317
2,521.083
4,219.780
0.000
0.000
0.000
0.000
SaturnBebhionn3.09,032,488
25,091,048
9,090,720
25,149,280
0.000038
0.000014
0.000038
0.000014
0.0558661,467.858
4,077.515
1,477.322
4,086.978
0.001
0.000
0.001
0.000
SaturnBergelmir3.016,535,488
22,028,048
16,593,720
22,086,280
0.000021
0.000016
0.000021
0.000016
0.0558662,687.161
3,579.750
2,696.625
3,589.214
0.000
0.000
0.000
0.000
SaturnBestla3.59,584,038
30,559,498
9,642,270
30,617,730
0.000042
0.000013
0.000042
0.000013
0.0558661,334.991
4,256.731
1,343.103
4,264.842
0.001
0.000
0.001
0.000
SaturnFarbauti2.516,131,428
24,532,108
16,189,660
24,590,340
0.000018
0.000012
0.000018
0.000012
0.0558663,145.798
4,784.019
3,157.154
4,795.374
0.000
0.000
0.000
0.000
SaturnFenrir2.019,338,568
25,444,968
19,396,800
25,503,200
0.000012
0.000009
0.000012
0.000009
0.0558664,714.030
6,202.545
4,728.224
6,216.740
0.000
0.000
0.000
0.000
SaturnFornjot3.019,879,108
30,224,428
19,937,340
30,282,660
0.000017
0.000011
0.000017
0.000011
0.0558663,230.529
4,911.734
3,239.992
4,921.197
0.000
0.000
0.000
0.000
SaturnHati3.012,413,848
27,189,688
12,472,080
27,247,920
0.000028
0.000013
0.000028
0.000013
0.0558662,017.359
4,418.562
2,026.822
4,428.025
0.000
0.000
0.000
0.000
SaturnHyrrokkin4.012,241,248
24,522,288
12,299,480
24,580,520
0.000037
0.000019
0.000037
0.000019
0.0558661,491.982
2,988.815
1,499.080
2,995.912
0.001
0.000
0.001
0.000
SaturnKari3.511,488,408
32,635,128
11,546,640
32,693,360
0.000035
0.000012
0.000035
0.000012
0.0558661,600.257
4,545.852
1,608.369
4,553.963
0.001
0.000
0.001
0.000
SaturnLoge3.018,697,678
27,325,858
18,755,910
27,384,090
0.000018
0.000013
0.000018
0.000013
0.0558663,038.536
4,440.691
3,047.999
4,450.154
0.000
0.000
0.000
0.000
SaturnSkoll3.09,412,888
25,810,648
9,471,120
25,868,880
0.000037
0.000013
0.000036
0.000013
0.0558661,529.677
4,194.456
1,539.140
4,203.919
0.001
0.000
0.001
0.000
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
SaturnSurtur3.012,409,558
32,893,978
12,467,790
32,952,210
0.000028
0.000010
0.000028
0.000010
0.0558662,016.662
5,345.559
2,026.125
5,355.022
0.000
0.000
0.000
0.000
SaturnAnthe1.0139,270
139,666
197,502
197,898
0.000823
0.000820
0.000580
0.000579
0.05586667.898
68.091
96.288
96.480
0.015
0.015
0.010
0.010
SaturnJarnsaxa3.014,688,808
22,814,728
14,747,040
22,872,960
0.000023
0.000015
0.000023
0.000015
0.0558662,387.060
3,707.593
2,396.523
3,717.056
0.000
0.000
0.000
0.000
SaturnGreip3.012,215,308
24,088,228
12,273,540
24,146,460
0.000028
0.000014
0.000028
0.000014
0.0558661,985.094
3,914.548
1,994.558
3,924.011
0.001
0.000
0.001
0.000
SaturnTarqeq3.515,070,168
20,833,368
15,128,400
20,891,600
0.000027
0.000019
0.000027
0.000019
0.0558662,099.172
2,901.947
2,107.283
2,910.058
0.000
0.000
0.000
0.000
SaturnAegaeon0.3109,235
109,302
167,467
167,534
0.000262
0.000262
0.000171
0.000171
0.055866213.019
213.149
326.577
326.708
0.005
0.005
0.003
0.003
SaturnErriapus4.09,062,608
25,500,928
9,120,840
25,559,160
0.000051
0.000018
0.000050
0.000018
0.0558661,104.565
3,108.093
1,111.662
3,115.190
0.001
0.000
0.001
0.000
UranusAriel578.7174,298
174,778
199,660
200,140
0.380462
0.379418
0.332134
0.331338
0.0277770.073
0.073
0.084
0.084
13.697
13.659
11.957
11.928
UranusUmbriel584.7239,601
241,675
264,963
267,037
0.279638
0.277238
0.252872
0.250907
0.0277770.099
0.100
0.110
0.111
10.067
9.981
9.103
9.033
UranusTitania788.9410,458
411,418
435,820
436,780
0.220245
0.219731
0.207428
0.206972
0.0277770.126
0.126
0.134
0.134
7.929
7.910
7.467
7.451
UranusOberon761.4557,321
558,955
582,683
584,317
0.156552
0.156095
0.149738
0.149320
0.0277770.177
0.178
0.186
0.186
5.636
5.619
5.391
5.376
UranusMiranda235.8104,369
104,707
129,731
130,069
0.258895
0.258060
0.208282
0.207741
0.0277770.107
0.108
0.133
0.134
9.320
9.290
7.498
7.479
UranusCordelia20.124,423
24,453
49,785
49,815
0.094308
0.094193
0.046265
0.046237
0.0277770.295
0.295
0.600
0.601
3.395
3.391
1.666
1.665
UranusOphelia21.427,905
28,971
53,267
54,333
0.087878
0.084646
0.046037
0.045134
0.0277770.316
0.328
0.603
0.615
3.164
3.047
1.657
1.625
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
UranusBianca25.733,785
33,891
59,147
59,253
0.087170
0.086896
0.049791
0.049702
0.0277770.319
0.320
0.558
0.559
3.138
3.128
1.793
1.789
UranusCressida39.836,413
36,463
61,775
61,825
0.125249
0.125080
0.073828
0.073769
0.0277770.222
0.222
0.376
0.377
4.509
4.503
2.658
2.656
UranusDesdemona32.037,332
37,344
62,694
62,706
0.098226
0.098193
0.058490
0.058478
0.0277770.283
0.283
0.475
0.475
3.536
3.535
2.106
2.105
UranusJuliet46.838,993
39,083
64,355
64,445
0.137535
0.137217
0.083333
0.083216
0.0277770.202
0.202
0.333
0.334
4.951
4.940
3.000
2.996
UranusPortia67.640,731
40,745
66,093
66,107
0.190182
0.190120
0.117204
0.117180
0.0277770.146
0.146
0.237
0.237
6.847
6.844
4.219
4.219
UranusRosalind36.044,531
44,545
69,893
69,907
0.092639
0.092610
0.059023
0.059011
0.0277770.300
0.300
0.471
0.471
3.335
3.334
2.125
2.124
UranusBelinda40.349,930
49,946
75,292
75,308
0.092489
0.092462
0.061335
0.061322
0.0277770.300
0.300
0.453
0.453
3.330
3.329
2.208
2.208
UranusPuck81.060,629
60,647
85,991
86,009
0.153093
0.153049
0.107940
0.107918
0.0277770.181
0.181
0.257
0.257
5.511
5.510
3.886
3.885
UranusCaliban49.05,895,463
8,516,013
5,920,825
8,541,375
0.000952
0.000659
0.000948
0.000657
0.02777729.165
42.129
29.290
42.254
0.034
0.024
0.034
0.024
UranusSycorax75.05,797,609
18,510,467
5,822,971
18,535,829
0.001482
0.000464
0.001476
0.000464
0.02777718.738
59.827
18.820
59.909
0.053
0.017
0.053
0.017
UranusProspero25.05,222,075
27,239,201
5,247,437
27,264,563
0.000549
0.000105
0.000546
0.000105
0.02777750.634
264.116
50.880
264.362
0.020
0.004
0.020
0.004
UranusSetebos24.07,102,084
27,683,192
7,127,446
27,708,554
0.000387
0.000099
0.000386
0.000099
0.02777771.732
279.605
71.988
279.861
0.014
0.004
0.014
0.004
UranusStephano10.06,179,339
9,777,937
6,204,701
9,803,299
0.000185
0.000117
0.000185
0.000117
0.027777149.790
237.021
150.405
237.636
0.007
0.004
0.007
0.004
UranusCupid9.074,364,638
74,364,638
74,390,000
74,390,000
0.000014
0.000014
0.000014
0.000014
0.0277772,002.922
2,002.922
2,003.605
2,003.605
0.000
0.000
0.000
0.000
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun) Ratio Sun/moon Ratio moon/Sun
UranusPerdita13.076,394,638
76,394,638
76,420,000
76,420,000
0.000019
0.000019
0.000019
0.000019
0.0277771,424.491
1,424.491
1,424.964
1,424.964
0.001
0.001
0.001
0.001
UranusMab12.097,714,638
97,714,638
97,740,000
97,740,000
0.000014
0.000014
0.000014
0.000014
0.0277771,973.870
1,973.870
1,974.382
1,974.382
0.001
0.001
0.001
0.001
UranusFrancisco11.03,684,496
4,816,780
3,709,858
4,842,142
0.000342
0.000262
0.000340
0.000260
0.02777781.194
106.146
81.753
106.705
0.012
0.009
0.012
0.009
UranusTrinculo9.06,612,860
10,344,416
6,638,222
10,369,778
0.000156
0.000100
0.000155
0.000099
0.027777178.109
278.614
178.793
279.297
0.006
0.004
0.006
0.004
UranusMargaret10.04,605,204
24,034,072
4,630,566
24,059,434
0.000249
0.000048
0.000247
0.000048
0.027777111.632
582.596
112.247
583.211
0.009
0.002
0.009
0.002
UranusFerdinand10.012,529,869
29,221,407
12,555,231
29,246,769
0.000091
0.000039
0.000091
0.000039
0.027777303.729
708.339
304.344
708.954
0.003
0.001
0.003
0.001
NeptuneTriton1,353.4330,132
330,144
354,754
354,766
0.469773
0.469757
0.437169
0.437155
0.0177280.038
0.038
0.041
0.041
26.499
26.499
24.660
24.659
NeptuneNereid170.01,347,112
9,630,444
1,371,734
9,655,066
0.014461
0.002023
0.014201
0.002018
0.0177281.226
8.764
1.248
8.786
0.816
0.114
0.801
0.114
NeptuneNaiad33.023,591
23,619
48,213
48,241
0.160298
0.160102
0.078434
0.078387
0.0177280.111
0.111
0.226
0.226
9.042
9.031
4.424
4.422
NeptuneThalassa41.025,443
25,463
50,065
50,085
0.184658
0.184513
0.093843
0.093806
0.0177280.096
0.096
0.189
0.189
10.416
10.408
5.294
5.291
NeptuneDespina75.027,899
27,909
52,521
52,531
0.308055
0.307939
0.163637
0.163605
0.0177280.058
0.058
0.108
0.108
17.377
17.371
9.231
9.229
NeptuneProteus210.092,978
93,072
117,600
117,694
0.258816
0.258554
0.204628
0.204464
0.0177280.068
0.069
0.087
0.087
14.600
14.585
11.543
11.534
NeptuneGalatea92.061,922,183
61,934,573
61,946,805
61,959,195
0.000170
0.000170
0.000170
0.000170
0.017728104.126
104.146
104.167
104.188
0.010
0.010
0.010
0.010
NeptuneLarisssa100.073,420,411
73,626,345
73,445,033
73,650,967
0.000156
0.000156
0.000156
0.000156
0.017728113.584
113.902
113.622
113.940
0.009
0.009
0.009
0.009

^^^ Jump to top of table

Summary data

Found Earth-like eclipse conditions for: Earth/Moon, Saturn/Epimetheus, Saturn/Pandora
Moons investigated: 141
Maximum Solar/Moon ratio: 27,558.7
Minimum Solar/Moon ratio: 0.037737
Total eclipses: 32 - where the Sun is completely covered at both apoapsis and periapsis.
Annular eclipses: 107 - where Sun is visible around occulting moon at both apoapsis and periapsis.
Extreme totals (moon over 2x size of Sun): 30
Extreme annulars (Sun over 2x size of moon): 105
Number of very interesting eclipses, where moon appears less than twice the size of the Sun allowing a view of the corona, is 5 with 3 making a near perfect fit (one to one) - annular at apoapsis, total at periapsis.
Of the moons in the solar system, 22.7% were total only, 75.9% were annular only and 3.5% are ideal.

Click here for the related Study - Do other planets see solar eclipses?



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