Understanding >Astronomical calculations
2030.-CALENDAR-. JANUARY FEBRUARY MARCH ------------------------------ ------------------------------ ------------------------------ DAY DAY & NO DAY DAY & NO DAY DAY & NO ------------------- --------- ------------------- --------- ------------------- --------- OF OF THE JULIAN OF THE OF OF THE JULIAN DE la OF OF THE JULIAN OF THE MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK MONTH YEAR ECOULE WEEK A 12H TU A 12H TU A 12H TU ------------------- --------- ------------------- --------- ------------------- --------- 246 246 246 1 1 2503 TUE. 1 32 2534 FRI. 1 60 2562 FRI. 2 2 2504 WED. 2 33 2535 SAT. 2 61 2563 SAT. 3 3 2505 THU. 1 ! 3 34 2536 SUN. ---- 3 62 2564 SUN. ---- 4 4 2506 FRI. 4 35 2537 MON. ---- 4 63 2565 MON. ---- 5 5 2507 SAT. 5 36 2538 TUE. 5 64 2566 TUE. 6 6 2508 SUN. ---- 6 37 2539 WED. 6 65 2567 WED. 7 7 2509 MON. ---- 7 38 2540 THU. 6 ! 7 66 2568 THU. 10 ! 8 8 2510 TUE. 8 39 2541 FRI. 8 67 2569 FRI. 9 9 2511 WED. 9 40 2542 SAT. 9 68 2570 SAT. 10 10 2512 THU. 2 ! 10 41 2543 SUN. ---- 10 69 2571 SUN. ---- 11 11 2513 FRI. 11 42 2544 MON. ---- 11 70 2572 MON. ---- 12 12 2514 SAT. 12 43 2545 TUE. 12 71 2573 TUE. 13 13 2515 SUN. ---- 13 44 2546 WED. 13 72 2574 WED. 14 14 2516 MON. ---- 14 45 2547 THU. 7 ! 14 73 2575 THU. 11 ! 15 15 2517 TUE. 15 46 2548 FRI. 15 74 2576 FRI. 16 16 2518 WED. 16 47 2549 SAT. 16 75 2577 SAT. 17 17 2519 THU. 3 ! 17 48 2550 SUN. ---- 17 76 2578 SUN. ---- 18 18 2520 FRI. 18 49 2551 MON. ---- 18 77 2579 MON. ---- 19 19 2521 SAT. 19 50 2552 TUE. 19 78 2580 TUE. 20 20 2522 SUN. ---- 20 51 2553 WED. 20 79 2581 WED. 21 21 2523 MON. ---- 21 52 2554 THU. 8 ! 21 80 2582 THU. 12 ! 22 22 2524 TUE. 22 53 2555 FRI. 22 81 2583 FRI. 23 23 2525 WED. 23 54 2556 SAT. 23 82 2584 SAT. 24 24 2526 THU. 4 ! 24 55 2557 SUN. ---- 24 83 2585 SUN. ---- 25 25 2527 FRI. 25 56 2558 MON. ---- 25 84 2586 MON. ---- 26 26 2528 SAT. 26 57 2559 TUE. 26 85 2587 TUE. 27 27 2529 SUN. ---- 27 58 2560 WED. 27 86 2588 WED. 28 28 2530 MON. ---- 28 59 2561 THU. 9 ! 28 87 2589 THU. 13 ! 29 29 2531 TUE. 29 88 2590 FRI. 30 30 2532 WED. 30 89 2591 SAT. 31 31 2533 THU. 5 ! 31 90 2592 SUN. ---- ------------------------------ ------------------------------ ------------------------------ 2030.-CALENDAR-. APRIL MAY JUNE ------------------------------ ------------------------------ ------------------------------ DAY DAY & NO DAY DAY & NO DAY DAY & NO ------------------- --------- ------------------- --------- ------------------- --------- OF OF THE JULIAN OF THE OF OF THE JULIAN DE la OF OF THE JULIAN OF THE MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK MONTH YEAR ECOULE WEEK A 12H TU A 12H TU A 12H TU ------------------- --------- ------------------- --------- ------------------- --------- 246 246 246 1 91 2593 MON. ---- 1 121 2623 WED. 1 152 2654 SAT. 2 92 2594 TUE. 2 122 2624 THU. 18 ! 2 153 2655 SUN. ---- 3 93 2595 WED. 3 123 2625 FRI. 3 154 2656 MON. ---- 4 94 2596 THU. 14 ! 4 124 2626 SAT. 4 155 2657 TUE. 5 95 2597 FRI. 5 125 2627 SUN. ---- 5 156 2658 WED. 6 96 2598 SAT. 6 126 2628 MON. ---- 6 157 2659 THU. 23 ! 7 97 2599 SUN. ---- 7 127 2629 TUE. 7 158 2660 FRI. 8 98 2600 MON. ---- 8 128 2630 WED. 8 159 2661 SAT. 9 99 2601 TUE. 9 129 2631 THU. 19 ! 9 160 2662 SUN. ---- 10 100 2602 WED. 10 130 2632 FRI. 10 161 2663 MON. ---- 11 101 2603 THU. 15 ! 11 131 2633 SAT. 11 162 2664 TUE. 12 102 2604 FRI. 12 132 2634 SUN. ---- 12 163 2665 WED. 13 103 2605 SAT. 13 133 2635 MON. ---- 13 164 2666 THU. 24 ! 14 104 2606 SUN. ---- 14 134 2636 TUE. 14 165 2667 FRI. 15 105 2607 MON. ---- 15 135 2637 WED. 15 166 2668 SAT. 16 106 2608 TUE. 16 136 2638 THU. 20 ! 16 167 2669 SUN. ---- 17 107 2609 WED. 17 137 2639 FRI. 17 168 2670 MON. ---- 18 108 2610 THU. 16 ! 18 138 2640 SAT. 18 169 2671 TUE. 19 109 2611 FRI. 19 139 2641 SUN. ---- 19 170 2672 WED. 20 110 2612 SAT. 20 140 2642 MON. ---- 20 171 2673 THU. 25 ! 21 111 2613 SUN. ---- 21 141 2643 TUE. 21 172 2674 FRI. 22 112 2614 MON. ---- 22 142 2644 WED. 22 173 2675 SAT. 23 113 2615 TUE. 23 143 2645 THU. 21 ! 23 174 2676 SUN. ---- 24 114 2616 WED. 24 144 2646 FRI. 24 175 2677 MON. ---- 25 115 2617 THU. 17 ! 25 145 2647 SAT. 25 176 2678 TUE. 26 116 2618 FRI. 26 146 2648 SUN. ---- 26 177 2679 WED. 27 117 2619 SAT. 27 147 2649 MON. ---- 27 178 2680 THU. 26 ! 28 118 2620 SUN. ---- 28 148 2650 TUE. 28 179 2681 FRI. 29 119 2621 MON. ---- 29 149 2651 WED. 29 180 2682 SAT. 30 120 2622 TUE. 30 150 2652 THU. 22 ! 30 181 2683 SUN. ---- 31 151 2653 FRI. ------------------------------ ------------------------------ ------------------------------ 2030.-CALENDAR-. JULY AUGUST SEPTEMBER ------------------------------ ------------------------------ ------------------------------ DAY DAY & NO DAY DAY & NO DAY DAY & NO ------------------- --------- ------------------- --------- ------------------- --------- OF OF THE JULIAN OF THE OF OF THE JULIAN DE la OF OF THE JULIAN OF THE MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK MONTH YEAR ECOULE WEEK A 12H TU A 12H TU A 12H TU ------------------- --------- ------------------- --------- ------------------- --------- 246 246 246 1 182 2684 MON. ---- 1 213 2715 THU. 31 ! 1 244 2746 SUN. ---- 2 183 2685 TUE. 2 214 2716 FRI. 2 245 2747 MON. ---- 3 184 2686 WED. 3 215 2717 SAT. 3 246 2748 TUE. 4 185 2687 THU. 27 ! 4 216 2718 SUN. ---- 4 247 2749 WED. 5 186 2688 FRI. 5 217 2719 MON. ---- 5 248 2750 THU. 36 ! 6 187 2689 SAT. 6 218 2720 TUE. 6 249 2751 FRI. 7 188 2690 SUN. ---- 7 219 2721 WED. 7 250 2752 SAT. 8 189 2691 MON. ---- 8 220 2722 THU. 32 ! 8 251 2753 SUN. ---- 9 190 2692 TUE. 9 221 2723 FRI. 9 252 2754 MON. ---- 10 191 2693 WED. 10 222 2724 SAT. 10 253 2755 TUE. 11 192 2694 THU. 28 ! 11 223 2725 SUN. ---- 11 254 2756 WED. 12 193 2695 FRI. 12 224 2726 MON. ---- 12 255 2757 THU. 37 ! 13 194 2696 SAT. 13 225 2727 TUE. 13 256 2758 FRI. 14 195 2697 SUN. ---- 14 226 2728 WED. 14 257 2759 SAT. 15 196 2698 MON. ---- 15 227 2729 THU. 33 ! 15 258 2760 SUN. ---- 16 197 2699 TUE. 16 228 2730 FRI. 16 259 2761 MON. ---- 17 198 2700 WED. 17 229 2731 SAT. 17 260 2762 TUE. 18 199 2701 THU. 29 ! 18 230 2732 SUN. ---- 18 261 2763 WED. 19 200 2702 FRI. 19 231 2733 MON. ---- 19 262 2764 THU. 38 ! 20 201 2703 SAT. 20 232 2734 TUE. 20 263 2765 FRI. 21 202 2704 SUN. ---- 21 233 2735 WED. 21 264 2766 SAT. 22 203 2705 MON. ---- 22 234 2736 THU. 34 ! 22 265 2767 SUN. ---- 23 204 2706 TUE. 23 235 2737 FRI. 23 266 2768 MON. ---- 24 205 2707 WED. 24 236 2738 SAT. 24 267 2769 TUE. 25 206 2708 THU. 30 ! 25 237 2739 SUN. ---- 25 268 2770 WED. 26 207 2709 FRI. 26 238 2740 MON. ---- 26 269 2771 THU. 39 ! 27 208 2710 SAT. 27 239 2741 TUE. 27 270 2772 FRI. 28 209 2711 SUN. ---- 28 240 2742 WED. 28 271 2773 SAT. 29 210 2712 MON. ---- 29 241 2743 THU. 35 ! 29 272 2774 SUN. ---- 30 211 2713 TUE. 30 242 2744 FRI. 30 273 2775 MON. ---- 31 212 2714 WED. 31 243 2745 SAT. ------------------------------ ------------------------------ ------------------------------ 2030.-CALENDAR-. OCTOBER NOVEMBER DECEMBER ------------------------------ ------------------------------ ------------------------------ DAY DAY & NO DAY DAY & NO DAY DAY & NO ------------------- --------- ------------------- --------- ------------------- --------- OF OF THE JULIAN OF THE OF OF THE JULIAN DE la OF OF THE JULIAN OF THE MONTH YEAR ELAPSED WEEK MONTH YEAR ELAPSED WEEK MONTH YEAR ECOULE WEEK A 12H TU A 12H TU A 12H TU ------------------- --------- ------------------- --------- ------------------- --------- 246 246 246 1 274 2776 TUE. 1 305 2807 FRI. 1 335 2837 SUN. ---- 2 275 2777 WED. 2 306 2808 SAT. 2 336 2838 MON. ---- 3 276 2778 THU. 40 ! 3 307 2809 SUN. ---- 3 337 2839 TUE. 4 277 2779 FRI. 4 308 2810 MON. ---- 4 338 2840 WED. 5 278 2780 SAT. 5 309 2811 TUE. 5 339 2841 THU. 49 ! 6 279 2781 SUN. ---- 6 310 2812 WED. 6 340 2842 FRI. 7 280 2782 MON. ---- 7 311 2813 THU. 45 ! 7 341 2843 SAT. 8 281 2783 TUE. 8 312 2814 FRI. 8 342 2844 SUN. ---- 9 282 2784 WED. 9 313 2815 SAT. 9 343 2845 MON. ---- 10 283 2785 THU. 41 ! 10 314 2816 SUN. ---- 10 344 2846 TUE. 11 284 2786 FRI. 11 315 2817 MON. ---- 11 345 2847 WED. 12 285 2787 SAT. 12 316 2818 TUE. 12 346 2848 THU. 50 ! 13 286 2788 SUN. ---- 13 317 2819 WED. 13 347 2849 FRI. 14 287 2789 MON. ---- 14 318 2820 THU. 46 ! 14 348 2850 SAT. 15 288 2790 TUE. 15 319 2821 FRI. 15 349 2851 SUN. ---- 16 289 2791 WED. 16 320 2822 SAT. 16 350 2852 MON. ---- 17 290 2792 THU. 42 ! 17 321 2823 SUN. ---- 17 351 2853 TUE. 18 291 2793 FRI. 18 322 2824 MON. ---- 18 352 2854 WED. 19 292 2794 SAT. 19 323 2825 TUE. 19 353 2855 THU. 51 ! 20 293 2795 SUN. ---- 20 324 2826 WED. 20 354 2856 FRI. 21 294 2796 MON. ---- 21 325 2827 THU. 47 ! 21 355 2857 SAT. 22 295 2797 TUE. 22 326 2828 FRI. 22 356 2858 SUN. ---- 23 296 2798 WED. 23 327 2829 SAT. 23 357 2859 MON. ---- 24 297 2799 THU. 43 ! 24 328 2830 SUN. ---- 24 358 2860 TUE. 25 298 2800 FRI. 25 329 2831 MON. ---- 25 359 2861 WED. 26 299 2801 SAT. 26 330 2832 TUE. 26 360 2862 THU. 52 ! 27 300 2802 SUN. ---- 27 331 2833 WED. 27 361 2863 FRI. 28 301 2803 MON. ---- 28 332 2834 THU. 48 ! 28 362 2864 SAT. 29 302 2804 TUE. 29 333 2835 FRI. 29 363 2865 SUN. ---- 30 303 2805 WED. 30 334 2836 SAT. 30 364 2866 MON. ---- 31 304 2806 THU. 44 ! 31 365 2867 TUE. ------------------------------ ------------------------------ ------------------------------