KECK OBSERVATORY CALENDAR FOR 2043 -ASTRONOMICAL (computed for altitude 4160.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON(midnight) DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) Zenith 2043 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ RA DEC Dist 12 18 18 12 18 18 h h % h m d m deg WED APR 01 18 46 19 24 19 50 00 53 05 02 05 28 06 06 08 10 12 21 17 24 9.2 5.0 54 1842-2842 >90 THU APR 02 18 46 19 24 19 50 01 43 05 01 05 27 06 05 08 14 12 25 17 26 9.2 5.9 64 1937-2706 >90 FRI APR 03 18 47 19 24 19 51 02 31 05 00 05 26 06 04 08 19 12 29 17 29 9.1 6.7 72 2032-2407 >90 SAT APR 04 18 47 19 25 19 51 03 15 14 07 04 59 05 25 06 03 08 23 12 33 17 32 9.1 7.4 81 2125-1950 >90 SUN APR 05 18 47 19 25 19 51 03 57 15 06 04 58 05 24 06 02 08 27 12 36 17 35 9.1 8.1 88 2217-1427 >90 MON APR 06 18 47 19 25 19 52 04 36 16 05 04 57 05 23 06 01 08 32 12 40 17 38 9.1 8.7 96 2308-0811 >90 TUE APR 07 18 48 19 26 19 52 05 15 17 05 04 56 05 22 06 00 08 36 12 44 17 41 9.1 9.1 100 2359-0122 >90 WED APR 08 18 48 19 26 19 52 05 54 18 06 04 55 05 21 06 00 08 40 12 48 17 44 9.0 9.0 100 0051 0539 >90 THU APR 09 18 48 19 26 19 53 06 36 19 09 04 54 05 20 05 59 08 45 12 52 17 47 9.0 9.0 100 0145 1226 >90 FRI APR 10 18 48 19 27 19 53 20 15 04 53 05 20 05 58 08 48 12 56 17 50 9.0 8.6 95 0242 1831 >90 SAT APR 11 18 49 19 27 19 53 21 24 04 52 05 19 05 57 08 52 13 00 17 53 9.0 7.5 83 0342 2325 >90 SUN APR 12 18 49 19 27 19 54 22 34 04 51 05 18 05 56 08 57 13 04 17 56 9.0 6.3 70 0445 2645 >90 MON APR 13 18 49 19 28 19 54 23 40 04 50 05 17 05 55 09 01 13 08 17 59 8.9 5.2 57 0549 2812 >90 TUE APR 14 18 50 19 28 19 55 00 42 04 50 05 16 05 55 09 06 13 12 18 03 8.9 4.1 46 0654 2743 85 WED APR 15 18 50 19 29 19 55 01 35 04 49 05 15 05 54 09 10 13 16 18 06 8.9 3.2 36 0753 2536 73 THU APR 16 18 50 19 29 19 56 02 21 04 48 05 14 05 53 09 15 13 20 18 09 8.9 2.5 27 0849 2204 63 FRI APR 17 18 51 19 29 19 56 03 01 04 47 05 14 05 52 09 19 13 24 18 12 8.9 1.8 19 0941 1729 53 SAT APR 18 18 51 19 30 19 56 14 15 03 37 04 46 05 13 05 51 09 23 13 28 18 14 8.8 1.1 13 1029 1213 43 SUN APR 19 18 51 19 30 19 57 15 07 04 09 04 45 05 12 05 51 09 28 13 32 18 17 8.8 0.6 6 1114 0632 36 MON APR 20 18 52 19 30 19 57 15 57 04 41 04 44 05 11 05 50 09 32 13 36 18 20 8.8 0.1 0 1158 0039 31 TUE APR 21 18 52 19 31 19 58 16 45 05 12 04 43 05 10 05 49 09 37 13 40 18 23 8.7 0.0 0 1241-0512 29 WED APR 22 18 52 19 31 19 58 17 34 05 43 04 42 05 09 05 49 09 41 13 43 18 26 8.7 0.0 0 1325-1051 31 THU APR 23 18 53 19 32 19 59 18 23 06 17 04 42 05 09 05 48 09 46 13 47 18 30 8.7 0.0 0 1409-1605 36 FRI APR 24 18 53 19 32 19 59 19 13 06 54 04 41 05 08 05 47 09 50 13 51 18 33 8.7 0.0 0 1456-2042 43 SAT APR 25 18 53 19 32 20 00 20 05 04 40 05 07 05 46 09 55 13 55 18 36 8.7 0.1 0 1545-2430 52 SUN APR 26 18 54 19 33 20 00 20 59 04 39 05 06 05 46 09 59 13 59 18 39 8.7 1.0 11 1637-2716 61 MON APR 27 18 54 19 33 20 01 21 53 04 38 05 06 05 45 10 04 14 03 18 42 8.6 1.9 21 1730-2850 70 TUE APR 28 18 54 19 34 20 01 22 46 04 37 05 05 05 44 10 07 14 07 18 45 8.6 2.8 31 1826-2858 79 WED APR 29 18 55 19 34 20 02 23 37 04 37 05 04 05 44 10 12 14 11 18 49 8.6 3.6 41 1920-2740 89 THU APR 30 18 55 19 35 20 02 00 25 04 36 05 03 05 43 10 16 14 15 18 52 8.6 4.4 51 2016-2516 >90 ONE LINE REFERS TO EVENING DATE LAST QUARTER Apr 02 18:57 UT AND FOLLOWING MORNING. NEW MOON Apr 09 19:04 UT All dates and times are zone HST FIRST QUARTER Apr 16 10:08 UT in upper table (except sid time). FULL MOON Apr 24 07:22 UT