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Timeline of natural satellites in the Solar system by decade of discovery
For comparison, discovery dates of Uranus, Neptune and Pluto are also included, as well as the first six asteroids. After the first six, new asteroids were discovered every year; however, the first four at least were for several decades considered full-fledged planets.
Historically the naming of natural satellites did not always match the times of their discovery. See Naming of natural satellites.
The tables are sorted by publication/announcement date. When two dates are given, the first is publication, the second is the discovery observation's date.
Prehistoric
| Date | Name | Designation | Number Designation | References | | October 24, 1851 | Ariel | Uranus I | Lassell [8] (http://adsabs.harvard.edu//full/seri/AJ.../0002//0000070.000.html) | | October 24, 1851 | Umbriel | Uranus II | Lassell [9] (http://adsabs.harvard.edu//full/seri/AJ.../0002//0000070.000.html) |
| Date | Name | Designation | Number Designation | References | | August 12, 1877 | Deimos | Mars II | Hall [10] (http://adsabs.harvard.edu//full/seri/Obs../0001//0000181.000.html) [11] (http://adsabs.harvard.edu//full/seri/AN.../0091//0000013.000.html) [12] (http://adsabs.harvard.edu//full/seri/MNRAS/0038//0000205.000.html) | | August 18, 1877 | Phobos | Mars I | Hall [13] (http://adsabs.harvard.edu//full/seri/Obs../0001//0000181.000.html) [14] (http://adsabs.harvard.edu//full/seri/AN.../0091//0000014.000.html) [15] (http://adsabs.harvard.edu//full/seri/MNRAS/0038//0000205.000.html) |
| Date | Name | Designation | Number Designation | References | | September 9, 1892 | Amalthea | Jupiter V | Barnard [16] (http://adsabs.harvard.edu//full/seri/AJ.../0012//0000081.000.html) | | August 16, 1898 | Phoebe | Saturn IX | Pickering [17] (http://adsabs.harvard.edu//full/seri/BHarO/0049//0000001.000.html) [18] (http://adsabs.harvard.edu//full/seri/ApJ../0009//0000274.000.html) |
| Date | Name | Designation | Number Designation | References | | December 3, 1904 | Himalia | Jupiter VI | Perrine [19] (http://adsabs.harvard.edu//full/seri/AJ.../0024//0000160.000.html) [20] (http://adsabs.harvard.edu//full/seri/PASP./0017//0000022.000.html) [21] (http://adsabs.harvard.edu//full/seri/BHarO/0173//0000001.000.html) [22] (http://adsabs.harvard.edu//full/seri/AN.../0169//0000027.000.html) | | January 2, 1905 | Elara | Jupiter VII | Perrine [23] (http://adsabs.harvard.edu//full/seri/BHarO/0178//0000001.000.html) [24] (http://adsabs.harvard.edu//full/seri/PASP./0017//0000062.000.html) [25] (http://adsabs.harvard.edu//full/seri/AN.../0169//0000027.000.html) | | April 28, 1905 | "Themis" | "Saturn X" (spurious) | Pickering [26] (http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1905BHarO.189....1P&db_key=AST&high=40daf3f6f920164) [27] (http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1905AnHar..53..173P&db_key=AST&high=40daf3f6f920164) | | January 27, 1908 | Pasiphaë | Jupiter VIII | Melotte [28] (http://adsabs.harvard.edu//full/seri/PASP./0020//0000184.000.html) |
| Date | Name | Designation | Number Designation | References | | July 21, 1914 | Sinope | Jupiter IX | Nicholson [29] (http://adsabs.harvard.edu//full/seri/PASP./0026//0000197.000.html) |
| Date | Name | Designation | Number Designation | References | | February 16, 1948 | Miranda | Uranus V | Kuiper [32] (http://adsabs.harvard.edu//full/seri/PASP./0061//0000129.000.html) | | May 1, 1949 | Nereid | Neptune II | Kuiper [33] (http://adsabs.harvard.edu//full/seri/PASP./0061//0000175.000.html) [34] (http://cfa-www.harvard.edu/iauc/01200/01212.html#Item1) |
| Date | Name | Designation | Number Designation | References | | December 15, 1966 | Janus* | S/1966 S 2 | Saturn X | Dollfus [36] (http://cfa-www.harvard.edu/iauc/01900/01987.html#Item1) [37] (http://cfa-www.harvard.edu/iauc/01900/01995.html#Item1) [38] (http://cfa-www.harvard.edu/iauc/03400/03417.html#Item1) [39] (http://cfa-www.harvard.edu/iauc/03400/03454.html#Item1) [40] (http://cfa-www.harvard.edu/iauc/03400/03456.html#Item3) [41] (http://cfa-www.harvard.edu/iauc/03400/03497.html#Item1)
(Dollfus may have seen either Janus or Epimetheus) | | December 18 1966 | Epimetheus* | Saturn XI | Walker [42] (http://cfa-www.harvard.edu/iauc/01900/01991.html#Item2) |
| Date | Name | Designation | Number Designation | References | | September 20/11, 1974 | Leda | Jupiter XIII | Kowal [43] (http://adsabs.harvard.edu//full/seri/AJ.../0080//0000460.000.html) [44] (http://cfa-www.harvard.edu/iauc/02700/02702.html#Item1) [45] (http://cfa-www.harvard.edu/iauc/02700/02703.html#Item1) [46] (http://cfa-www.harvard.edu/iauc/02700/02711.html#Item1) | | October 3/September 30, 1975 | Themisto* | S/1975 J 1 | Jupiter XVIII | Kowal [47] (http://cfa-www.harvard.edu/iauc/02800/02845.html#Item1) [48] (http://cfa-www.harvard.edu/iauc/02800/02855.html#Item1) [49] (http://cfa-www.harvard.edu/iauc/02800/02899.html#Item2)
(Discovered and then lost) | | April 13, 1978 | Charon | S/1978 P 1 | | Christy [50] (http://cfa-www.harvard.edu/iauc/03200/03241.html#Item1) [51] (http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1978AJ.....83.1005C&db_key=AST&high=40daf3f6f915047) | | November 23/July 8, 1979 | Adrastea | S/1979 J 1 | Jupiter XV | Jewitt, Danielson / Voyager 2 [52] (http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1979Sci...206..951J&db_key=AST&high=40daf3f6f916660) [53] (http://cfa-www.harvard.edu/iauc/03400/03454.html) [54] (http://cfa-www.harvard.edu/iauc/03400/03470.html) [55] (http://cfa-www.harvard.edu/iauc/03500/03507.html) [56] (http://www.solarviews.com/cap/jup/adraste2.htm) [57] (http://ringmaster.arc.nasa.gov/galileo/vgr_data/2063053.html) |
| Date | Name | Designation | Number Designation | References | | January 19, 1980 | Janus* | S/1980 S 1 | Saturn X | [58] (http://cfa-www.harvard.edu/iauc/03400/03454.html#Item1) [59] (http://cfa-www.harvard.edu/iauc/03400/03483.html#Item1) [60] (http://cfa-www.harvard.edu/iauc/03400/03496.html#Item1) [61] (http://cfa-www.harvard.edu/iauc/03400/03497.html#Item1) [62] (http://cfa-www.harvard.edu/iauc/03500/03534.html#Item1)
(Confirmed by Voyager 1) | | January 26, 1980 | Epimetheus* | S/1980 S 3 | Saturn XI | [63] (http://cfa-www.harvard.edu/iauc/03400/03457.html#Item1) [64] (http://cfa-www.harvard.edu/iauc/03400/03483.html#Item1) [65] (http://cfa-www.harvard.edu/iauc/03400/03496.html#Item1) [66] (http://cfa-www.harvard.edu/iauc/03400/03497.html#Item1) [67] (http://cfa-www.harvard.edu/iauc/03500/03534.html#Item1)
(Confirmed by Voyager 1) | | March 1, 1980 | Helene | S/1980 S 6 | Saturn XII | Laques, Lecacheux [68] (http://cfa-www.harvard.edu/iauc/03400/03457.html#Item1) [69] (http://cfa-www.harvard.edu/iauc/03400/03483.html#Item1) [70] (http://cfa-www.harvard.edu/iauc/03400/03496.html#Item1) [71] (http://cfa-www.harvard.edu/iauc/03500/03534.html#Item1) | | March 13, 1980 | Calypso | S/1980 S 25 | Saturn XIV | Pascu, Seidelmann, Baum, Currie [72] (http://cfa-www.harvard.edu/iauc/03400/03496.html#Item1) [73] (http://cfa-www.harvard.edu/iauc/03500/03534.html#Item1) | | April 8, 1980 | Telesto | S/1980 S 13 | Saturn XIII | Smith, Reitsema, Larson, Fountain, Voyager 1 [74] (http://cfa-www.harvard.edu/iauc/03400/03466.html#Item2) [75] (http://cfa-www.harvard.edu/iauc/03500/03534.html#Item1) | | April 28, 1980/March 5, 1979 | Thebe | S/1979 J 2 | Jupiter XIV | Synnott, Voyager 1 [76] (http://cfa-www.harvard.edu/iauc/03400/03470.html#Item1) [77] (http://cfa-www.harvard.edu/iauc/03500/03507.html#Item1) | | August 26, 1980/March 4, 1979 | Metis | S/1979 J 3 | Jupiter XVI | Synnott, Voyager 1 [78] (http://cfa-www.harvard.edu/iauc/03500/03507.html#Item1) | | October, 1980 | Atlas | S/1980 S 28 | Saturn XV | Terrile, Voyager 1 [79] (http://cfa-www.harvard.edu/iauc/03500/03539.html#Item2) | | October, 1980 | Prometheus | S/1980 S 27 | Saturn XVI | Collins, Voyager 1 [80] (http://cfa-www.harvard.edu/iauc/03500/03532.html#Item2) | | October, 1980 | Pandora | S/1980 S 26 | Saturn XVII | Collins, Voyager 1 [81] (http://cfa-www.harvard.edu/iauc/03500/03532.html#Item2) | | December 30, 1985 | Puck | S/1985 U 1 | Uranus XV | Synnott, Voyager 2 [82] (http://cfa-www.harvard.edu/iauc/04100/04159.html#Item1) | | January 3, 1986 | Juliet | S/1986 U 2 | Uranus XI | Synnott, Voyager 2 [83] (http://cfa-www.harvard.edu/iauc/04100/04164.html#Item1) [84] (http://cfa-www.harvard.edu/iauc/04100/04165.html#Item6) | | January 3, 1986 | Portia | S/1986 U 1 | Uranus XII | Synnott, Voyager 2 [85] (http://cfa-www.harvard.edu/iauc/04100/04164.html#Item1) [86] (http://cfa-www.harvard.edu/iauc/04100/04165.html#Item6) | | January 9, 1986 | Cressida | S/1986 U 3 | Uranus IX | Synnott, Voyager 2 [87] (http://cfa-www.harvard.edu/iauc/04100/04164.html#Item1) [88] (http://cfa-www.harvard.edu/iauc/04100/04165.html#Item6) | | January 13, 1986 | Desdemona | S/1986 U 6 | Uranus X | Synnott, Voyager 2 [89] (http://cfa-www.harvard.edu/iauc/04100/04164.html#Item1) [90] (http://cfa-www.harvard.edu/iauc/04100/04165.html#Item6) | | January 13, 1986 | Rosalind | S/1986 U 4 | Uranus XIII | Synnott, Voyager 2 [91] (http://cfa-www.harvard.edu/iauc/04100/04164.html#Item1) [92] (http://cfa-www.harvard.edu/iauc/04100/04165.html#Item6) | | January 13, 1986 | Belinda | S/1986 U 5 | Uranus XIV | Synnott, Voyager 2 [93] (http://cfa-www.harvard.edu/iauc/04100/04164.html#Item1) [94] (http://cfa-www.harvard.edu/iauc/04100/04165.html#Item6) | | January 20, 1986 | Cordelia | S/1986 U 7 | Uranus VI | Terrile, Voyager 2 [95] (http://cfa-www.harvard.edu/iauc/04100/04168.html#Item1) | | January 20, 1986 | Ophelia | S/1986 U 8 | Uranus VII | Terrile, Voyager 2 [96] (http://cfa-www.harvard.edu/iauc/04100/04168.html#Item1) | | January 23, 1986 | Bianca | S/1986 U 9 | Uranus VIII | Smith, Voyager 2 [97] (http://cfa-www.harvard.edu/iauc/04100/04168.html#Item1) | | July 7 / < June 16, 1989 | Proteus | S/1989 N 1 | Neptune VIII | Synnott, Voyager 2 [98] (http://cfa-www.harvard.edu/iauc/03600/03608.html#Item1) [99] (http://cfa-www.harvard.edu/iauc/04800/04806.html#Item1) | | August 2 / < July 28, 1989 | Larissa | S/1989 N 2 | Neptune VII | Reitsema, Hubbard, Lebofsky, Tholen, Voyager 2 [100] (http://cfa-www.harvard.edu/iauc/04800/04824.html#Item1) | | August 2 / < July 28, 1989 | Despina | S/1989 N 3 | Neptune V | Synnott, Voyager 2 [101] (http://cfa-www.harvard.edu/iauc/04800/04824.html#Item1) | | August 2 / < July 28, 1989 | Galatea | S/1989 N 4 | Neptune VI | Synnott, Voyager 2 [102] (http://cfa-www.harvard.edu/iauc/04800/04824.html#Item1) | | September 29 / < September 18, 1989 | Thalassa | S/1989 N 5 | Neptune IV | Terrile, Voyager 2
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