OCCULTATION of ZC537 on 31 Dec 2025



(cyan=occultation at moonrise/moonset; red dotted=daytime occultation; blue=twilight occultation; white=night time occultation)

UNIVERSAL TIME OF DISAPPEARANCE & REAPPEARANCE

Occultation predictions of     537SB6   Magnitude 3.7
Date 2025 Dec 31

Moon: % illumination = 88+,  Solar elongation = 140


      Disappearance
                                       U.T.  Sun Moon     CA  PA  WA   a    b
Location                             h  m  s Alt Alt Az    o   o   o  m/o  m/o

 1 CA Alert                         12 52 13     17 355  49N  41  53 -0.2 -0.6
 2 CA Baker Lake                    13 12  8      2 329  60N  52  64 -0.4 -0.6
 3 CA Burwash                       13 27 53     14 296  86S  86  98 -0.2 -1.3
 4 CA Cambridge Bay                 13 11 31      8 320  62N  54  67 -0.3 -0.8
 5 CA Clyde River                   12 59 25 -11  5 351  42N  34  46 -0.3 -0.3
 6 CA Coppermine                    13 15 10     10 312  69N  61  74 -0.2 -1.0
 7 CA Dawson                        13 24 16     15 294  90N  82  94 -0.2 -1.3
 8 CA Dawson Creek                  13 28  9      2 312  87N  79  92 -0.4 -0.9
 9 CA Dease Lake                    13 29 11      8 304  89S  83  96 -0.3 -1.1
10 CA Eureka                        12 57 57     15 334  52N  44  56 -0.2 -0.9
11 CA Faro                          13 25 33     12 300  88N  80  93 -0.2 -1.2
12 CA Fort Chipewyan                13 21 44      1 318  76N  68  80 -0.4 -0.8
13 CA Fort McPherson                13 19 16     15 296  82N  74  86 -0.1 -1.3
14 CA Fort Nelson                   13 26 10      5 309  85N  77  89 -0.4 -1.0
15 CA Fort Resolution               13 20 48      4 316  75N  67  80 -0.4 -0.8
16 CA Fort Saint John               13 27 56      3 311  87N  79  92 -0.4 -0.9
17 CA Fort Simpson                  13 22 47      7 310  80N  72  84 -0.3 -1.0
18 CA Fort Smith                    13 21  6      3 317  75N  67  80 -0.4 -0.8
19 CA Gjoa Haven                    13  9 17      6 328  57N  49  61 -0.3 -0.7
20 CA Grande Prairie                13 28  5      1 313  87N  79  92 -0.5 -0.9
21 CA Hall Beach                    13  4 30      4 340  49N  40  53 -0.3 -0.5
22 CA Hay River                     13 21 50      5 314  77N  69  82 -0.4 -0.9
23 CA High Level                    13 24 19      3 314  81N  73  85 -0.4 -0.9
24 CA Holman Island                 13 12 40     13 309  68N  60  73 -0.2 -1.1
25 CA Inuvik                        13 17 57     15 297  80N  72  84 -0.1 -1.3
26 CA Mayo                          13 24 16     14 297  88N  80  92 -0.2 -1.3
27 CA Nanisivik                     13  3 12      9 337  50N  42  54 -0.3 -0.6
28 CA Norman Wells                  13 20 29     11 304  79N  71  84 -0.2 -1.1
29 CA Old Crow                      13 19 36     17 292  85N  77  89 -0.1 -1.4
30 CA Peace River                   13 26 32      2 314  84N  76  89 -0.4 -0.9
31 CA Pelly Bay                     13  7 27      5 333  53N  45  58 -0.3 -0.6
32 CA Pond Inlet                    13  1 30      8 343  47N  39  51 -0.3 -0.5
33 CA Port Hardy                    13 36 43      1 308  78S  94 107 -0.5 -1.1
34 CA Prince George                 13 31  4      2 311  88S  84  97 -0.5 -1.0
35 CA Prince Pupert                 13 34  6      5 305  81S  91 103 -0.4 -1.2
36 CA Quesnel                       13 31 49      1 311  86S  86  98 -0.5 -1.0
37 CA Repulse Bay                   13  7 18      3 337  52N  44  56 -0.4 -0.5
38 CA Resolute                      13  4 20     11 327  55N  46  59 -0.2 -0.9
39 CA Sachs Harbour                 13 12 23     15 302  71N  63  75 -0.1 -1.2
40 CA Sandspit                      13 35 56      5 304  78S  94 107 -0.4 -1.2
41 CA Smithers                      13 32  6      4 307  85S  87  99 -0.4 -1.1
42 CA Spence Bay                    13  7 59      7 330  55N  47  60 -0.3 -0.7
43 CA Terrace                       13 33  4      5 306  83S  89 101 -0.4 -1.1
44 CA Teslin                        13 27 56     10 301  89S  83  95 -0.3 -1.2
45 CA Tuktoyaktuk                   13 16 28     16 297  78N  70  83 -0.1 -1.3
46 CA Watson Lake                   13 26 49      9 304  88N  80  92 -0.3 -1.1
47 CA Whitehorse                    13 27 52     11 299  88S  84  96 -0.2 -1.3
48 CA Williams Lake                 13 32 24      0 311  85S  87  99 -0.5 -0.9
49 CA Wrigley                       13 21 58      9 307  80N  72  84 -0.3 -1.0
50 CA Yellowknife                   13 19 58      5 315  74N  66  79 -0.3 -0.9
53 CN Urumqi                        11 48 40 -12 44  97  49S 123 136 +1.8 +0.0
55 GL Jakobshavn                    12 53  2  -6  3   5  34N  26  39 -0.4 +0.0
56 GL Thule                         12 56 54     11 350  45N  37  49 -0.3 -0.5
62 KZ Semiplatinsk                  11 45 53  -9 37  97  78S  94 107 +0.7 +1.3
66 NO Batsfjord                     12 19 20  -6 19  71  46N  37  50 -0.3 +1.5
70 NO Svalbard                      12 33 29     19  63  45N  37  49 -0.2 +1.2
71 NO Svartnes                      12 18 32  -6 19  72  46N  38  51 -0.3 +1.5
72 RU Abakan                        11 59 49     45 113  69S 103 115 +1.1 +0.9
73 RU Anadyr                        13 20 29     34 255  65S 107 119 +0.3 -2.0
74 RU Barnaul                       11 52 12     40 103  79S  93 106 +0.8 +1.3
75 RU Bratsk                        12 14  7     51 132  62S 110 123 +1.3 +0.3
77 RU Irkutsk                       12 19 45     55 133  42S 130 143 +2.2 -1.2
78 RU Kemorovo                      11 56 38     41 108  79S  93 106 +0.8 +1.3
80 RU Magadan                       13 17 54     47 229  36S 136 148 +0.9 -3.6
83 RU Nizhnevartovsk                11 59 51     35 104  83N  75  87 +0.4 +1.7
84 RU Omsk                          11 48 56  -8 33  95  87N  79  92 +0.4 +1.6
86 RU Pevek                         13 12 49     36 244  71S 101 114 +0.4 -1.7
87 RU Polyarny                      12 29 45     47 157  78S  94 106 +0.8 +0.5
88 RU Provideniya Bay               13 19 33     36 250  62S 110 122 +0.4 -2.0
89 RU Salekhard                     12  7 35     31 100  69N  61  74 +0.1 +1.8
90 RU Surgut                        11 59 27     34 101  80N  72  84 +0.3 +1.7
93 RU Ulan-Ude                      12 28 21     58 140  31S 142 154 +3.2 -3.7
94 RU Yakutsk                       12 49 27     52 189  54S 119 131 +1.2 -1.4
95 US Anchorage Ak                  13 30  0     18 287  77S  95 107 -0.1 -1.6
96 US Barter Island Ak              13 16 14     20 287  83N  75  88 +0.0 -1.4
97 US Chugiak Ak                    13 29 55     18 287  78S  94 107 -0.1 -1.6
98 US Clear Mews Ak                 13 25  3     19 286  84S  88 101 -0.1 -1.5
99 US Deadhorse Ak                  13 16 11     21 283  85N  77  90 +0.0 -1.5
100 US Delta Junction Ak             13 25 12     18 289  86S  86  99 -0.1 -1.5
101 US Fairbanks Ak                  13 24  9     19 287  86S  86  99 -0.1 -1.5
102 US Fort Richardson Ak            13 29 49     18 288  78S  94 107 -0.1 -1.6
103 US Fort Yukon Ak                 13 21 23     19 288  90N  82  94 -0.1 -1.4
104 US Juneau Ak                     13 30 42     10 301  85S  87 100 -0.3 -1.2
105 US Kodiak Ak                     13 35 55     18 288  68S 104 117 -0.2 -1.7
106 US Sitka Ak                      13 32 34      9 301  82S  90 103 -0.3 -1.3
107 US Skagway Ak                    13 29 29     11 300  86S  86  99 -0.3 -1.3


      Reappearance
                                       U.T.  Sun Moon     CA  PA  WA   a    b
Location                             h  m  s Alt Alt Az    o   o   o  m/o  m/o

 1 CA Alert                         13 33  3     17   4 -59N 293 306 -0.2 +0.4
 3 CA Burwash                       14 17 53      8 306 -85S 257 269 -0.3 -1.1
 7 CA Dawson                        14 14 52     10 305 -88S 260 273 -0.3 -1.2
10 CA Eureka                        13 39 36     15 344 -61N 292 304 -0.3 -0.4
11 CA Faro                          14 15  5      7 310 -90S 262 274 -0.4 -1.1
13 CA Fort McPherson                14  9 30     11 307 -85N 267 279 -0.3 -1.2
24 CA Holman Island                 13 59 14     10 320 -73N 280 292 -0.4 -1.1
25 CA Inuvik                        14  7 56     12 308 -84N 269 281 -0.3 -1.3
26 CA Mayo                          14 14 23      9 308 -90S 262 274 -0.3 -1.1
27 CA Nanisivik                     13 41 36      8 346 -57N 296 308 -0.5 -0.4
28 CA Norman Wells                  14  9  5      7 314 -82N 270 282 -0.4 -1.1
29 CA Old Crow                      14 10 42     13 303 -88N 264 276 -0.3 -1.3
38 CA Resolute                      13 45 43     10 337 -61N 291 303 -0.4 -0.6
39 CA Sachs Harbour                 14  0 35     12 313 -76N 276 289 -0.3 -1.2
45 CA Tuktoyaktuk                   14  6 21     12 308 -82N 270 282 -0.3 -1.3
51 CN Hotan                         12  4 21  -6 41  89 -11S 184 196 -1.0 +3.8
52 CN Kashi                         12 14  7  -6 40  90 -30S 202 215 -0.2 +2.7
53 CN Urumqi                        12 24 12     50 105 -18S 190 202 -0.4 +3.6
54 FI Ivalo                         12 57 48  -6 21  77 -62N 291 303 +0.1 +1.6
56 GL Thule                         13 33 38     11 358 -53N 299 311 -0.4 +0.1
57 KG Bishkek                       12 22 59  -8 41  93 -42S 214 226 +0.1 +2.3
58 KZ Alma-Ata                      12 23 49 -10 43  96 -38S 211 223 +0.0 +2.5
59 KZ Balkhash                      12 31 39 -11 42  99 -49S 222 234 +0.2 +2.2
60 KZ Dzhezkazgan                   12 31 38  -7 37  94 -61S 234 246 +0.2 +1.9
61 KZ Kustanay                      12 40 25  -9 35  96 -75S 247 259 +0.3 +1.7
62 KZ Semiplatinsk                  12 40 42     46 109 -49S 222 234 +0.3 +2.2
63 KZ Tselinograd                   12 39  3 -12 40 101 -62S 235 247 +0.3 +1.9
64 NO Alta                          12 59 53  -7 20  74 -59N 293 305 +0.0 +1.6
65 NO Banak                         13  0  4  -7 20  75 -60N 292 304 +0.0 +1.6
66 NO Batsfjord                     13  1 12  -9 22  80 -63N 289 302 +0.1 +1.6
67 NO Hasvik                        13  0 42  -7 20  73 -59N 294 306 +0.0 +1.6
68 NO Kirkenes                      12 59 47  -8 22  80 -63N 289 301 +0.1 +1.6
69 NO Sorkjosen                     12 59 34  -6 19  72 -58N 294 307 +0.0 +1.6
70 NO Svalbard                      13 14  2     21  73 -59N 293 305 +0.0 +1.8
71 NO Svartnes                      13  0 55  -9 23  81 -64N 289 301 +0.1 +1.6
72 RU Abakan                        12 52 56     52 128 -42S 215 227 +0.5 +2.3
73 RU Anadyr                        14 12  9     28 267 -60S 232 245 +0.4 -0.8
74 RU Barnaul                       12 48 29     48 117 -51S 224 236 +0.4 +2.1
75 RU Bratsk                        13  4 31     55 149 -37S 209 222 +0.6 +2.4
76 RU Chelyabinsk                   12 43 15  -9 34  96 -80S 252 265 +0.3 +1.7
77 RU Irkutsk                       12 52 47     59 146 -16S 188 200 +0.0 +4.1
78 RU Kemorovo                      12 53 40     49 124 -52S 225 237 +0.5 +2.0
79 RU Kurgan                        12 44 59 -11 37 100 -76S 249 261 +0.4 +1.7
80 RU Magadan                       13 51 42     44 239 -26S 199 211 +1.0 +2.0
81 RU Magnetiogorsk                 12 39 15  -6 32  92 -80S 253 265 +0.3 +1.7
82 RU Murmansk                      12 58 30  -8 23  82 -65N 287 300 +0.1 +1.6
83 RU Nizhnevartovsk                12 59  8     42 119 -73S 246 258 +0.5 +1.7
84 RU Omsk                          12 47 10     42 108 -67S 239 251 +0.4 +1.8
85 RU Perm                          12 45 52  -8 31  94 -89S 261 273 +0.3 +1.6
86 RU Pevek                         14  7  5     31 258 -64S 236 248 +0.4 -0.8
87 RU Polyarny                      13 28 58     48 177 -59S 232 244 +0.7 +1.1
88 RU Provideniya Bay               14 10 24     30 263 -56S 229 241 +0.5 -0.6
89 RU Salekhard                     13  3 33     36 114 -90S 262 274 +0.4 +1.5
90 RU Surgut                        12 58 11     41 116 -77S 249 261 +0.5 +1.6
91 RU Sverdlovsk                    12 45 26  -9 34  97 -83S 255 267 +0.3 +1.7
92 RU Syktyvkar                     12 50 25  -8 29  93 -83N 270 282 +0.3 +1.6
93 RU Ulan-Ude                      12 49 33     60 149  -4S 177 189 -0.8 +6.4
94 RU Yakutsk                       13 36 50     50 206 -37S 210 222 +0.8 +1.6
95 US Anchorage Ak                  14 20 30     12 298 -76S 248 260 -0.1 -1.1
96 US Barter Island Ak              14  8  3     16 299 -87N 265 277 -0.2 -1.4
97 US Chugiak Ak                    14 20 26     12 298 -76S 248 261 -0.1 -1.1
98 US Clear Mews Ak                 14 16 41     14 297 -81S 254 266 -0.1 -1.2
99 US Deadhorse Ak                  14  8 43     17 294 -90S 262 275 -0.1 -1.4
100 US Delta Junction Ak             14 16 30     12 300 -83S 256 268 -0.2 -1.2
101 US Fairbanks Ak                  14 15 51     14 298 -83S 256 268 -0.2 -1.2
102 US Fort Richardson Ak            14 20 21     12 298 -76S 249 261 -0.1 -1.1
103 US Fort Yukon Ak                 14 13  9     14 299 -87S 260 272 -0.2 -1.3
105 US Kodiak Ak                     14 24  8     12 297 -67S 240 252 -0.1 -0.9



      Sites
Location                             E. Long    Latitude

 1 CA Alert                        - 62 16.8     82 31.1
 2 CA Baker Lake                   - 96  4.7     64 17.9
 3 CA Burwash                      -139  2.4     61 22.3
 4 CA Cambridge Bay                -105  8.3     69  6.5
 5 CA Clyde River                  - 68 31.0     70 29.2
 6 CA Coppermine                   -115  8.6     67 49.0
 7 CA Dawson                       -139  7.7     64  2.6
 8 CA Dawson Creek                 -120 10.9     55 44.5
 9 CA Dease Lake                   -130  1.9     58 25.3
10 CA Eureka                       - 85 48.8     79 59.7
11 CA Faro                         -133 22.5     62 12.5
12 CA Fort Chipewyan               -111  7.0     58 46.0
13 CA Fort McPherson               -134 51.6     67 24.5
14 CA Fort Nelson                  -122 35.8     58 50.2
15 CA Fort Resolution              -113 41.4     61 10.8
16 CA Fort Saint John              -120 44.4     56 14.3
17 CA Fort Simpson                 -121 14.2     61 45.6
18 CA Fort Smith                   -111 57.6     60  1.3
19 CA Gjoa Haven                   - 95 51.0     68 38.1
20 CA Grande Prairie               -118 53.1     55 10.8
21 CA Hall Beach                   - 81 14.6     68 46.6
22 CA Hay River                    -115 47.0     60 50.4
23 CA High Level                   -117  9.9     58 37.3
24 CA Holman Island                -117 48.3     70 45.8
25 CA Inuvik                       -133 29.0     68 18.3
26 CA Mayo                         -135 52.0     63 37.0
27 CA Nanisivik                    - 84 36.8     72 58.9
28 CA Norman Wells                 -126 48.0     65 17.0
29 CA Old Crow                     -139 50.4     67 34.2
30 CA Peace River                  -117 26.8     56 13.6
31 CA Pelly Bay                    - 89 48.5     68 32.1
32 CA Pond Inlet                   - 77 58.0     72 41.0
33 CA Port Hardy                   -127 22.0     50 40.8
34 CA Prince George                -122 40.7     53 53.4
35 CA Prince Pupert                -130 26.7     54 17.2
36 CA Quesnel                      -122 30.6     53  1.6
37 CA Repulse Bay                  - 86 13.5     66 31.3
38 CA Resolute                     - 94 58.2     74 43.0
39 CA Sachs Harbour                -125 14.6     71 59.6
40 CA Sandspit                     -131 48.8     53 15.3
41 CA Smithers                     -127 11.0     54 49.5
42 CA Spence Bay                   - 93 34.6     69 32.8
43 CA Terrace                      -128 34.7     54 28.0
44 CA Teslin                       -132 44.6     60 10.4
45 CA Tuktoyaktuk                  -133  1.6     69 26.0
46 CA Watson Lake                  -128 49.3     60  7.1
47 CA Whitehorse                   -135  4.1     60 42.6
48 CA Williams Lake                -122  3.3     52 11.0
49 CA Wrigley                      -123 26.2     63 12.6
50 CA Yellowknife                  -114 26.4     62 27.8
51 CN Hotan                          79 51.9     37  2.3
52 CN Kashi                          76  1.3     39 32.6
53 CN Urumqi                         87 28.5     43 54.4
54 FI Ivalo                          27 24.3     68 36.4
55 GL Jakobshavn                   - 51  4.0     69 14.0
56 GL Thule                        - 68 42.2     76 31.9
57 KG Bishkek                        74 28.7     43  3.7
58 KZ Alma-Ata                       77  2.4     43 21.1
59 KZ Balkhash                       75  0.3     46 53.7
60 KZ Dzhezkazgan                    67 44.0     47 42.5
61 KZ Kustanay                       63 33.0     53 12.4
62 KZ Semiplatinsk                   80 14.1     50 21.1
63 KZ Tselinograd                    71 28.0     51  1.3
64 NO Alta                           23 22.0     69 58.6
65 NO Banak                          24 58.4     70  4.1
66 NO Batsfjord                      29 41.6     70 36.0
67 NO Hasvik                         22  8.4     70 29.2
68 NO Kirkenes                       29 53.3     69 43.5
69 NO Sorkjosen                      20 57.6     69 47.2
70 NO Svalbard                       15 27.9     78 14.8
71 NO Svartnes                       31  2.7     70 21.3
72 RU Abakan                         91 23.1     53 44.4
73 RU Anadyr                        177 44.5     64 44.1
74 RU Barnaul                        83 32.5     53 21.8
75 RU Bratsk                        101 41.9     56 22.2
76 RU Chelyabinsk                    61 30.4     55 18.2
77 RU Irkutsk                       104 23.7     52 16.0
78 RU Kemorovo                       86  6.4     55 16.2
79 RU Kurgan                         65 24.9     55 28.5
80 RU Magadan                       150 43.0     59 54.6
81 RU Magnetiogorsk                  58 45.6     53 23.6
82 RU Murmansk                       32 45.0     68 46.9
83 RU Nizhnevartovsk                 76 28.0     60 57.0
84 RU Omsk                           73 18.6     54 58.0
85 RU Perm                           56  1.5     57 55.0
86 RU Pevek                         171  0.0     67 30.0
87 RU Polyarny                      112  3.0     66 25.0
88 RU Provideniya Bay               173 14.8     64 22.8
89 RU Salekhard                      66 36.6     66 35.4
90 RU Surgut                         73 30.0     61 15.0
91 RU Sverdlovsk                     60 48.2     56 44.5
92 RU Syktyvkar                      50 50.7     61 38.9
93 RU Ulan-Ude                      107 26.3     51 48.4
94 RU Yakutsk                       129 46.2     62  5.6
95 US Anchorage Ak                 -149 59.8     61 10.5
96 US Barter Island Ak             -143 34.6     70  8.0
97 US Chugiak Ak                   -149 54.0     61 13.1
98 US Clear Mews Ak                -149  7.2     64 18.1
99 US Deadhorse Ak                 -148 27.9     70 11.7
100 US Delta Junction Ak            -145 43.3     63 59.7
101 US Fairbanks Ak                 -147 51.4     64 48.9
102 US Fort Richardson Ak           -149 39.2     61 16.0
103 US Fort Yukon Ak                -145 15.0     66 34.3
104 US Juneau Ak                    -134 34.6     58 21.3
105 US Kodiak Ak                    -152 29.6     57 45.0
106 US Sitka Ak                     -135 21.7     57  2.8
107 US Skagway Ak                   -135 18.9     59 27.6





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