Understanding >Astronomical calculations
2017.-CALENDAR-. JANUARY FEBRUARY MARCH ------------------------------ ------------------------------ ------------------------------ DAY DAY & NO DAY DAY & NO DAY DAY & NO ------------------- --------- ------------------- --------- ------------------- --------- OF OF THE JULIAN OF THE OF OF THE JULIAN OF THE OF OF THE JULIAN OF THE MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK AT 12H UTC AT 12H UTC AT 12H UTC ------------------- --------- ------------------- --------- ------------------- --------- 245 245 245 1 1 7755 SUN. ---- 1 32 7786 WED. 1 60 7814 WED. 2 2 7756 MON. ---- 2 33 7787 THU. 5 ! 2 61 7815 THU. 9 ! 3 3 7757 TUE. 3 34 7788 FRI. 3 62 7816 FRI. 4 4 7758 WED. 4 35 7789 SAM. 4 63 7817 SAM. 5 5 7759 THU. 1 ! 5 36 7790 SUN. ---- 5 64 7818 SUN. ---- 6 6 7760 FRI. 6 37 7791 MON. ---- 6 65 7819 MON. ---- 7 7 7761 SAM. 7 38 7792 TUE. 7 66 7820 TUE. 8 8 7762 SUN. ---- 8 39 7793 WED. 8 67 7821 WED. 9 9 7763 MON. ---- 9 40 7794 THU. 6 ! 9 68 7822 THU. 10 ! 10 10 7764 TUE. 10 41 7795 FRI. 10 69 7823 FRI. 11 11 7765 WED. 11 42 7796 SAM. 11 70 7824 SAM. 12 12 7766 THU. 2 ! 12 43 7797 SUN. ---- 12 71 7825 SUN. ---- 13 13 7767 FRI. 13 44 7798 MON. ---- 13 72 7826 MON. ---- 14 14 7768 SAM. 14 45 7799 TUE. 14 73 7827 TUE. 15 15 7769 SUN. ---- 15 46 7800 WED. 15 74 7828 WED. 16 16 7770 MON. ---- 16 47 7801 THU. 7 ! 16 75 7829 THU. 11 ! 17 17 7771 TUE. 17 48 7802 FRI. 17 76 7830 FRI. 18 18 7772 WED. 18 49 7803 SAM. 18 77 7831 SAM. 19 19 7773 THU. 3 ! 19 50 7804 SUN. ---- 19 78 7832 SUN. ---- 20 20 7774 FRI. 20 51 7805 MON. ---- 20 79 7833 MON. ---- 21 21 7775 SAM. 21 52 7806 TUE. 21 80 7834 TUE. 22 22 7776 SUN. ---- 22 53 7807 WED. 22 81 7835 WED. 23 23 7777 MON. ---- 23 54 7808 THU. 8 ! 23 82 7836 THU. 12 ! 24 24 7778 TUE. 24 55 7809 FRI. 24 83 7837 FRI. 25 25 7779 WED. 25 56 7810 SAM. 25 84 7838 SAM. 26 26 7780 THU. 4 ! 26 57 7811 SUN. ---- 26 85 7839 SUN. ---- 27 27 7781 FRI. 27 58 7812 MON. ---- 27 86 7840 MON. ---- 28 28 7782 SAM. 28 59 7813 TUE. 28 87 7841 TUE. 29 29 7783 SUN. ---- 29 88 7842 WED. 30 30 7784 MON. ---- 30 89 7843 THU. 13 ! 31 31 7785 TUE. 31 90 7844 FRI. ------------------------------ ------------------------------ ------------------------------ 2017.-CALENDAR-. APRIL MAY JUNE ------------------------------ ------------------------------ ------------------------------ DAY DAY & NO DAY DAY & NO DAY DAY & NO ------------------- --------- ------------------- --------- ------------------- --------- OF OF THE JULIAN OF THE OF OF THE JULIAN OF THE OF OF THE JULIAN OF THE MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK AT 12H UTC AT 12H UTC AT 12H UTC ------------------- --------- ------------------- --------- ------------------- --------- 245 245 245 1 91 7845 SAM. 1 121 7875 MON. ---- 1 152 7906 THU. 22 ! 2 92 7846 SUN. ---- 2 122 7876 TUE. 2 153 7907 FRI. 3 93 7847 MON. ---- 3 123 7877 WED. 3 154 7908 SAM. 4 94 7848 TUE. 4 124 7878 THU. 18 ! 4 155 7909 SUN. ---- 5 95 7849 WED. 5 125 7879 FRI. 5 156 7910 MON. ---- 6 96 7850 THU. 14 ! 6 126 7880 SAM. 6 157 7911 TUE. 7 97 7851 FRI. 7 127 7881 SUN. ---- 7 158 7912 WED. 8 98 7852 SAM. 8 128 7882 MON. ---- 8 159 7913 THU. 23 ! 9 99 7853 SUN. ---- 9 129 7883 TUE. 9 160 7914 FRI. 10 100 7854 MON. ---- 10 130 7884 WED. 10 161 7915 SAM. 11 101 7855 TUE. 11 131 7885 THU. 19 ! 11 162 7916 SUN. ---- 12 102 7856 WED. 12 132 7886 FRI. 12 163 7917 MON. ---- 13 103 7857 THU. 15 ! 13 133 7887 SAM. 13 164 7918 TUE. 14 104 7858 FRI. 14 134 7888 SUN. ---- 14 165 7919 WED. 15 105 7859 SAM. 15 135 7889 MON. ---- 15 166 7920 THU. 24 ! 16 106 7860 SUN. ---- 16 136 7890 TUE. 16 167 7921 FRI. 17 107 7861 MON. ---- 17 137 7891 WED. 17 168 7922 SAM. 18 108 7862 TUE. 18 138 7892 THU. 20 ! 18 169 7923 SUN. ---- 19 109 7863 WED. 19 139 7893 FRI. 19 170 7924 MON. ---- 20 110 7864 THU. 16 ! 20 140 7894 SAM. 20 171 7925 TUE. 21 111 7865 FRI. 21 141 7895 SUN. ---- 21 172 7926 WED. 22 112 7866 SAM. 22 142 7896 MON. ---- 22 173 7927 THU. 25 ! 23 113 7867 SUN. ---- 23 143 7897 TUE. 23 174 7928 FRI. 24 114 7868 MON. ---- 24 144 7898 WED. 24 175 7929 SAM. 25 115 7869 TUE. 25 145 7899 THU. 21 ! 25 176 7930 SUN. ---- 26 116 7870 WED. 26 146 7900 FRI. 26 177 7931 MON. ---- 27 117 7871 THU. 17 ! 27 147 7901 SAM. 27 178 7932 TUE. 28 118 7872 FRI. 28 148 7902 SUN. ---- 28 179 7933 WED. 29 119 7873 SAM. 29 149 7903 MON. ---- 29 180 7934 THU. 26 ! 30 120 7874 SUN. ---- 30 150 7904 TUE. 30 181 7935 FRI. 31 151 7905 WED. ------------------------------ ------------------------------ ------------------------------ 2017.-CALENDAR-. JULY AUGUST SEPTEMBER ------------------------------ ------------------------------ ------------------------------ DAY DAY & NO DAY DAY & NO DAY DAY & NO ------------------- --------- ------------------- --------- ------------------- --------- OF OF THE JULIAN OF THE OF OF THE JULIAN OF THE OF OF THE JULIAN OF THE MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK AT 12H UTC AT 12H UTC AT 12H UTC ------------------- --------- ------------------- --------- ------------------- --------- 245 245 245 1 182 7936 SAM. 1 213 7967 TUE. 1 244 7998 FRI. 2 183 7937 SUN. ---- 2 214 7968 WED. 2 245 7999 SAM. 3 184 7938 MON. ---- 3 215 7969 THU. 31 ! 3 246 8000 SUN. ---- 4 185 7939 TUE. 4 216 7970 FRI. 4 247 8001 MON. ---- 5 186 7940 WED. 5 217 7971 SAM. 5 248 8002 TUE. 6 187 7941 THU. 27 ! 6 218 7972 SUN. ---- 6 249 8003 WED. 7 188 7942 FRI. 7 219 7973 MON. ---- 7 250 8004 THU. 36 ! 8 189 7943 SAM. 8 220 7974 TUE. 8 251 8005 FRI. 9 190 7944 SUN. ---- 9 221 7975 WED. 9 252 8006 SAM. 10 191 7945 MON. ---- 10 222 7976 THU. 32 ! 10 253 8007 SUN. ---- 11 192 7946 TUE. 11 223 7977 FRI. 11 254 8008 MON. ---- 12 193 7947 WED. 12 224 7978 SAM. 12 255 8009 TUE. 13 194 7948 THU. 28 ! 13 225 7979 SUN. ---- 13 256 8010 WED. 14 195 7949 FRI. 14 226 7980 MON. ---- 14 257 8011 THU. 37 ! 15 196 7950 SAM. 15 227 7981 TUE. 15 258 8012 FRI. 16 197 7951 SUN. ---- 16 228 7982 WED. 16 259 8013 SAM. 17 198 7952 MON. ---- 17 229 7983 THU. 33 ! 17 260 8014 SUN. ---- 18 199 7953 TUE. 18 230 7984 FRI. 18 261 8015 MON. ---- 19 200 7954 WED. 19 231 7985 SAM. 19 262 8016 TUE. 20 201 7955 THU. 29 ! 20 232 7986 SUN. ---- 20 263 8017 WED. 21 202 7956 FRI. 21 233 7987 MON. ---- 21 264 8018 THU. 38 ! 22 203 7957 SAM. 22 234 7988 TUE. 22 265 8019 FRI. 23 204 7958 SUN. ---- 23 235 7989 WED. 23 266 8020 SAM. 24 205 7959 MON. ---- 24 236 7990 THU. 34 ! 24 267 8021 SUN. ---- 25 206 7960 TUE. 25 237 7991 FRI. 25 268 8022 MON. ---- 26 207 7961 WED. 26 238 7992 SAM. 26 269 8023 TUE. 27 208 7962 THU. 30 ! 27 239 7993 SUN. ---- 27 270 8024 WED. 28 209 7963 FRI. 28 240 7994 MON. ---- 28 271 8025 THU. 39 ! 29 210 7964 SAM. 29 241 7995 TUE. 29 272 8026 FRI. 30 211 7965 SUN. ---- 30 242 7996 WED. 30 273 8027 SAM. 31 212 7966 MON. ---- 31 243 7997 THU. 35 ! ------------------------------ ------------------------------ ------------------------------ 2017.-CALENDAR-. OCTOBER NOVEMBER DECEMBER ------------------------------ ------------------------------ ------------------------------ DAY DAY & NO DAY DAY & NO DAY DAY & NO ------------------- --------- ------------------- --------- ------------------- --------- OF OF THE JULIAN OF THE OF OF THE JULIAN OF THE OF OF THE JULIAN OF THE MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK AT 12H UTC AT 12H UTC AT 12H UTC ------------------- --------- ------------------- --------- ------------------- --------- 245 245 245 1 274 8028 SUN. ---- 1 305 8059 WED. 1 335 8089 FRI. 2 275 8029 MON. ---- 2 306 8060 THU. 44 ! 2 336 8090 SAM. 3 276 8030 TUE. 3 307 8061 FRI. 3 337 8091 SUN. ---- 4 277 8031 WED. 4 308 8062 SAM. 4 338 8092 MON. ---- 5 278 8032 THU. 40 ! 5 309 8063 SUN. ---- 5 339 8093 TUE. 6 279 8033 FRI. 6 310 8064 MON. ---- 6 340 8094 WED. 7 280 8034 SAM. 7 311 8065 TUE. 7 341 8095 THU. 49 ! 8 281 8035 SUN. ---- 8 312 8066 WED. 8 342 8096 FRI. 9 282 8036 MON. ---- 9 313 8067 THU. 45 ! 9 343 8097 SAM. 10 283 8037 TUE. 10 314 8068 FRI. 10 344 8098 SUN. ---- 11 284 8038 WED. 11 315 8069 SAM. 11 345 8099 MON. ---- 12 285 8039 THU. 41 ! 12 316 8070 SUN. ---- 12 346 8100 TUE. 13 286 8040 FRI. 13 317 8071 MON. ---- 13 347 8101 WED. 14 287 8041 SAM. 14 318 8072 TUE. 14 348 8102 THU. 50 ! 15 288 8042 SUN. ---- 15 319 8073 WED. 15 349 8103 FRI. 16 289 8043 MON. ---- 16 320 8074 THU. 46 ! 16 350 8104 SAM. 17 290 8044 TUE. 17 321 8075 FRI. 17 351 8105 SUN. ---- 18 291 8045 WED. 18 322 8076 SAM. 18 352 8106 MON. ---- 19 292 8046 THU. 42 ! 19 323 8077 SUN. ---- 19 353 8107 TUE. 20 293 8047 FRI. 20 324 8078 MON. ---- 20 354 8108 WED. 21 294 8048 SAM. 21 325 8079 TUE. 21 355 8109 THU. 51 ! 22 295 8049 SUN. ---- 22 326 8080 WED. 22 356 8110 FRI. 23 296 8050 MON. ---- 23 327 8081 THU. 47 ! 23 357 8111 SAM. 24 297 8051 TUE. 24 328 8082 FRI. 24 358 8112 SUN. ---- 25 298 8052 WED. 25 329 8083 SAM. 25 359 8113 MON. ---- 26 299 8053 THU. 43 ! 26 330 8084 SUN. ---- 26 360 8114 TUE. 27 300 8054 FRI. 27 331 8085 MON. ---- 27 361 8115 WED. 28 301 8055 SAM. 28 332 8086 TUE. 28 362 8116 THU. 52 ! 29 302 8056 SUN. ---- 29 333 8087 WED. 29 363 8117 FRI. 30 303 8057 MON. ---- 30 334 8088 THU. 48 ! 30 364 8118 SAM. 31 304 8058 TUE. 31 365 8119 SUN. ---- ------------------------------ ------------------------------ ------------------------------
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