Mars Events: Data on Future Apparitions of Mars =============================================== by Jeffery D. Beish, http://www.alpo-astronomy.org/jbeish/Observing_Mars.html extracted by Hartmut Frommert, http://spider.seds.org/ Version of July 23, 2023 Table I. Earth-Mars Seasonal Duration Areocentric Martian Season Duration Duration Duration longitude Northern Southern Earth Mars Mars of the Sun Hemisphere Hemisphere Days SOLS Days 000 - 089 Spring Autumn 92.764 193.30 198.61 090 - 179 Summer Winter 93.647 178.64 183.55 180 - 269 Autumn Spring 89.836 142.70 146.62 270 - 360 Winter Summer 88.997 153.95 158.18 Table II. FUTURE SEASONS OF MARS (0 Ls) (90 Ls) (180 Ls) (270) Northern Spring Northern Summer Northern Autumn Northern Winter Southern Autumn Southern Winter Southern Spring Southern Summer 2009 Oct 27 2010 May 13 2010 Nov 13 2011 Apr 09 2011 Sep 14 2012 Mar 30 2012 Sep 30 2013 Feb 24 2013 Aug 01 2014 Feb 15 2014 Aug 18 2015 Jan 12 2015 Jun 19 2016 Jan 03 2016 Jul 05 2016 Nov 29 2017 May 06 2017 Nov 20 2018 May 23 2018 Oct 17 2019 Mar 24 2019 Oct 08 2020 Apr 09 2020 Sep 03 2021 Feb 08 2021 Aug 25 2022 Feb 25 2022 Jul 22 2022 Dec 27 2023 Jul 13 2024 Jan 13 2024 Jun 08 2024 Nov 13 2025 May 30 2025 Nov 30 2026 Apr 25 2026 Oct 01 2027 Mar 02 2027 Oct 18 2028 Mar 12 2028 Aug 18 2029 Mar 04 2029 Sep 04 2030 Jan 28 2030 Jul 06 2031 Jan 20 2031 Jul 23 2031 Dec 16 2032 May 23 2032 Dec 07 2033 Jun 09 2033 Nov 02 2034 Apr 10 2034 Oct 02 2035 Apr 27 2035 Sep 20 2036 Feb 25 2036 Sep 11 2037 Mar 14 2037 Aug 07 2038 Jan 13 2038 Jul 30 2039 Jan 30 2039 Jun 25 2039 Nov 30 2040 Jun 16 2040 Dec 17 2041 May 12 2041 Oct 17 2042 May 04 2042 Nov 03 2043 Mar 30 2043 Sep 05 2044 Mar 21 2044 Sep 20 2045 Feb 14 2045 Jul 22 2046 Feb 06 2046 Aug 08 2047 Jan 02 2047 Jun 09 2047 Dec 25 2048 Jun 25 2048 Nov 19 2049 Apr 26 2049 Nov 11 2050 May 13 2050 Oct 07 2051 Mar 13 2051 Sep 28 2052 Mar 30 2052 Aug 24 2053 Jan 28 2053 Aug 15 2054 Feb 15 2054 Jul 12 2054 Dec 16 2055 Jul 03 2056 Jan 03 2056 May 29 2056 Nov 02 2057 May 20 2057 Nov 19 2058 Apr 16 2058 Sep 20 2059 Apr 07 2059 Oct 07 2060 Mar 03 2060 Aug 07 2061 Feb 22 2061 Aug 24 2062 Jan 19 2062 Jun 25 2063 Jan 10 2063 Jul 12 2063 Dec 07 Table III. FUTURE CONJUNCTIONS Conjunction Mars Mars Solar Solar Distance Date (UT) R.A. Dec R.A. Dec A.U. 2011-02-04 (1650) 21:13 -17.2 21:12 -16.2 2.3746 2013-04-17 (2341) 01:45 +10.4 01:44 +10.8 2.4321 2015-06-14 (1439) 05:30 +23.9 05:30 +23.3 2.5684 2017-07-26 (2357) 08:27 +20.3 08:26 +19.2 2.6554 2019-09-02 (1015) 10:46 +08.9 10:44 +07.9 2.6746 2021-10-08 (0347) 12:56 -05.4 12:55 -06.0 2.6284 2023-11-18 (0447) 15:32 -19.3 15:32 -19.2 2.5261 2026-01-09 (0959) 19:23 -23.0 19:22 -22.1 2.4035 2028-03-21 (0115) 00:04 -00.4 00:03 +00.4 2.3878 2030-05-25 (1024) 04:09 +21.3 04:09 +21.0 2.5175 2032-07-11 (0516) 07:24 +23.0 07:24 +22.0 2.6293 2034-08-19 (0529) 09:55 +13.8 09:54 +12.7 2.6751 2036-09-23 (1543) 12:05 +00.3 12:04 -00.5 2.6539 2038-11-01 (0708) 14:26 -14.3 14:26 -14.5 2.5719 2040-12-17 (1303) 17:43 -24.0 17:43 -23.4 2.4489 2043-02-20 (1807) 22:17 -11.7 22:15 -10.8 2.3702 2045-05-02 (1028) 02:40 +15.4 02:39 +15.6 2.4620 2047-06-25 (0252) 06:15 +24.2 06:15 +23.4 2.5928 2049-08-04 (1505) 09:02 +18.1 09:00 +17.0 2.6653 2051-09-10 (1155) 11:16 +05.8 11:14 +04.8 2.6700 2053-10-16 (1717) 13:28 -08.8 13:28 -09.2 2.6105 2055-11-28 (1415) 16:17 -21.7 16:17 -21.4 2.4989 2058-01-23 (2054) 20:26 -20.2 20:25 -19.2 2.3846 2060-04-06 (0428) 01:03 +06.2 01:02 +06.7 2.4100 2062-06-06 (0630) 04:58 +23.2 04:58 +22.7 2.5466 2064-07-20 (0857) 08:03 +21.5 08:02 +20.5 2.6450 Table IV. FUTURE APPARITIONS OF MARS Opposition Ls Dec Dia. Closest Approach Dec Dia. Distance Date (UT) deg deg " (UT) deg " A.U. 2010-01-29 (1937) 044 +22.2 14.1 2010-01-27 (1902) +22.2 14.1 0.66398 2012-03-03 (2004) 078 +10.3 13.9 2012-03-05 (1701) +10.3 13.9 0.67368 2014-04-08 (2057) 113 -05.2 15.1 2014-04-14 (1254) -05.2 15.2 0.61756 2016-05-22 (1111) 156 -21.7 18.4 2016-05-30 (2136) -21.7 18.6 0.50321 2018-07-27 (0507) 219 -25.5 24.3 2018-07-31 (0751) -25.5 24.3 0.38496 2020-10-13 (2320) 295 +05.5 22.3 2020-10-06 (1419) +05.5 22.6 0.41492 2022-12-08 (0536) 351 +25.0 17.0 2022-12-01 (0218) +25.0 17.2 0.54447 2025-01-16 (0232) 031 +25.1 14.6 2025-01-12 (1338) +25.1 14.6 0.64228 2027-02-19 (1545) 065 +15.4 13.8 2027-02-20 (0014) +15.4 13.8 0.67792 2029-03-25 (0743) 100 +01.0 14.4 2029-03-29 (1256) +01.6 14.5 0.64722 2031-05-04 (1157) 138 -15.5 16.8 2031-03-12 (0350) -15.0 16.9 0.55336 2033-06-27 (0124) 191 -27.8 21.9 2033-07-05 (1119) -28.3 22.1 0.42302 2035-09-15 (1933) 267 -08.0 24.5 2036-09-11 (1421) -07.7 24.6 0.38041 2037-11-19 (0904) 332 +20.3 18.7 2037-11-11 (0800) +20.5 19.0 0.49358 2040-01-02 (1521) 016 +26.7 15.3 2039-12-28 (1447) +26.4 15.3 0.61092 2042-02-06 (1159) 052 +19.8 13.9 2042-02-05 (0757) +19.7 13.9 0.67174 2044-03-11 (1244) 086 +06.9 14.0 2044-03-14 (0607) +07.3 14.0 0.66708 2046-04-11 (1801) 122 -09.0 15.6 2046-04-24 (0433) -08.4 15.7 0.59704 2048-06-03 (1445) 168 -24.8 19.5 2048-06-12 (0141) -24.8 19.8 0.47366 2050-08-14 (0746) 236 -20.7 25.0 2050-08-15 (1255) -20.8 25.0 0.37405 2052-10-28 (0628) 310 +12.0 21.0 2052-10-20 (0512) +12.4 21.2 0.44103 2054-12-17 (2209) 0 +26.3 16.3 2054-12-11 (1144) +26.2 16.4 0.57032 2057-01-24 (0126) 38 +23.4 14.3 2057-01-21 (0903) +23.2 14.3 0.65552 2059-02-27 (0525) 73 +12.3 13.8 2059-02-28 (1032) +12.5 13.8 0.67681 2061-04-02 (1247) 108 -2.6 14.7 2061-04-07 (1354) -2.0 14.8 0.63109 Table V. Perihelion and Aphelion Perihelion Aphelion 2009-04-21 2010-03-31 2011-03-09 2012-02-16 2013-01-24 2014-01-02 2014-12-11 2015-11-20 2016-10-28 2017-10-07 2018-09-15 2019-08-25 2020-08-02 2021-07-12 2022-06-20 2023-05-30 2024-05-07 2025-04-16 2026-03-25 2027-03-04 2029-12-28 2030-12-07 2031-11-15 2032-10-24 2033-10-02 2034-09-11 2035-08-20 2036-07-29 2037-07-07 2038-06-16 2039-05-25 2040-05-03 2041-04-11 2042-03-21 2043-02-27 2044-02-06 2045-01-14 2045-12-24 2046-12-02 2047-11-11 2048-10-19 2049-09-28 2050-09-06 2051-08-16 2052-07-25 2053-07-03 2054-06-12 2055-05-21 2056-04-29 2057-04-07 2058-03-17 2059-02-23 2060-02-02 2061-01-10 2061-12-20 2062-11-28 Table VI. Future Dates of Quadrature (W and E) Date Ls Date Ls Western deg Eastern deg 2022-08-27 293 2023-03-17 38 2024-10-14 345 2025-04-21 73 2026-11-19 24 2027-05-26 108 2028-12-21 59 2029-07-02 146 2031-01-24 92 2031-08-20 196 2033-03-04 130 2033-11-01 269 2035-05-04 185 2036-01-11 336 2037-07-31 266 2038-03-01 23 2039-09-29 337 2040-04-06 59 2041-11-06 10 2042-05-12 93 2043-12-10 45 2044-06-15 129 2046-01-11 78 2046-07-30 175 2048-02-16 114 2048-09-30 238 2050-04-07 160 2050-12-19 314 2052-06-27 233 2053-02-12 7 2054-09-09 306 2055-03-25 45 2056-10-23 355 2057-04-29 81 2058-11-27 32 2059-06-03 116 2060-12-28 65 2061-07-10 155 Table VII. Dates when begins and ends retrogression Date Ls Date Ls begins deg ends deg 2022-10-30 330 2023-01-12 132 ?? 2024-12-06 12 2025-02-24 205 2027-01-10 48 2027-04-01 83 2029-02-14 82 2029-05-05 118 2031-03-29 121 2031-06-13 159 2033-05-26 2033-08-01 212 2035-08-15 247 2035-10-15 286 2037-10-12 318 2037-12-23 350 2039-11-23 356 2040-02-09 34 2041-12-28 34 2042-03-18 70 2044-01-31 68 2044-04-21 90 2046-03-11 105 2046-05-28 142 2048-06-30 125 2048-07-10 188 2050-07-15 217 2050-09-13 255 2052-09-22 288 2052-11-29 328 2054-11-08 340 2055-01-23 18 2056-12-14 20 2057-03-04 56 2059-01-18 55 2059-04-09 91 2061-02-22 90 2061-05-13 126 Reference: General Information for Apparitions of Mars, by Jeffrey D. Beish http://www.alpo-astronomy.org/jbeish/General_Info_Mars.html