Cicada spreadsheet

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"When the flowers bloom in spring 2004"		William Harkness

"…When the cicadas bloom in spring 2004" Sten Odenwald				odenwald@mail630.gsfc.nasa.gov

SO, how often do we get cicadas emerging during a transit of Venus?

Transit data from Fred Espenak's web page -			http://sunearth.gsfc.nasa.gov/eclipse/transit/catalog/VenusCatalog.html
and assuming cicada cycle = 17.000 years		(hey…they the little critters LOOK regular to me!)

				Running	Venus
		Calendar		Astro	Transit
Cicada	Running	Year		Year	Astro	Spring
Generation	Year				year	day
0	2004	2004	AD	2004	2004	8-Jun
1	1987	1987	AD	1987
2	1970	1970	AD	1970
3	1953	1953	AD	1953
4	1936	1936	AD	1936
5	1919	1919	AD	1919
6	1902	1902	AD	1902
7	1885	1885	AD	1885
8	1868	1868	AD	1868
9	1851	1851	AD	1851
10	1834	1834	AD	1834
11	1817	1817	AD	1817
12	1800	1800	AD	1800
13	1783	1783	AD	1783
14	1766	1766	AD	1766	1769	3-Jun	1761	6-Jun
15	1749	1749	AD	1749
16	1732	1732	AD	1732
17	1715	1715	AD	1715
18	1698	1698	AD	1698
19	1681	1681	AD	1681
20	1664	1664	AD	1664
21	1647	1647	AD	1647
22	1630	1630	AD	1630
23	1613	1613	AD	1613
24	1596	1596	AD	1596
25	1579	1579	AD	1579
26	1562	1562	AD	1562
27	1545	1545	AD	1545
28	1528	1528	AD	1528	1526	23-May	1518	26-May
29	1511	1511	AD	1511
30	1494	1494	AD	1494
31	1477	1477	AD	1477
32	1460	1460	AD	1460
33	1443	1443	AD	1443
34	1426	1426	AD	1426
35	1409	1409	AD	1409
36	1392	1392	AD	1392
37	1375	1375	AD	1375
38	1358	1358	AD	1358
39	1341	1341	AD	1341
40	1324	1324	AD	1324
41	1307	1307	AD	1307
42	1290	1290	AD	1290	1283	23-May
43	1273	1273	AD	1273	1275	25-May
44	1256	1256	AD	1256
45	1239	1239	AD	1239
46	1222	1222	AD	1222
47	1205	1205	AD	1205
48	1188	1188	AD	1188
49	1171	1171	AD	1171
50	1154	1154	AD	1154
51	1137	1137	AD	1137
52	1120	1120	AD	1120
53	1103	1103	AD	1103
54	1086	1086	AD	1086
55	1069	1069	AD	1069
56	1052	1052	AD	1052
57	1035	1035	AD	1035	1032	24-May	1040	22-May
58	1018	1018	AD	1018
59	1001	1001	AD	1001
60	984	984	AD	984
61	967	967	AD	967
62	950	950	AD	950
63	933	933	AD	933
64	916	916	AD	916
65	899	899	AD	899
66	882	882	AD	882
67	865	865	AD	865
68	848	848	AD	848
69	831	831	AD	831
70	814	814	AD	814
71	797	797	AD	797	797	22-May	789	24-May
72	780	780	AD	780
73	763	763	AD	763
74	746	746	AD	746
75	729	729	AD	729
76	712	712	AD	712
77	695	695	AD	695
78	678	678	AD	678
79	661	661	AD	661
80	644	644	AD	644
81	627	627	AD	627
82	610	610	AD	610
83	593	593	AD	593
84	576	576	AD	576
85	559	559	AD	559	554	22-May
86	542	542	AD	542	546	24-May
87	525	525	AD	525
88	508	508	AD	508
89	491	491	AD	491
90	474	474	AD	474
91	457	457	AD	457
92	440	440	AD	440
93	423	423	AD	423
94	406	406	AD	406
95	389	389	AD	389
96	372	372	AD	372
97	355	355	AD	355
98	338	338	AD	338
99	321	321	AD	321
100	304	304	AD	304
101	287	287	AD	287
102	270	270	AD	270
103	253	253	AD	253
104	236	236	AD	236
105	219	219	AD	219
106	202	202	AD	202
107	185	185	AD	185
108	168	168	AD	168
109	151	151	AD	151
110	134	134	AD	134
111	117	117	AD	117
112	100	100	AD	100
113	83	83	AD	83
114	66	66	AD	66	60	23-May
115	49	49	AD	49
116	32	32	AD	32
117	15	15	AD	15
118	-2	-3	BC	-2
119	-19	-20	BC	-19
120	-36	-37	BC	-36
121	-53	-54	BC	-53
122	-70	-71	BC	-70
123	-87	-88	BC	-87
124	-104	-105	BC	-104
125	-121	-122	BC	-121
126	-138	-139	BC	-138
127	-155	-156	BC	-155
128	-172	-173	BC	-172
129	-189	-190	BC	-189	-183	22-May
130	-206	-207	BC	-206
131	-223	-224	BC	-223
132	-240	-241	BC	-240
133	-257	-258	BC	-257
134	-274	-275	BC	-274
135	-291	-292	BC	-291
136	-308	-309	BC	-308
137	-325	-326	BC	-325
138	-342	-343	BC	-342
139	-359	-360	BC	-359
140	-376	-377	BC	-376
141	-393	-394	BC	-393
142	-410	-411	BC	-410
143	-427	-428	BC	-427	-426	22-May
144	-444	-445	BC	-444
145	-461	-462	BC	-461
146	-478	-479	BC	-478
147	-495	-496	BC	-495
148	-512	-513	BC	-512
149	-529	-530	BC	-529
150	-546	-547	BC	-546
151	-563	-564	BC	-563
152	-580	-581	BC	-580
153	-597	-598	BC	-597
154	-614	-615	BC	-614
155	-631	-632	BC	-631
156	-648	-649	BC	-648
157	-665	-666	BC	-665	-669	22-May
158	-682	-683	BC	-682
159	-699	-700	BC	-699
160	-716	-717	BC	-716
161	-733	-734	BC	-733
162	-750	-751	BC	-750
163	-767	-768	BC	-767
164	-784	-785	BC	-784
165	-801	-802	BC	-801
166	-818	-819	BC	-818
167	-835	-836	BC	-835
168	-852	-853	BC	-852
169	-869	-870	BC	-869
170	-886	-887	BC	-886
171	-903	-904	BC	-903	-912	21-May
172	-920	-921	BC	-920	-920	23-May
173	-937	-938	BC	-937
174	-954	-955	BC	-954
175	-971	-972	BC	-971
176	-988	-989	BC	-988
177	-1005	-1006	BC	-1005
178	-1022	-1023	BC	-1022
179	-1039	-1040	BC	-1039
180	-1056	-1057	BC	-1056
181	-1073	-1074	BC	-1073
182	-1090	-1091	BC	-1090
183	-1107	-1108	BC	-1107
184	-1124	-1125	BC	-1124
185	-1141	-1142	BC	-1141
186	-1158	-1159	BC	-1158	-1155	21-May	-1163	23-May
187	-1175	-1176	BC	-1175
188	-1192	-1193	BC	-1192
189	-1209	-1210	BC	-1209
190	-1226	-1227	BC	-1226
191	-1243	-1244	BC	-1243
192	-1260	-1261	BC	-1260
193	-1277	-1278	BC	-1277
194	-1294	-1295	BC	-1294
195	-1311	-1312	BC	-1311
196	-1328	-1329	BC	-1328
197	-1345	-1346	BC	-1345
198	-1362	-1363	BC	-1362
199	-1379	-1380	BC	-1379
200	-1396	-1397	BC	-1396	-1398	20-May
201	-1413	-1414	BC	-1413	-1406	23-May
202	-1430	-1431	BC	-1430
203	-1447	-1448	BC	-1447
204	-1464	-1465	BC	-1464
205	-1481	-1482	BC	-1481
206	-1498	-1499	BC	-1498
207	-1515	-1516	BC	-1515
208	-1532	-1533	BC	-1532
209	-1549	-1550	BC	-1549
210	-1566	-1567	BC	-1566
211	-1583	-1584	BC	-1583
212	-1600	-1601	BC	-1600
213	-1617	-1618	BC	-1617
214	-1634	-1635	BC	-1634	-1641	20-May
215	-1651	-1652	BC	-1651	-1649	23-May
216	-1668	-1669	BC	-1668
217	-1685	-1686	BC	-1685
218	-1702	-1703	BC	-1702
219	-1719	-1720	BC	-1719
220	-1736	-1737	BC	-1736
221	-1753	-1754	BC	-1753
222	-1770	-1771	BC	-1770
223	-1787	-1788	BC	-1787
224	-1804	-1805	BC	-1804
225	-1821	-1822	BC	-1821
226	-1838	-1839	BC	-1838
227	-1855	-1856	BC	-1855
228	-1872	-1873	BC	-1872
229	-1889	-1890	BC	-1889	-1884	19-May	-1892	21-May