Understanding >Astronomical calculations
2015.-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 7024 THU. 1 ! 1 32 7055 SUN. ---- 1 60 7083 SUN. ---- 2 2 7025 FRI. 2 33 7056 MON. ---- 2 61 7084 MON. ---- 3 3 7026 SAM. 3 34 7057 TUE. 3 62 7085 TUE. 4 4 7027 SUN. ---- 4 35 7058 WED. 4 63 7086 WED. 5 5 7028 MON. ---- 5 36 7059 THU. 6 ! 5 64 7087 THU. 10 ! 6 6 7029 TUE. 6 37 7060 FRI. 6 65 7088 FRI. 7 7 7030 WED. 7 38 7061 SAM. 7 66 7089 SAM. 8 8 7031 THU. 2 ! 8 39 7062 SUN. ---- 8 67 7090 SUN. ---- 9 9 7032 FRI. 9 40 7063 MON. ---- 9 68 7091 MON. ---- 10 10 7033 SAM. 10 41 7064 TUE. 10 69 7092 TUE. 11 11 7034 SUN. ---- 11 42 7065 WED. 11 70 7093 WED. 12 12 7035 MON. ---- 12 43 7066 THU. 7 ! 12 71 7094 THU. 11 ! 13 13 7036 TUE. 13 44 7067 FRI. 13 72 7095 FRI. 14 14 7037 WED. 14 45 7068 SAM. 14 73 7096 SAM. 15 15 7038 THU. 3 ! 15 46 7069 SUN. ---- 15 74 7097 SUN. ---- 16 16 7039 FRI. 16 47 7070 MON. ---- 16 75 7098 MON. ---- 17 17 7040 SAM. 17 48 7071 TUE. 17 76 7099 TUE. 18 18 7041 SUN. ---- 18 49 7072 WED. 18 77 7100 WED. 19 19 7042 MON. ---- 19 50 7073 THU. 8 ! 19 78 7101 THU. 12 ! 20 20 7043 TUE. 20 51 7074 FRI. 20 79 7102 FRI. 21 21 7044 WED. 21 52 7075 SAM. 21 80 7103 SAM. 22 22 7045 THU. 4 ! 22 53 7076 SUN. ---- 22 81 7104 SUN. ---- 23 23 7046 FRI. 23 54 7077 MON. ---- 23 82 7105 MON. ---- 24 24 7047 SAM. 24 55 7078 TUE. 24 83 7106 TUE. 25 25 7048 SUN. ---- 25 56 7079 WED. 25 84 7107 WED. 26 26 7049 MON. ---- 26 57 7080 THU. 9 ! 26 85 7108 THU. 13 ! 27 27 7050 TUE. 27 58 7081 FRI. 27 86 7109 FRI. 28 28 7051 WED. 28 59 7082 SAM. 28 87 7110 SAM. 29 29 7052 THU. 5 ! 29 88 7111 SUN. ---- 30 30 7053 FRI. 30 89 7112 MON. ---- 31 31 7054 SAM. 31 90 7113 TUE. ------------------------------ ------------------------------ ------------------------------ 2015.-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 7114 WED. 1 121 7144 FRI. 1 152 7175 MON. ---- 2 92 7115 THU. 14 ! 2 122 7145 SAM. 2 153 7176 TUE. 3 93 7116 FRI. 3 123 7146 SUN. ---- 3 154 7177 WED. 4 94 7117 SAM. 4 124 7147 MON. ---- 4 155 7178 THU. 23 ! 5 95 7118 SUN. ---- 5 125 7148 TUE. 5 156 7179 FRI. 6 96 7119 MON. ---- 6 126 7149 WED. 6 157 7180 SAM. 7 97 7120 TUE. 7 127 7150 THU. 19 ! 7 158 7181 SUN. ---- 8 98 7121 WED. 8 128 7151 FRI. 8 159 7182 MON. ---- 9 99 7122 THU. 15 ! 9 129 7152 SAM. 9 160 7183 TUE. 10 100 7123 FRI. 10 130 7153 SUN. ---- 10 161 7184 WED. 11 101 7124 SAM. 11 131 7154 MON. ---- 11 162 7185 THU. 24 ! 12 102 7125 SUN. ---- 12 132 7155 TUE. 12 163 7186 FRI. 13 103 7126 MON. ---- 13 133 7156 WED. 13 164 7187 SAM. 14 104 7127 TUE. 14 134 7157 THU. 20 ! 14 165 7188 SUN. ---- 15 105 7128 WED. 15 135 7158 FRI. 15 166 7189 MON. ---- 16 106 7129 THU. 16 ! 16 136 7159 SAM. 16 167 7190 TUE. 17 107 7130 FRI. 17 137 7160 SUN. ---- 17 168 7191 WED. 18 108 7131 SAM. 18 138 7161 MON. ---- 18 169 7192 THU. 25 ! 19 109 7132 SUN. ---- 19 139 7162 TUE. 19 170 7193 FRI. 20 110 7133 MON. ---- 20 140 7163 WED. 20 171 7194 SAM. 21 111 7134 TUE. 21 141 7164 THU. 21 ! 21 172 7195 SUN. ---- 22 112 7135 WED. 22 142 7165 FRI. 22 173 7196 MON. ---- 23 113 7136 THU. 17 ! 23 143 7166 SAM. 23 174 7197 TUE. 24 114 7137 FRI. 24 144 7167 SUN. ---- 24 175 7198 WED. 25 115 7138 SAM. 25 145 7168 MON. ---- 25 176 7199 THU. 26 ! 26 116 7139 SUN. ---- 26 146 7169 TUE. 26 177 7200 FRI. 27 117 7140 MON. ---- 27 147 7170 WED. 27 178 7201 SAM. 28 118 7141 TUE. 28 148 7171 THU. 22 ! 28 179 7202 SUN. ---- 29 119 7142 WED. 29 149 7172 FRI. 29 180 7203 MON. ---- 30 120 7143 THU. 18 ! 30 150 7173 SAM. 30 181 7204 TUE. 31 151 7174 SUN. ---- ------------------------------ ------------------------------ ------------------------------ 2015.-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 7205 WED. 1 213 7236 SAM. 1 244 7267 TUE. 2 183 7206 THU. 27 ! 2 214 7237 SUN. ---- 2 245 7268 WED. 3 184 7207 FRI. 3 215 7238 MON. ---- 3 246 7269 THU. 36 ! 4 185 7208 SAM. 4 216 7239 TUE. 4 247 7270 FRI. 5 186 7209 SUN. ---- 5 217 7240 WED. 5 248 7271 SAM. 6 187 7210 MON. ---- 6 218 7241 THU. 32 ! 6 249 7272 SUN. ---- 7 188 7211 TUE. 7 219 7242 FRI. 7 250 7273 MON. ---- 8 189 7212 WED. 8 220 7243 SAM. 8 251 7274 TUE. 9 190 7213 THU. 28 ! 9 221 7244 SUN. ---- 9 252 7275 WED. 10 191 7214 FRI. 10 222 7245 MON. ---- 10 253 7276 THU. 37 ! 11 192 7215 SAM. 11 223 7246 TUE. 11 254 7277 FRI. 12 193 7216 SUN. ---- 12 224 7247 WED. 12 255 7278 SAM. 13 194 7217 MON. ---- 13 225 7248 THU. 33 ! 13 256 7279 SUN. ---- 14 195 7218 TUE. 14 226 7249 FRI. 14 257 7280 MON. ---- 15 196 7219 WED. 15 227 7250 SAM. 15 258 7281 TUE. 16 197 7220 THU. 29 ! 16 228 7251 SUN. ---- 16 259 7282 WED. 17 198 7221 FRI. 17 229 7252 MON. ---- 17 260 7283 THU. 38 ! 18 199 7222 SAM. 18 230 7253 TUE. 18 261 7284 FRI. 19 200 7223 SUN. ---- 19 231 7254 WED. 19 262 7285 SAM. 20 201 7224 MON. ---- 20 232 7255 THU. 34 ! 20 263 7286 SUN. ---- 21 202 7225 TUE. 21 233 7256 FRI. 21 264 7287 MON. ---- 22 203 7226 WED. 22 234 7257 SAM. 22 265 7288 TUE. 23 204 7227 THU. 30 ! 23 235 7258 SUN. ---- 23 266 7289 WED. 24 205 7228 FRI. 24 236 7259 MON. ---- 24 267 7290 THU. 39 ! 25 206 7229 SAM. 25 237 7260 TUE. 25 268 7291 FRI. 26 207 7230 SUN. ---- 26 238 7261 WED. 26 269 7292 SAM. 27 208 7231 MON. ---- 27 239 7262 THU. 35 ! 27 270 7293 SUN. ---- 28 209 7232 TUE. 28 240 7263 FRI. 28 271 7294 MON. ---- 29 210 7233 WED. 29 241 7264 SAM. 29 272 7295 TUE. 30 211 7234 THU. 31 ! 30 242 7265 SUN. ---- 30 273 7296 WED. 31 212 7235 FRI. 31 243 7266 MON. ---- ------------------------------ ------------------------------ ------------------------------ 2015.-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 7297 THU. 40 ! 1 305 7328 SUN. ---- 1 335 7358 TUE. 2 275 7298 FRI. 2 306 7329 MON. ---- 2 336 7359 WED. 3 276 7299 SAM. 3 307 7330 TUE. 3 337 7360 THU. 49 ! 4 277 7300 SUN. ---- 4 308 7331 WED. 4 338 7361 FRI. 5 278 7301 MON. ---- 5 309 7332 THU. 45 ! 5 339 7362 SAM. 6 279 7302 TUE. 6 310 7333 FRI. 6 340 7363 SUN. ---- 7 280 7303 WED. 7 311 7334 SAM. 7 341 7364 MON. ---- 8 281 7304 THU. 41 ! 8 312 7335 SUN. ---- 8 342 7365 TUE. 9 282 7305 FRI. 9 313 7336 MON. ---- 9 343 7366 WED. 10 283 7306 SAM. 10 314 7337 TUE. 10 344 7367 THU. 50 ! 11 284 7307 SUN. ---- 11 315 7338 WED. 11 345 7368 FRI. 12 285 7308 MON. ---- 12 316 7339 THU. 46 ! 12 346 7369 SAM. 13 286 7309 TUE. 13 317 7340 FRI. 13 347 7370 SUN. ---- 14 287 7310 WED. 14 318 7341 SAM. 14 348 7371 MON. ---- 15 288 7311 THU. 42 ! 15 319 7342 SUN. ---- 15 349 7372 TUE. 16 289 7312 FRI. 16 320 7343 MON. ---- 16 350 7373 WED. 17 290 7313 SAM. 17 321 7344 TUE. 17 351 7374 THU. 51 ! 18 291 7314 SUN. ---- 18 322 7345 WED. 18 352 7375 FRI. 19 292 7315 MON. ---- 19 323 7346 THU. 47 ! 19 353 7376 SAM. 20 293 7316 TUE. 20 324 7347 FRI. 20 354 7377 SUN. ---- 21 294 7317 WED. 21 325 7348 SAM. 21 355 7378 MON. ---- 22 295 7318 THU. 43 ! 22 326 7349 SUN. ---- 22 356 7379 TUE. 23 296 7319 FRI. 23 327 7350 MON. ---- 23 357 7380 WED. 24 297 7320 SAM. 24 328 7351 TUE. 24 358 7381 THU. 52 ! 25 298 7321 SUN. ---- 25 329 7352 WED. 25 359 7382 FRI. 26 299 7322 MON. ---- 26 330 7353 THU. 48 ! 26 360 7383 SAM. 27 300 7323 TUE. 27 331 7354 FRI. 27 361 7384 SUN. ---- 28 301 7324 WED. 28 332 7355 SAM. 28 362 7385 MON. ---- 29 302 7325 THU. 44 ! 29 333 7356 SUN. ---- 29 363 7386 TUE. 30 303 7326 FRI. 30 334 7357 MON. ---- 30 364 7387 WED. 31 304 7327 SAM. 31 365 7388 THU. 53 ! ------------------------------ ------------------------------ ------------------------------
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