LE OPPOSIZIONI DI MARTE

Le opposizioni di Marte avvengono in media ogni 780 giorni; a causa dell'eccentricità della sua orbita la data dell'opposizione può differire fino a 9 giorni da quella del perigeo. Nelle migliori opposizioni, quelle perieliache, il pianeta rosso può giungere a meno di 0,4 unità astronomiche da noi. Sebbene il periodo sinodico di Marte sia quindi 2 anni e 41 giorni, le opposizioni favorevoli avvengono ad intervalli di 15 o 17 anni. Le opposizioni simili si ripetono ogni 79 anni (15+15+15+17+17) essendo Marte in risonanza 42/79 con la Terra. Risonanze più elevate sono un periodo di 284 anni e di 363. A causa delle variazioni degli elementi orbitali dei pianeti, Marte avrà perigei sempre più vicini alla Terra, fino a giungere intorno all'anno 25000 a sole 0,3613 U.A. Questo è il valore minimo in 2 milioni di anni!

Data TT Dist (mln km) 314/07/21 09:11:07 55.973743 393/07/24 18:44:50 55.980567 472/07/28 04:36:30 55.999980 677/07/24 05:50:18 55.954023 756/07/27 17:22:58 55.902450 835/08/01 01:33:46 55.936790 1040/07/27 03:13:56 55.923086 1119/07/31 14:28:52 55.859486 1198/08/03 23:18:22 55.868230 1277/08/07 10:06:54 55.963120 1403/07/31 00:14:12 55.892134 1482/08/03 12:14:37 55.808593 1561/08/07 00:11:51 55.837778 1640/08/20 09:40:48 55.870546 1719/08/25 19:55:32 55.951170 1766/08/13 22:57:14 55.838948 1845/08/18 11:37:29 55.803162 1924/08/22 23:49:57 55.776939 2003/08/27 09:52:17 55.758006 2050/08/15 12:54:32 55.957274 2082/08/30 19:01:17 55.884319 2129/08/19 21:51:47 55.841268 2208/08/24 09:01:11 55.769118 2287/08/28 22:26:28 55.688406 2366/09/02 08:06:45 55.708569 2413/08/21 10:48:37 55.982064 2445/09/05 16:45:00 55.794539 2492/08/24 19:26:46 55.832519 2524/09/10 04:14:22 55.895245 2571/08/30 06:21:38 55.707589 2650/09/03 18:00:43 55.651584 2729/09/08 04:50:46 55.651036 2808/09/11 15:38:08 55.695627 2855/08/31 18:15:01 55.815633 2887/09/16 00:22:01 55.788124 2934/09/05 03:05:20 55.676245 2966/09/20 10:57:45 55.955833 3013/09/09 13:32:46 55.604319 3092/09/13 03:28:25 55.603619 3171/09/18 14:10:36 55.611448 3218/09/06 16:43:06 55.803412 3250/09/21 22:24:13 55.678590 3297/09/10 01:43:31 55.636516 3329/09/26 10:15:23 55.869467 3376/09/14 12:49:20 55.583129 3455/09/20 01:43:45 55.537510 3534/09/24 13:27:15 55.515831 3581/09/12 16:08:31 55.772561 3613/09/27 23:33:38 55.621919 3660/09/16 02:30:07 55.641123 3692/10/01 09:22:13 55.750675 3739/09/21 12:25:44 55.532109 3771/10/06 20:59:30 55.894216 3818/09/26 00:02:46 55.442196 3897/09/29 12:22:27 55.474144 3944/09/18 14:42:52 55.802118 3976/10/03 23:10:13 55.533167 4023/09/23 01:42:36 55.625940 4055/10/08 08:23:59 55.604598 4102/09/27 11:38:55 55.452125 4134/10/12 18:05:53 55.794431 4181/09/30 20:56:20 55.407540 4260/10/05 08:51:27 55.409034 4307/09/25 10:27:28 55.818100 4339/10/10 21:10:22 55.419114 4386/09/28 23:51:31 55.592013 4418/10/14 05:40:20 55.513596 4465/10/02 08:45:58 55.433969 4497/10/17 14:05:50 55.678479 4544/10/06 16:57:31 55.361331 4576/10/22 02:11:24 55.883926 4623/10/12 05:35:46 55.330756 4670/09/30 07:35:39 55.822101 4702/10/16 17:04:41 55.341803 4749/10/04 19:35:47 55.588295 4781/10/20 02:37:12 55.417487 4828/10/08 05:36:02 55.416438 4860/10/23 12:42:07 55.572793 4907/10/13 16:15:51 55.326326 4939/10/28 22:42:11 55.751882 4986/10/17 02:07:18 55.259943 5018/11/02 09:27:59 55.984120 5033/10/06 04:58:57 55.827279 5065/10/21 13:40:57 55.259432 5112/10/10 16:17:18 55.573584 5144/10/26 02:34:21 55.355277 5191/10/15 05:22:03 55.421480 5223/10/30 11:54:36 55.458606 5270/10/18 15:55:20 55.281782 5302/11/03 21:01:49 55.614350 5349/10/23 00:55:42 55.177446 5381/11/07 08:59:39 55.895740 5396/10/11 04:32:21 55.802230 5428/10/27 12:51:57 55.219320 5475/10/16 15:16:56 55.596704 5507/11/02 01:32:52 55.264805 5554/10/21 04:20:56 55.401298 5586/11/05 11:58:21 55.327092 5633/10/24 15:45:32 55.208265 5665/11/08 20:39:16 55.533044 5712/10/29 00:42:40 55.156140 5744/11/13 07:09:38 55.766295 5759/10/18 04:14:33 55.843615 5791/11/02 10:52:22 55.147685 5838/10/22 13:30:40 55.590768 5870/11/06 23:26:04 55.141396 5917/10/27 02:00:35 55.349328 5949/11/11 10:01:10 55.258065 5996/10/30 13:14:12 55.204755 6028/11/14 18:42:37 55.420301 6075/11/03 22:31:08 55.114907 6107/11/20 04:28:00 55.604403 6122/10/24 01:51:17 55.881090 6154/11/08 08:29:43 55.054373 6186/11/23 14:22:23 55.880531 6201/10/28 11:39:34 55.570908 6233/11/12 18:40:45 55.075897 6280/10/31 21:00:18 55.349056 6312/11/17 05:35:33 55.170312 6359/11/06 08:26:20 55.194727 6391/11/21 16:52:55 55.296256 6438/11/09 20:26:36 55.069402 6470/11/25 00:24:08 55.481560 6485/10/29 00:00:04 55.907515 6517/11/14 04:50:12 54.996817 6549/11/29 09:31:47 55.745273 6564/11/02 08:23:18 55.588411 6596/11/17 13:48:03 55.008010 6643/11/07 16:40:38 55.350501 6675/11/23 02:54:41 55.092415 6722/11/12 05:32:43 55.181826 6754/11/27 13:51:47 55.189470 6801/11/15 17:22:48 55.036171 6833/11/30 21:58:07 55.362643 6848/11/03 21:14:59 55.946314 6880/11/19 02:44:33 54.942154 6912/12/05 08:28:58 55.645256 6927/11/09 06:34:06 55.594775 6959/11/24 12:48:59 54.964932 6991/12/09 19:22:31 55.928234 7006/11/13 16:25:05 55.371470 7038/11/29 00:23:23 55.008868 7085/11/17 03:13:41 55.159304 7117/12/03 12:00:35 55.082059 7164/11/21 15:25:11 54.980930 7196/12/06 22:42:34 55.294643 7211/11/10 19:23:40 55.950576 7243/11/26 03:02:13 54.933364 7275/12/11 07:52:27 55.520693 7290/11/14 06:46:33 55.649914 7322/11/30 12:32:19 54.901337 7354/12/15 17:43:09 55.773221 7369/11/18 16:31:57 55.366306 7401/12/04 22:50:19 54.898840 7448/11/23 02:05:17 55.104984 7480/12/08 10:39:07 55.035588 7527/11/28 13:36:18 54.987582 7559/12/13 22:05:23 55.194825 7606/12/02 01:33:38 54.890000 7638/12/17 07:07:38 55.364231 7653/11/20 05:05:35 55.680282 7685/12/05 11:55:34 54.809393 7717/12/21 15:34:29 55.676041 7732/11/24 15:51:24 55.342325 7764/12/09 20:18:00 54.855471 7811/11/29 23:48:18 55.118575 7843/12/15 07:00:59 54.953747 7890/12/03 09:32:59 54.973041 7922/12/19 19:29:53 55.070235 7969/12/07 22:33:42 54.830457 8001/12/23 04:16:08 55.268072 8016/11/26 01:57:07 55.689741 8048/12/11 08:24:18 54.774130 8080/12/26 11:57:11 55.548769 8095/11/30 12:03:07 55.378485 8127/12/16 16:24:30 54.798133 8159/12/31 22:42:03 55.866362 8174/12/04 19:59:32 55.140746 8206/12/21 03:25:54 54.862787 8253/12/09 06:19:43 54.946659 8285/12/24 14:14:27 54.981117 8332/12/13 17:09:14 54.808092 8364/12/29 00:27:29 55.170266 8379/12/02 20:30:29 55.739416 8411/12/18 03:46:56 54.744369 8444/01/02 10:19:01 55.433162 8458/12/06 07:24:11 55.414755 8490/12/21 14:53:49 54.744329 8523/01/06 18:45:27 55.723264 8537/12/10 18:28:36 55.162855 8569/12/25 23:35:30 54.787990 8616/12/15 03:18:00 54.941416 8648/12/30 09:58:54 54.897393 8695/12/19 13:00:30 54.778815 8728/01/04 23:13:30 55.103205 8742/12/08 17:08:55 55.766885 8774/12/24 02:11:18 54.735517 8807/01/08 09:05:39 55.322112 8821/12/12 05:33:27 55.470329 8853/12/27 13:33:52 54.693439 8886/01/11 17:21:09 55.588784 8900/12/16 17:12:47 55.173639 8932/12/31 22:10:39 54.702712 8965/01/16 04:07:35 55.999407 8979/12/21 02:29:18 54.914685 9012/01/06 09:14:57 54.860432 9058/12/25 12:13:27 54.798995 9091/01/09 21:37:09 55.019185 9105/12/14 17:00:31 55.834138 9137/12/30 00:32:14 54.700216 9170/01/14 08:46:43 55.196681 9184/12/18 03:45:58 55.490908 9217/01/02 12:35:48 54.618444 9249/01/17 18:01:07 55.521611 9263/12/22 16:09:51 55.157683 9296/01/06 22:22:48 54.685302 9328/01/23 03:16:27 55.873779 9342/12/27 02:10:48 54.949227 9375/01/11 07:56:27 54.782291 9421/12/31 11:02:03 54.786363 9454/01/15 19:24:22 54.901365 9468/12/19 16:00:03 55.888041 9501/01/04 22:21:52 54.641311 9533/01/20 07:00:30 55.139126 9547/12/25 01:55:31 55.485036 9580/01/09 09:41:46 54.608015 9612/01/24 16:40:27 55.412215 9626/12/28 12:43:05 55.205004 9659/01/12 20:19:12 54.637964 9691/01/28 01:42:03 55.714867 9706/01/01 23:09:45 54.974777 9738/01/17 06:00:46 54.683556 9785/01/05 09:23:38 54.755337 9817/01/21 15:00:30 54.832578 9831/12/26 14:26:15 55.923965 9864/01/10 17:45:50 54.637637 9896/01/26 02:20:01 55.054228 9910/12/30 21:43:27 55.549175 9943/01/15 04:24:07 54.593357 9975/01/30 14:26:51 55.293380 9990/01/03 07:05:21 55.254850

Avvicinamenti a meno di 56 milioni di km.