Understanding >Astronomical calculations
2022.-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 9581 SAM. 1 32 9612 TUE. 1 60 9640 TUE. 2 2 9582 SUN. ---- 2 33 9613 WED. 2 61 9641 WED. 3 3 9583 MON. ---- 3 34 9614 THU. 5 ! 3 62 9642 THU. 9 ! 4 4 9584 TUE. 4 35 9615 FRI. 4 63 9643 FRI. 5 5 9585 WED. 5 36 9616 SAM. 5 64 9644 SAM. 6 6 9586 THU. 1 ! 6 37 9617 SUN. ---- 6 65 9645 SUN. ---- 7 7 9587 FRI. 7 38 9618 MON. ---- 7 66 9646 MON. ---- 8 8 9588 SAM. 8 39 9619 TUE. 8 67 9647 TUE. 9 9 9589 SUN. ---- 9 40 9620 WED. 9 68 9648 WED. 10 10 9590 MON. ---- 10 41 9621 THU. 6 ! 10 69 9649 THU. 10 ! 11 11 9591 TUE. 11 42 9622 FRI. 11 70 9650 FRI. 12 12 9592 WED. 12 43 9623 SAM. 12 71 9651 SAM. 13 13 9593 THU. 2 ! 13 44 9624 SUN. ---- 13 72 9652 SUN. ---- 14 14 9594 FRI. 14 45 9625 MON. ---- 14 73 9653 MON. ---- 15 15 9595 SAM. 15 46 9626 TUE. 15 74 9654 TUE. 16 16 9596 SUN. ---- 16 47 9627 WED. 16 75 9655 WED. 17 17 9597 MON. ---- 17 48 9628 THU. 7 ! 17 76 9656 THU. 11 ! 18 18 9598 TUE. 18 49 9629 FRI. 18 77 9657 FRI. 19 19 9599 WED. 19 50 9630 SAM. 19 78 9658 SAM. 20 20 9600 THU. 3 ! 20 51 9631 SUN. ---- 20 79 9659 SUN. ---- 21 21 9601 FRI. 21 52 9632 MON. ---- 21 80 9660 MON. ---- 22 22 9602 SAM. 22 53 9633 TUE. 22 81 9661 TUE. 23 23 9603 SUN. ---- 23 54 9634 WED. 23 82 9662 WED. 24 24 9604 MON. ---- 24 55 9635 THU. 8 ! 24 83 9663 THU. 12 ! 25 25 9605 TUE. 25 56 9636 FRI. 25 84 9664 FRI. 26 26 9606 WED. 26 57 9637 SAM. 26 85 9665 SAM. 27 27 9607 THU. 4 ! 27 58 9638 SUN. ---- 27 86 9666 SUN. ---- 28 28 9608 FRI. 28 59 9639 MON. ---- 28 87 9667 MON. ---- 29 29 9609 SAM. 29 88 9668 TUE. 30 30 9610 SUN. ---- 30 89 9669 WED. 31 31 9611 MON. ---- 31 90 9670 THU. 13 ! ------------------------------ ------------------------------ ------------------------------ 2022.-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 9671 FRI. 1 121 9701 SUN. ---- 1 152 9732 WED. 2 92 9672 SAM. 2 122 9702 MON. ---- 2 153 9733 THU. 22 ! 3 93 9673 SUN. ---- 3 123 9703 TUE. 3 154 9734 FRI. 4 94 9674 MON. ---- 4 124 9704 WED. 4 155 9735 SAM. 5 95 9675 TUE. 5 125 9705 THU. 18 ! 5 156 9736 SUN. ---- 6 96 9676 WED. 6 126 9706 FRI. 6 157 9737 MON. ---- 7 97 9677 THU. 14 ! 7 127 9707 SAM. 7 158 9738 TUE. 8 98 9678 FRI. 8 128 9708 SUN. ---- 8 159 9739 WED. 9 99 9679 SAM. 9 129 9709 MON. ---- 9 160 9740 THU. 23 ! 10 100 9680 SUN. ---- 10 130 9710 TUE. 10 161 9741 FRI. 11 101 9681 MON. ---- 11 131 9711 WED. 11 162 9742 SAM. 12 102 9682 TUE. 12 132 9712 THU. 19 ! 12 163 9743 SUN. ---- 13 103 9683 WED. 13 133 9713 FRI. 13 164 9744 MON. ---- 14 104 9684 THU. 15 ! 14 134 9714 SAM. 14 165 9745 TUE. 15 105 9685 FRI. 15 135 9715 SUN. ---- 15 166 9746 WED. 16 106 9686 SAM. 16 136 9716 MON. ---- 16 167 9747 THU. 24 ! 17 107 9687 SUN. ---- 17 137 9717 TUE. 17 168 9748 FRI. 18 108 9688 MON. ---- 18 138 9718 WED. 18 169 9749 SAM. 19 109 9689 TUE. 19 139 9719 THU. 20 ! 19 170 9750 SUN. ---- 20 110 9690 WED. 20 140 9720 FRI. 20 171 9751 MON. ---- 21 111 9691 THU. 16 ! 21 141 9721 SAM. 21 172 9752 TUE. 22 112 9692 FRI. 22 142 9722 SUN. ---- 22 173 9753 WED. 23 113 9693 SAM. 23 143 9723 MON. ---- 23 174 9754 THU. 25 ! 24 114 9694 SUN. ---- 24 144 9724 TUE. 24 175 9755 FRI. 25 115 9695 MON. ---- 25 145 9725 WED. 25 176 9756 SAM. 26 116 9696 TUE. 26 146 9726 THU. 21 ! 26 177 9757 SUN. ---- 27 117 9697 WED. 27 147 9727 FRI. 27 178 9758 MON. ---- 28 118 9698 THU. 17 ! 28 148 9728 SAM. 28 179 9759 TUE. 29 119 9699 FRI. 29 149 9729 SUN. ---- 29 180 9760 WED. 30 120 9700 SAM. 30 150 9730 MON. ---- 30 181 9761 THU. 26 ! 31 151 9731 TUE. ------------------------------ ------------------------------ ------------------------------ 2022.-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 9762 FRI. 1 213 9793 MON. ---- 1 244 9824 THU. 35 ! 2 183 9763 SAM. 2 214 9794 TUE. 2 245 9825 FRI. 3 184 9764 SUN. ---- 3 215 9795 WED. 3 246 9826 SAM. 4 185 9765 MON. ---- 4 216 9796 THU. 31 ! 4 247 9827 SUN. ---- 5 186 9766 TUE. 5 217 9797 FRI. 5 248 9828 MON. ---- 6 187 9767 WED. 6 218 9798 SAM. 6 249 9829 TUE. 7 188 9768 THU. 27 ! 7 219 9799 SUN. ---- 7 250 9830 WED. 8 189 9769 FRI. 8 220 9800 MON. ---- 8 251 9831 THU. 36 ! 9 190 9770 SAM. 9 221 9801 TUE. 9 252 9832 FRI. 10 191 9771 SUN. ---- 10 222 9802 WED. 10 253 9833 SAM. 11 192 9772 MON. ---- 11 223 9803 THU. 32 ! 11 254 9834 SUN. ---- 12 193 9773 TUE. 12 224 9804 FRI. 12 255 9835 MON. ---- 13 194 9774 WED. 13 225 9805 SAM. 13 256 9836 TUE. 14 195 9775 THU. 28 ! 14 226 9806 SUN. ---- 14 257 9837 WED. 15 196 9776 FRI. 15 227 9807 MON. ---- 15 258 9838 THU. 37 ! 16 197 9777 SAM. 16 228 9808 TUE. 16 259 9839 FRI. 17 198 9778 SUN. ---- 17 229 9809 WED. 17 260 9840 SAM. 18 199 9779 MON. ---- 18 230 9810 THU. 33 ! 18 261 9841 SUN. ---- 19 200 9780 TUE. 19 231 9811 FRI. 19 262 9842 MON. ---- 20 201 9781 WED. 20 232 9812 SAM. 20 263 9843 TUE. 21 202 9782 THU. 29 ! 21 233 9813 SUN. ---- 21 264 9844 WED. 22 203 9783 FRI. 22 234 9814 MON. ---- 22 265 9845 THU. 38 ! 23 204 9784 SAM. 23 235 9815 TUE. 23 266 9846 FRI. 24 205 9785 SUN. ---- 24 236 9816 WED. 24 267 9847 SAM. 25 206 9786 MON. ---- 25 237 9817 THU. 34 ! 25 268 9848 SUN. ---- 26 207 9787 TUE. 26 238 9818 FRI. 26 269 9849 MON. ---- 27 208 9788 WED. 27 239 9819 SAM. 27 270 9850 TUE. 28 209 9789 THU. 30 ! 28 240 9820 SUN. ---- 28 271 9851 WED. 29 210 9790 FRI. 29 241 9821 MON. ---- 29 272 9852 THU. 39 ! 30 211 9791 SAM. 30 242 9822 TUE. 30 273 9853 FRI. 31 212 9792 SUN. ---- 31 243 9823 WED. ------------------------------ ------------------------------ ------------------------------ 2022.-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 9854 SAM. 1 305 9885 TUE. 1 335 9915 THU. 48 ! 2 275 9855 SUN. ---- 2 306 9886 WED. 2 336 9916 FRI. 3 276 9856 MON. ---- 3 307 9887 THU. 44 ! 3 337 9917 SAM. 4 277 9857 TUE. 4 308 9888 FRI. 4 338 9918 SUN. ---- 5 278 9858 WED. 5 309 9889 SAM. 5 339 9919 MON. ---- 6 279 9859 THU. 40 ! 6 310 9890 SUN. ---- 6 340 9920 TUE. 7 280 9860 FRI. 7 311 9891 MON. ---- 7 341 9921 WED. 8 281 9861 SAM. 8 312 9892 TUE. 8 342 9922 THU. 49 ! 9 282 9862 SUN. ---- 9 313 9893 WED. 9 343 9923 FRI. 10 283 9863 MON. ---- 10 314 9894 THU. 45 ! 10 344 9924 SAM. 11 284 9864 TUE. 11 315 9895 FRI. 11 345 9925 SUN. ---- 12 285 9865 WED. 12 316 9896 SAM. 12 346 9926 MON. ---- 13 286 9866 THU. 41 ! 13 317 9897 SUN. ---- 13 347 9927 TUE. 14 287 9867 FRI. 14 318 9898 MON. ---- 14 348 9928 WED. 15 288 9868 SAM. 15 319 9899 TUE. 15 349 9929 THU. 50 ! 16 289 9869 SUN. ---- 16 320 9900 WED. 16 350 9930 FRI. 17 290 9870 MON. ---- 17 321 9901 THU. 46 ! 17 351 9931 SAM. 18 291 9871 TUE. 18 322 9902 FRI. 18 352 9932 SUN. ---- 19 292 9872 WED. 19 323 9903 SAM. 19 353 9933 MON. ---- 20 293 9873 THU. 42 ! 20 324 9904 SUN. ---- 20 354 9934 TUE. 21 294 9874 FRI. 21 325 9905 MON. ---- 21 355 9935 WED. 22 295 9875 SAM. 22 326 9906 TUE. 22 356 9936 THU. 51 ! 23 296 9876 SUN. ---- 23 327 9907 WED. 23 357 9937 FRI. 24 297 9877 MON. ---- 24 328 9908 THU. 47 ! 24 358 9938 SAM. 25 298 9878 TUE. 25 329 9909 FRI. 25 359 9939 SUN. ---- 26 299 9879 WED. 26 330 9910 SAM. 26 360 9940 MON. ---- 27 300 9880 THU. 43 ! 27 331 9911 SUN. ---- 27 361 9941 TUE. 28 301 9881 FRI. 28 332 9912 MON. ---- 28 362 9942 WED. 29 302 9882 SAM. 29 333 9913 TUE. 29 363 9943 THU. 52 ! 30 303 9883 SUN. ---- 30 334 9914 WED. 30 364 9944 FRI. 31 304 9884 MON. ---- 31 365 9945 SAM. ---------------------------------------------------------------------------------------------------