Newsgroup: it.scienza.astronomia
Titolo: ciclo di SAROS

20/03/2015 Totale (*) 120 02m47s Islanda, Europa, Nord Africa, Nord
Asia
chi può dare maggiori informazioni?
non è per caso l'eclissi avvenuta nella pianura padana
nel febbraio del 1961?
il ciclo di SAROS di  18 anni e 10 gg X 3 =  54 anni
1961+54= 2015?
grazie per le risposte

Jason13 ha scritto:

Sì, l'eclisse del 20/03/2015 fa parte della serie Saros che ha generato
anche quella del 1961.
Tutte le eclissi della serie 120 si verificano al nodo discendente e la
Luna si sposta progressivamente verso nord ad ogni eclisse.
Ecco di seguito l'elenco completo della serie, prelevato dal sito del
"santone" delle eclissi, ovvero F.Espenak: 
-------
The series began with a partial eclipse in the southern hemisphere on
0933 May 27. The series will end with a partial eclipse in the northern
hemisphere on 2195 Jul 07. The total duration of Saros 120 is 1262.11
years. In summary: 
                         First Eclipse = 0933 May 27   03:38:59 UT
                          Last Eclipse = 2195 Jul 07   15:34:31 UT
                         Duration of Saros 120 = 1262.11 Years
During Saros 120, Earth experiences 71 solar eclipses as follows: 
                             All Eclipses =    71  = 100.0%
                              Partial (P) =    16  =  22.5%
                              Annular (A) =    25  =  35.2%
                                Total (T) =    27  =  38.0%
                               Hybrid (H) =     3  =   4.2%
                          Umbral Eclipses =    55  =  77.5%
                                  Central =    55  =  77.5%
                              Non-Central =     0  =   0.0%
                                One Limit =     0  =   0.0%
              Sequence of eclipses in Saros 120:    7P 25A  3H 27T  9P
The longest and shortest eclipses of Saros series 120 as well as other
eclipse extrema are listed below. 
          Longest  Total  Solar Eclipse:   1997 Mar 09      Duration =
02m50s
         Shortest  Total  Solar Eclipse:   1510 May 08      Duration =
00m22s
          Longest Annular Solar Eclipse:   1167 Oct 14      Duration =
06m25s
         Shortest Annular Solar Eclipse:   1492 Apr 26      Duration =
00m16s
          Largest Partial Solar Eclipse:   2051 Apr 11     Magnitude =
0.9846
         Smallest Partial Solar Eclipse:   2195 Jul 07     Magnitude =
0.0357
                                   Solar Eclipses of Saros 120
      Local Circumstances at Greatest Eclipse for Saros 120
               U.T.
            Greatest    Saros        Eclipse              Sun  Path
Center
     Date    Eclipse Type #    Gamma   Mag.   Lat.  Long. Alt Width 
Dur.
                                               °      °     °  km
 0933 May 27  03:39   Pb 120  -1.525  0.065  67.7S 132.0E  
0             
 0951 Jun 07  10:03   P  120  -1.440  0.209  66.7S  25.1E  
0             
 0969 Jun 17  16:25   P  120  -1.354  0.358  65.7S  80.9W  
0             
 0987 Jun 28  22:49   P  120  -1.268  0.504  64.8S 173.0E  
0             
 1005 Jul 09  05:15   P  120  -1.182  0.650  63.9S  66.8E  
0             
 1023 Jul 20  11:46   P  120  -1.100  0.790  63.0S  40.2W  
0             
 1041 Jul 30  18:21   P  120  -1.022  0.923  62.3S 148.2W  
0             
 1059 Aug 11  01:04   A  120  -0.948  0.934  49.8S 126.6E  18  767 
06m11s
 1077 Aug 21  07:55   A  120  -0.881  0.934  43.8S  27.9E  28  500 
06m21s
 1095 Sep 01  14:53   A  120  -0.819  0.934  41.1S  75.1W  35  412 
06m24s
 1113 Sep 11  22:02   A  120  -0.765  0.934  40.4S 178.6E  40  372 
06m25s
 1131 Sep 23  05:20   A  120  -0.718  0.933  41.1S  69.9E  44  351 
06m24s
 1149 Oct 03  12:50   A  120  -0.679  0.932  42.9S  41.7W  47  339 
06m24s
 1167 Oct 14  20:27   A  120  -0.647  0.931  45.4S 155.0W  49  331 
06m25s
 1185 Oct 25  04:15   A  120  -0.622  0.931  48.3S  89.5E  51  327 
06m24s
 1203 Nov 05  12:10   A  120  -0.603  0.931  51.3S  26.8W  53  323 
06m23s
 1221 Nov 15  20:13   A  120  -0.589  0.931  54.1S 144.0W  54  319 
06m21s
 1239 Nov 27  04:19   A  120  -0.579  0.932  56.4S  99.0E  54  313 
06m16s
 1257 Dec 07  12:31   A  120  -0.572  0.933  57.8S  18.0W  55  305 
06m09s
 1275 Dec 18  20:44   A  120  -0.565  0.935  58.0S 134.6W  55  293 
06m00s
 1293 Dec 29  04:57   A  120  -0.558  0.938  56.8S 108.4E  56  279 
05m48s
 1312 Jan 09  13:09   A  120  -0.549  0.941  54.2S   9.4W  56  261 
05m33s
 1330 Jan 19  21:19   A  120  -0.538  0.945  50.6S 128.2W  57  240 
05m16s
 1348 Jan 31  05:22   A  120  -0.522  0.950  45.9S 112.7E  58  215 
04m55s
 1366 Feb 10  13:21   A  120  -0.501  0.955  40.5S   6.7W  60  189 
04m32s
 1384 Feb 21  21:12   A  120  -0.473  0.961  34.5S 125.4W  62  162 
04m05s
 1402 Mar 04  04:59   A  120  -0.440  0.966  28.2S 116.5E  64  134 
03m34s
 1420 Mar 14  12:36   A  120  -0.399  0.973  21.4S   0.3E  66  106 
02m59s
 1438 Mar 25  20:08   A  120  -0.352  0.979  14.4S 115.0W  69   80 
02m21s
 1456 Apr 05  03:31   A  120  -0.297  0.985   7.3S 131.9E  73   54 
01m40s
 1474 Apr 16  10:50   A  120  -0.238  0.992   0.2S  20.1E  76   30 
00m58s
 1492 Apr 26  18:02   A  120  -0.172  0.998   6.8N  89.6W  80    8 
00m16s
 1510 May 08  01:12   H  120  -0.103  1.003  13.6N 161.8E  84   12 
00m22s
 1528 May 18  08:17   H  120  -0.029  1.009  19.9N  54.9E  88   29 
00m56s
 1546 May 29  15:21   H  120   0.047  1.013  25.7N  50.8W  87   46 
01m24s
 1564 Jun 08  22:24   Tm 120   0.126  1.017  30.8N 155.2W  83   60 
01m44s
 1582 Jun 20  05:28   T  120   0.204  1.021  35.0N 101.0E  78   73 
01m59s
 1600 Jul 10  12:33   T  120   0.281  1.024  38.2N   2.5W  73   84 
02m08s
 1618 Jul 21  19:43   T  120   0.356  1.026  40.4N 106.2W  69   94 
02m13s
 1636 Aug 01  02:57   T  120   0.428  1.028  41.5N 149.0E  64  103 
02m15s
 1654 Aug 12  10:17   T  120   0.496  1.028  41.7N  42.5E  60  110 
02m16s
 1672 Aug 22  17:44   T  120   0.560  1.029  41.2N  66.2W  56  117 
02m15s
 1690 Sep 03  01:17   T  120   0.617  1.029  40.3N 177.4W  52  122 
02m13s
 1708 Sep 14  09:00   T  120   0.669  1.028  39.2N  68.4E  48  126 
02m10s
 1726 Sep 25  16:51   T  120   0.714  1.027  38.0N  48.9W  44  129 
02m07s
 1744 Oct 06  00:51   T  120   0.752  1.026  37.0N 169.0W  41  133 
02m04s
 1762 Oct 17  09:00   T  120   0.784  1.025  36.2N  67.6E  38  135 
02m02s
 1780 Oct 27  17:18   T  120   0.808  1.024  35.6N  58.6W  36  138 
02m00s
 1798 Nov 08  01:44   T  120   0.827  1.024  35.2N 172.5E  34  141 
01m59s
 1816 Nov 19  10:17   T  120   0.841  1.023  35.0N  41.5E  32  145 
02m00s
 1834 Nov 30  18:56   T  120   0.850  1.023  35.0N  91.6W  32  150 
02m02s
 1852 Dec 11  03:41   T  120   0.855  1.024  35.2N 133.9E  31  156 
02m05s
 1870 Dec 22  12:28   T  120   0.859  1.025  35.8N   1.5W  31  165 
02m11s
 1889 Jan 01  21:17   T  120   0.860  1.026  36.7N 137.6W  30  175 
02m17s
 1907 Jan 14  06:06   T  120   0.863  1.028  38.3N  86.4E  30  189 
02m25s
 1925 Jan 24  14:54   T  120   0.866  1.030  40.5N  49.6W  30  206 
02m32s
 1943 Feb 04  23:38   T  120   0.873  1.033  43.6N 175.1E  29  229 
02m39s
 1961 Feb 15  08:19   T  120   0.883  1.036  47.4N  40.0E  28  258 
02m45s
 1979 Feb 26  16:54   T  120   0.898  1.039  52.1N  94.5W  26  298 
02m49s
 1997 Mar 09  01:24   T  120   0.918  1.042  57.8N 130.7E  23  356 
02m50s
 2015 Mar 20  09:46   T  120   0.945  1.045  64.4N   6.6W  18  463 
02m47s
 2033 Mar 30  18:01   T  120   0.978  1.046  71.3N 155.7W  11  781 
02m37s
 2051 Apr 11  02:09   P  120   1.017  0.985  71.6N  32.3E  
0             
 2069 Apr 21  10:09   P  120   1.062  0.899  71.0N 101.2W  
0             
 2087 May 02  18:02   P  120   1.114  0.801  70.3N 127.6E  
0             
 2105 May 14  01:48   P  120   1.171  0.692  69.4N   1.4W  
0             
 2123 May 25  09:29   P  120   1.232  0.573  68.5N 128.3W  
0             
 2141 Jun 04  17:05   P  120   1.298  0.446  67.5N 106.6E  
0             
 2159 Jun 16  00:37   P  120   1.367  0.313  66.5N  17.1W  
0             
 2177 Jun 26  08:07   P  120   1.437  0.176  65.5N 139.8W  
0             
 2195 Jul 07  15:35   Pe 120   1.509  0.036  64.6N  98.5E  
0