www.eclipse-chasers.com
Eclipses in the Solar System
Author: Bill Kramer
Last update: April 24 2018

Planets in Study Distance to Sun (KM)
Angular Size of Sun (Degrees)
Planet name Radius (KM) Moons Perihelion Average Aphelion
Earth63711147,100,000
0.54195
149,600,000
0.53289
152,100,000
0.52413
Mars33902206,600,000
0.38587
227,900,000
0.34981
249,200,000
0.31991
Jupiter6991150740,500,000
0.10766
778,600,000
0.10239
816,600,000
0.09763
Saturn58232531,352,600,000
0.05894
1,433,500,000
0.05561
1,514,500,000
0.05264
Uranus25362272,741,300,000
0.02908
2,872,500,000
0.02775
3,003,600,000
0.02654
Neptune2462284,444,500,000
0.01794
4,495,100,000
0.01774
4,545,700,000
0.01754

= = = > Jump to summary

Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
EarthMoon1,737.1356,924
405,503
2,007.7
1,767.2
1,886.9
1,951.0
0.940
1.104
MarsPhobos11.15,846
9,520
783.2
481.0
1,151.7
1,389.1
1.470
2.888
MarsDeimos6.220,057
23,471
127.5
109.0
1,151.7
1,389.1
9.031
12.747
JupiterIo1,818.1350,202
423,487
2,141.7
1,771.0
351.5
387.6
0.164
0.219
JupiterEuropa1,560.7595,149
677,140
1,081.8
950.8
351.5
387.6
0.325
0.408
JupiterGanymede2,634.1999,419
1,071,470
1,087.3
1,014.2
351.5
387.6
0.323
0.382
JupiterCallisto2,408.41,799,610
1,895,879
552.1
524.1
351.5
387.6
0.637
0.740
JupiterAmalthea83.5110,945
181,944
310.3
189.2
351.5
387.6
1.133
2.048
JupiterHimalia67.09,533,569
13,316,520
2.9
2.1
351.5
387.6
121.225
186.729
JupiterElara43.09,122,509
14,287,580
1.9
1.2
351.5
387.6
180.742
312.167
JupiterPasiphae30.013,889,509
33,280,580
0.9
0.4
351.5
387.6
394.437
1,042.237
JupiterSinope19.017,885,089
29,925,000
0.4
0.3
351.5
387.6
801.955
1,479.713
JupiterLysithea18.010,337,449
13,032,640
0.7
0.6
351.5
387.6
489.275
680.231
JupiterCarme23.017,409,889
29,320,200
0.5
0.3
351.5
387.6
644.883
1,197.667
JupiterAnanke14.016,017,769
26,472,320
0.4
0.2
351.5
387.6
974.735
1,776.482
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
JupiterLeda10.09,268,209
13,001,880
0.4
0.3
351.5
387.6
789.602
1,221.527
JupiterTheba49.3147,995
225,894
137.4
90.0
351.5
387.6
2.557
4.305
JupiterAdrastea8.258,896
129,194
57.4
26.2
351.5
387.6
6.119
14.802
JupiterMetis21.558,063
128,026
152.8
69.3
351.5
387.6
2.301
5.594
JupiterCallirrhoe4.317,209,789
30,920,300
0.1
0.1
351.5
387.6
3,409.727
6,755.726
JupiterThemisto4.05,620,395
9,323,694
0.3
0.2
351.5
387.6
1,197.070
2,189.903
JupiterMegaclite2.713,716,079
33,834,010
0.1
0.0
351.5
387.6
4,327.915
11,772.983
JupiterTaygete2.517,426,729
29,223,360
0.1
0.0
351.5
387.6
5,938.659
10,982.139
JupiterChaldene1.917,593,249
28,696,840
0.0
0.0
351.5
387.6
7,888.691
14,189.833
JupiterHarpalyke2.216,248,119
25,901,970
0.1
0.0
351.5
387.6
6,292.061
11,061.319
JupiterKalyke2.617,780,149
29,309,940
0.1
0.0
351.5
387.6
5,826.055
10,591.035
JupiterIocaste2.616,563,229
25,906,860
0.1
0.0
351.5
387.6
5,427.304
9,361.345
JupiterErinome1.616,924,489
29,565,600
0.0
0.0
351.5
387.6
9,011.729
17,360.552
JupiterIsonoe1.917,089,669
29,280,420
0.0
0.0
351.5
387.6
7,662.890
14,478.398
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
JupiterPraxidike3.416,427,089
25,803,000
0.1
0.1
351.5
387.6
4,116.179
7,129.976
JupiterAutonoe2.015,274,729
30,735,360
0.1
0.0
351.5
387.6
6,506.629
14,437.936
JupiterThyone2.016,074,829
25,735,260
0.1
0.0
351.5
387.6
6,847.450
12,089.139
JupiterHermippe2.016,622,789
25,567,300
0.0
0.0
351.5
387.6
7,080.867
12,010.240
JupiterCarpo3.09,614,389
24,295,700
0.1
0.1
351.5
387.6
2,730.316
7,608.604
JupiterEuporie1.016,295,249
22,414,840
0.0
0.0
351.5
387.6
13,882.687
21,058.744
JupiterOrthosie1.014,827,769
26,542,320
0.0
0.0
351.5
387.6
12,632.472
24,936.511
JupiterEuanthe1.515,904,489
25,625,600
0.0
0.0
351.5
387.6
9,033.187
16,050.169
JupiterMneme2.016,217,199
25,852,890
0.1
0.0
351.5
387.6
6,908.096
12,144.396
JupiterThelxinoe2.016,413,729
25,836,360
0.1
0.0
351.5
387.6
6,991.813
12,136.631
JupiterHelike4.017,873,529
24,576,560
0.1
0.1
351.5
387.6
3,806.824
5,772.420
JupiterHerse2.018,407,689
27,716,400
0.0
0.0
351.5
387.6
7,841.187
13,019.780
JupiterEurydome1.516,487,969
29,182,120
0.0
0.0
351.5
387.6
9,364.583
18,277.736
JupiterArche1.516,921,219
28,868,870
0.0
0.0
351.5
387.6
9,610.653
18,081.537
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
JupiterPasithee1.016,377,289
29,752,800
0.0
0.0
351.5
387.6
13,952.580
27,952.757
JupiterKale1.017,112,889
29,257,200
0.0
0.0
351.5
387.6
14,579.273
27,487.141
JupiterAitne1.517,027,369
29,362,720
0.0
0.0
351.5
387.6
9,670.943
18,390.851
JupiterSponde1.016,091,209
30,818,880
0.0
0.0
351.5
387.6
13,708.855
28,954.340
JupiterEukelade4.017,154,569
30,095,520
0.1
0.1
351.5
387.6
3,653.695
7,068.686
JupiterHegemone3.016,024,489
31,805,600
0.1
0.0
351.5
387.6
4,550.671
9,960.454
JupiterAoede4.013,550,729
34,339,360
0.1
0.0
351.5
387.6
2,886.125
8,065.458
JupiterKallichore2.017,623,529
30,386,560
0.0
0.0
351.5
387.6
7,507.155
14,274.087
JupiterCyllene2.016,512,439
32,117,650
0.0
0.0
351.5
387.6
7,033.861
15,087.267
JupiterKore2.016,494,589
32,515,500
0.1
0.0
351.5
387.6
7,026.257
15,274.157
SaturnMimas198.2123,540
189,268
661.8
432.0
189.5
212.2
0.286
0.491
SaturnEnceladus252.3178,717
239,091
582.4
435.3
189.5
212.2
0.325
0.487
SaturnTethys536.3236,428
294,660
935.8
750.8
189.5
212.2
0.203
0.283
SaturnDione562.5318,338
378,230
728.9
613.5
189.5
212.2
0.260
0.346
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
SaturnRhea764.5468,281
527,567
673.5
597.8
189.5
212.2
0.281
0.355
SaturnTitan2,575.51,127,921
1,257,507
942.0
844.9
189.5
212.2
0.201
0.251
SaturnHyperion133.01,268,537
1,635,431
43.3
33.5
189.5
212.2
4.381
6.325
SaturnIapetus734.53,402,283
3,662,085
89.1
82.7
189.5
212.2
2.128
2.564
SaturnPhoebe106.610,762,952
15,066,816
4.1
2.9
189.5
212.2
46.380
72.697
SaturnJanus90.492,180
152,532
404.6
244.5
189.5
212.2
0.468
0.868
SaturnEpimetheus58.391,827
152,785
261.9
157.4
189.5
212.2
0.724
1.348
SaturnHelene16.0318,791
377,777
20.7
17.5
189.5
212.2
9.152
12.144
SaturnTelesto12.0236,133
294,955
21.0
16.8
189.5
212.2
9.039
12.642
SaturnCalypso9.5236,133
294,955
16.6
13.3
189.5
212.2
11.418
15.969
SaturnAtlas15.379,438
137,670
79.5
45.8
189.5
212.2
2.385
4.628
SaturnPrometheus46.81,312,818
1,376,656
14.7
14.0
189.5
212.2
12.886
15.130
SaturnPandora40.682,873
142,295
202.1
117.7
189.5
212.2
0.938
1.803
SaturnPan12.875,351
133,583
70.1
39.5
189.5
212.2
2.704
5.368
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
SaturnYmir9.015,263,368
30,758,400
0.2
0.1
189.5
212.2
779.041
1,757.818
SaturnPaaliaq11.09,608,968
20,732,800
0.5
0.2
189.5
212.2
401.270
969.433
SaturnTarvos7.58,374,388
27,527,380
0.4
0.1
189.5
212.2
512.914
1,887.801
SaturnIjiraq6.07,547,848
14,633,920
0.3
0.2
189.5
212.2
577.863
1,254.475
SaturnSuttungr3.517,183,328
21,678,440
0.1
0.1
189.5
212.2
2,255.236
3,185.756
SaturnKiviuq8.07,341,028
14,820,740
0.4
0.2
189.5
212.2
421.521
952.867
SaturnMundilfari3.514,706,868
22,614,900
0.1
0.1
189.5
212.2
1,930.211
3,323.374
SaturnAlbiorix16.08,533,348
23,768,420
0.8
0.3
189.5
212.2
244.992
764.070
SaturnSkathi4.011,285,968
19,735,800
0.1
0.1
189.5
212.2
1,296.079
2,537.741
SaturnSiarnaq20.012,300,418
22,701,350
0.7
0.4
189.5
212.2
282.516
583.814
SaturnThrymr3.510,790,868
30,090,900
0.1
0.0
189.5
212.2
1,416.254
4,422.010
SaturnNarvi3.510,758,458
27,203,310
0.1
0.1
189.5
212.2
1,412.000
3,997.664
SaturnMethone1.6135,768
194,000
4.9
3.4
189.5
212.2
38.979
62.364
SaturnPallene2.0152,768
211,000
5.4
3.9
189.5
212.2
35.088
54.263
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
SaturnPolydeuces1.3319,168
377,400
1.6
1.4
189.5
212.2
117.290
155.290
SaturnDaphnis3.078,268
136,500
15.8
9.1
189.5
212.2
11.984
23.403
SaturnAegir3.015,455,288
25,966,480
0.1
0.0
189.5
212.2
2,366.511
4,451.890
SaturnBebhionn3.09,032,488
25,149,280
0.1
0.0
189.5
212.2
1,383.053
4,311.783
SaturnBergelmir3.016,535,488
22,086,280
0.1
0.1
189.5
212.2
2,531.911
3,786.639
SaturnBestla3.59,584,038
30,617,730
0.2
0.0
189.5
212.2
1,257.863
4,499.430
SaturnFarbauti2.516,131,428
24,590,340
0.1
0.0
189.5
212.2
2,964.050
5,059.145
SaturnFenrir2.019,338,568
25,503,200
0.0
0.0
189.5
212.2
4,441.677
6,558.692
SaturnFornjot3.019,879,108
30,282,660
0.1
0.0
189.5
212.2
3,043.886
5,191.888
SaturnHati3.012,413,848
27,247,920
0.1
0.0
189.5
212.2
1,900.806
4,671.590
SaturnHyrrokkin4.012,241,248
24,580,520
0.1
0.1
189.5
212.2
1,405.783
3,160.703
SaturnKari3.511,488,408
32,693,360
0.1
0.0
189.5
212.2
1,507.803
4,804.455
SaturnLoge3.018,697,678
27,384,090
0.1
0.0
189.5
212.2
2,862.985
4,694.936
SaturnSkoll3.09,412,888
25,868,880
0.1
0.0
189.5
212.2
1,441.300
4,435.157
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
SaturnSurtur3.012,409,558
32,952,210
0.1
0.0
189.5
212.2
1,900.149
5,649.576
SaturnAnthe1.0139,270
197,898
3.0
2.1
189.5
212.2
63.975
101.787
SaturnJarnsaxa3.014,688,808
22,872,960
0.1
0.1
189.5
212.2
2,249.148
3,921.513
SaturnGreip3.012,215,308
24,146,460
0.1
0.1
189.5
212.2
1,870.406
4,139.852
SaturnTarqeq3.515,070,168
20,891,600
0.1
0.1
189.5
212.2
1,977.893
3,070.126
SaturnAegaeon0.3109,235
167,534
0.9
0.6
189.5
212.2
200.712
344.679
SaturnErriapus4.09,062,608
25,559,160
0.2
0.1
189.5
212.2
1,040.749
3,286.542
UranusAriel578.7174,298
200,140
1,369.7
1,192.8
95.6
104.7
0.070
0.088
UranusUmbriel584.7239,601
267,037
1,006.7
903.3
95.6
104.7
0.095
0.116
UranusTitania788.9410,458
436,780
792.9
745.1
95.6
104.7
0.121
0.141
UranusOberon761.4557,321
584,317
563.6
537.6
95.6
104.7
0.170
0.195
UranusMiranda235.8104,369
130,069
932.0
747.9
95.6
104.7
0.103
0.140
UranusCordelia20.124,423
49,815
339.5
166.5
95.6
104.7
0.281
0.629
UranusOphelia21.427,905
54,333
316.4
162.5
95.6
104.7
0.302
0.644
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
UranusBianca25.733,785
59,253
313.8
178.9
95.6
104.7
0.304
0.585
UranusCressida39.836,413
61,825
450.9
265.6
95.6
104.7
0.212
0.394
UranusDesdemona32.037,332
62,706
353.6
210.5
95.6
104.7
0.270
0.497
UranusJuliet46.838,993
64,445
495.1
299.6
95.6
104.7
0.193
0.349
UranusPortia67.640,731
66,107
684.7
421.8
95.6
104.7
0.140
0.248
UranusRosalind36.044,531
69,907
333.5
212.4
95.6
104.7
0.287
0.493
UranusBelinda40.349,930
75,308
333.0
220.8
95.6
104.7
0.287
0.474
UranusPuck81.060,629
86,009
551.1
388.5
95.6
104.7
0.173
0.269
UranusCaliban49.05,895,463
8,541,375
3.4
2.4
95.6
104.7
27.868
44.238
UranusSycorax75.05,797,609
18,535,829
5.3
1.7
95.6
104.7
17.905
62.721
UranusProspero25.05,222,075
27,264,563
2.0
0.4
95.6
104.7
48.382
276.773
UranusSetebos24.07,102,084
27,708,554
1.4
0.4
95.6
104.7
68.542
293.000
UranusStephano10.06,179,339
9,803,299
0.7
0.4
95.6
104.7
143.127
248.793
UranusCupid9.074,364,638
74,390,000
0.0
0.0
95.6
104.7
1,913.832
2,097.671
Planet Moon Size (radius KM) Distance (KM)
Periapsis/Apoapsis
Angular Size (moon)
Periapsis/Apoapsis
Angular Size (Sun)
Aphelion/Perihelion
Ratio Sun/moon
UranusPerdita13.076,394,638
76,420,000
0.1
0.1
95.6
104.7
1,361.129
1,491.864
UranusMab12.097,714,638
97,740,000
0.1
0.1
95.6
104.7
1,886.072
2,067.076
UranusFrancisco11.03,684,496
4,842,142
1.2
0.9
95.6
104.7
77.583
111.715
UranusTrinculo9.06,612,860
10,369,778
0.6
0.4
95.6
104.7
170.187
292.410
UranusMargaret10.04,605,204
24,059,434
0.9
0.2
95.6
104.7
106.667
610.592
UranusFerdinand10.012,529,869
29,246,769
0.3
0.1
95.6
104.7
290.219
742.238
NeptuneTriton1,353.4330,132
354,766
1,691.2
1,573.8
63.1
64.6
0.037
0.041
NeptuneNereid170.01,347,112
9,655,066
52.1
7.3
63.1
64.6
1.213
8.890
NeptuneNaiad33.023,591
48,241
577.1
282.2
63.1
64.6
0.109
0.229
NeptuneThalassa41.025,443
50,085
664.8
337.7
63.1
64.6
0.095
0.191
NeptuneDespina75.027,899
52,531
1,109.0
589.0
63.1
64.6
0.057
0.110
NeptuneProteus210.092,978
117,694
931.7
736.1
63.1
64.6
0.068
0.088
NeptuneGalatea92.061,922,183
61,959,195
0.6
0.6
63.1
64.6
103.010
105.419
NeptuneLarisssa100.073,420,411
73,650,967
0.6
0.6
63.1
64.6
112.367
115.286

^^^ 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: 28,954.3
Minimum Solar/Moon ratio: 0.037332
Total eclipses: 31 - 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): 104
Number of very interesting eclipses, where moon appears less than twice the size of the Sun allowing a view of the corona, is 8 with 3 making a near perfect fit (one to one) - annular at apoapsis, total at periapsis.
Of the moons in the solar system, 22.0% were total only, 75.9% were annular only and 5.7% are ideal.

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


Comparing the angular sizes

Using data from the NASA Planetary Fact Sheets about the moons, the 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.

The program searched 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, both total and annular eclipse are possible and this is considered to be the most Earth-like.


Columns in table

Planet is the name of the planet.
Moon is the name of the moon in orbit about the planet.
Size (radius KM) is the size of the moon's radius in kilometers.
Distance (KM) Periapsis/Apoapsis is the distance, in kilometers, from the surface (or cloud tops) of the planet to the moon. There are two values. The top value is the distance from the surface of the planet facing towards the Sun when the moon is closest or at periapsis. The second value is the distance from the surface of the planet at the pole to the moon when the moon is farthest or apoapsis.
Angular Size (moon) is the apparent size in seconds of arc. There are two values. The top is when the moon is closest or periapsis. The bottom value is when the moon is furthest or apoapsis.
Angular Size (Sun) Aphelion/Perihelion is the apparent size of the Sun as seen from the planet measured in seconds of arc. The top value is when the Sun is furthest or aphelion. The bottom value is when the Sun is furthest or perihelion.
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 (biggest) to the surface of the planet and Sun furthest away (smallest). The bottom value is the ratio when the moon is smaller (furthest) and the Sun largest (closest).


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