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Lunar Occultations

Total or grazing lunar occultations are among the events with the longest tradition in occultation astronomy.

For total lunar occultations as well as for grazing lunar occultations, the precise knowledge of the lunar limb is an absolute prerequisite. The MOONLIMB program does provide such precise data. An overview is given here.

Grazing Occultations of stars by the moon are local events and thus require an individual selection according to personal observation preferences. The GRAZPREP-software assists in all aspects of finding individually interesting events as well as selecting the best observing stations promising the most contacts between the star and the lunar limb in high resolution. If you are interested in these fascinating events, have a look here.

Members of IOTA get for their own observing stations predictions of lunar occultations, either total or grazing ones, specially calculated for their observatory and/or travel radius in case of mobile stations. Some bright total lunar occultations, as can be seen from a point in central Europe (Frankfurt a.M.) are given as follows:


Occultation prediction for Frankfurt, Germany

E. Longitude    8 39  0.0,  Latitude  50  8 30.0,  Alt.    0m;  Telescope dia 15cm;  dMag 0.0
   No messages for: Name, Doubles & K2 stars, Variables, Limb-nearby, Durations, Graze nearby

       day  Time     P   Star  Sp  Mag  Mag    % Elon Sun  Moon   CA   PA  VA  AA
 y   m  d  h  m   s       No  D     v    r V  ill     Alt Alt Az   o    o   o   o
21 Mar  5  4 43 25.3 d    2307 B1  3.9* 4.0   60- 101     19 181 -68N  79  79  70
21 Mar  5  5 47 22.3 R    2307 B1  3.9* 4.0   59- 101  -3 18 196  49N 322 311 313
21 Apr  4  6  4 22.6 D    2750SB2  2.1* 2.1   52-  92  10 13 188 -82N  77  71  84
21 Apr  4  7 19 45.4 R    2750SB2  2.1* 2.1   52-  92  22 10 205  81N 274 256 281
21 Apr 18 14 45 58.3 D    1030WA3  3.1  2.3s  34+  71  33 59 134  89S  94 125  89
21 Apr 18 16  9  3.7 R    1030WA3  3.1  2.3s  34+  72  21 65 173 -77S 261 266 255
21 Apr 19 18 15 38.3 D    1170dG8  3.6  3.1   45+  84   1 62 209  88N  97  78  86
21 Apr 19 19 34 29.2 R    1170dG8  3.6  3.1   45+  84 -11 53 238 -82N 288 251 277
21 Apr 30  1 59 21.6 d    2500cB2  3.3* 3.4v  87- 138     15 176 -76N  82  85  80
21 Apr 30  3  8 43.4 R    2500cB2  3.3* 3.4v  87- 138  -8 14 192  65N 301 292 299
21 May 15 22 39 59.1 D    1030WA3  3.1  2.3s  15+  45      1 309  21N  23 350  18
21 May 19 16 43 16.2 D    1484cA0  3.5  3.5s  49+  89  21 55 155  53N  74  91  53
21 May 19 17 40 58.2 r    1484cA0  3.5  3.5s  49+  89  12 57 179 -42N 339 340 318
21 May 28 22 35  7.0 R    2750SB2  2.1* 2.1   91- 145      2 137  31N 329 358 336
21 Jun 23 23 27 26.3 D    2500cB2  3.3* 3.4v  99+ 169     14 191  74N  68  60  65
21 Jun 24  0 28 35.6 r    2500cB2  3.3* 3.4v  99+ 169     11 205 -43N 310 293 308
21 Sep  2  0  3 49.0 d    1030WA3  3.1  2.3s  25-  60      7  59 -86S 100 137  94
21 Sep  2  0 56 21.1 R    1030WA3  3.1  2.3s  25-  59     15  68  62S 248 289 242
21 Sep  3  2 39 52.1 D    1170dG8  3.6  3.1   16-  47     21  77 -71S 122 166 111
21 Sep  3  3 32 17.4 R    1170dG8  3.6  3.1   16-  47 -12 30  87  44S 237 282 226
21 Oct  3  3 38 11.2 D    1484cA0  3.5  3.5s  13-  42     21  89 -39N  65 107  44
21 Oct  3  4 25  9.3 R    1484cA0  3.5  3.5s  13-  42 -11 29  98  56N 330  12 309
21 Oct  8 15 25 16.3 D    2118SA3  2.8  2.7s   7+  30  12 17 215  26S 170 147 154
21 Oct  8 16  4 13.6 r    2118SA3  2.8  2.7s   7+  30   6 13 224 -43S 239 212 224
21 Dec 24  4 49 35.0 D    1484cA0  3.5  3.5s  78- 124     52 216 -28N  45  22  24
21 Dec 24  5  9  3.9 R    1484cA0  3.5  3.5s  78- 124     50 223   2N  15 348 354



Explanations you find here.

Occultations of Planets by the Moon

The Moon regularly occults inner and outer planets. These occultations have no scientific value but show the dynamics of our Solar system impressively.

Upcoming Occultations in Europe in 2018 - 2023