KECK OBSERVATORY CALENDAR FOR 2024 -NAUTICAL (computed for altitude 4160.0 m) NAUTICAL(12 deg) TWILIGHT/DAWN MOON(midnight) DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (12 deg) Zenith 2024 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ RA DEC Dist 12 18 18 12 12 12 h h % h m d m deg THU FEB 01 18 24 19 03 19 29 00 01 05 42 06 08 06 47 03 29 08 26 14 36 11.1 5.0 44 1419-1539 >90 FRI FEB 02 18 25 19 04 19 30 00 55 05 41 06 08 06 46 03 34 08 30 14 39 11.1 5.8 52 1507-2018 >90 SAT FEB 03 18 25 19 04 19 30 01 52 05 41 06 07 06 46 03 38 08 34 14 42 11.0 6.8 61 1600-2410 >90 SUN FEB 04 18 26 19 05 19 31 02 53 05 41 06 07 06 46 03 43 08 38 14 46 11.0 7.8 70 1656-2655 >90 MON FEB 05 18 26 19 05 19 31 03 55 14 15 05 41 06 07 06 45 03 46 08 42 14 50 11.0 8.8 80 1757-2812 >90 TUE FEB 06 18 27 19 06 19 32 04 57 15 16 05 40 06 06 06 45 03 51 08 46 14 53 11.0 9.8 89 1900-2745 >90 WED FEB 07 18 27 19 06 19 32 05 55 16 22 05 40 06 06 06 45 03 55 08 50 14 57 11.0 10.8 98 2004-2528 >90 THU FEB 08 18 28 19 07 19 32 06 47 17 31 05 40 06 06 06 44 04 00 08 54 15 01 11.0 11.0 100 2105-2126 >90 FRI FEB 09 18 28 19 07 19 33 18 38 05 39 06 05 06 44 04 04 08 58 15 04 11.0 11.0 100 2204-1600 >90 SAT FEB 10 18 29 19 07 19 33 19 44 05 39 06 05 06 43 04 08 09 02 15 08 11.0 10.3 94 2259-0935 >90 SUN FEB 11 18 29 19 08 19 34 20 46 05 39 06 04 06 43 04 13 09 06 15 11 10.9 9.3 85 2352-0241 >90 MON FEB 12 18 30 19 08 19 34 21 47 05 38 06 04 06 42 04 17 09 10 15 15 10.9 8.3 75 0044 0416 >90 TUE FEB 13 18 30 19 09 19 35 22 48 05 38 06 04 06 42 04 22 09 14 15 19 10.9 7.3 66 0136 1052 >90 WED FEB 14 18 31 19 09 19 35 23 48 05 37 06 03 06 41 04 26 09 18 15 22 10.9 6.3 57 0228 1647 >90 THU FEB 15 18 31 19 10 19 35 00 49 05 37 06 03 06 41 04 31 09 22 15 26 10.9 5.2 48 0322 2139 83 FRI FEB 16 18 32 19 10 19 36 01 50 05 36 06 02 06 40 04 35 09 26 15 29 10.9 4.2 38 0418 2521 70 SAT FEB 17 18 32 19 10 19 36 02 50 05 36 06 01 06 40 04 39 09 30 15 32 10.9 3.2 29 0515 2738 58 SUN FEB 18 18 33 19 11 19 36 03 46 05 35 06 01 06 39 04 44 09 34 15 36 10.8 2.3 20 0612 2823 46 MON FEB 19 18 33 19 11 19 37 14 18 04 37 05 35 06 00 06 38 04 48 09 37 15 38 10.8 1.4 12 0709 2738 35 TUE FEB 20 18 33 19 11 19 37 15 14 05 24 05 34 06 00 06 38 04 52 09 41 15 42 10.8 0.6 5 0804 2531 23 WED FEB 21 18 34 19 12 19 38 16 09 06 05 05 34 05 59 06 37 04 57 09 45 15 45 10.8 0.0 0 0855 2214 12 THU FEB 22 18 34 19 12 19 38 17 02 06 41 05 33 05 59 06 36 05 01 09 49 15 49 10.8 0.0 0 0944 1801 02 FRI FEB 23 18 35 19 13 19 38 17 54 05 32 05 58 06 36 05 05 09 53 15 52 10.7 0.0 0 1030 1306 11 SAT FEB 24 18 35 19 13 19 39 18 43 05 32 05 57 06 35 05 09 09 57 15 55 10.7 0.0 0 1114 0743 22 SUN FEB 25 18 35 19 13 19 39 19 31 05 31 05 57 06 34 05 13 10 01 15 59 10.7 0.3 2 1156 0205 33 MON FEB 26 18 36 19 14 19 39 20 19 05 30 05 56 06 34 05 18 10 05 16 02 10.7 1.1 10 1238-0339 44 TUE FEB 27 18 36 19 14 19 40 21 07 05 30 05 55 06 33 05 22 10 09 16 05 10.7 1.9 17 1321-0915 56 WED FEB 28 18 37 19 14 19 40 21 56 05 29 05 55 06 32 05 26 10 13 16 09 10.7 2.7 25 1406-1434 67 THU FEB 29 18 37 19 15 19 40 22 48 05 28 05 54 06 32 05 31 10 17 16 12 10.7 3.5 33 1452-1920 78 ONE LINE REFERS TO EVENING DATE LAST QUARTER Feb 02 23:20 UT AND FOLLOWING MORNING. NEW MOON Feb 09 22:58 UT All dates and times are zone HST FIRST QUARTER Feb 16 15:01 UT in upper table (except sid time). FULL MOON Feb 24 12:31 UT