KECK OBSERVATORY CALENDAR FOR 2024 -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 2024 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 FRI MAR 01 18 37 19 15 19 41 23 42 05 28 05 53 06 31 06 01 10 21 15 50 9.8 4.0 41 1541-2316 90 SAT MAR 02 18 38 19 15 19 41 00 40 05 27 05 52 06 30 06 05 10 25 15 53 9.8 5.0 51 1637-2631 >90 SUN MAR 03 18 38 19 16 19 41 01 40 05 26 05 52 06 29 06 09 10 29 15 56 9.8 6.0 61 1735-2817 >90 MON MAR 04 18 38 19 16 19 41 02 40 05 25 05 51 06 28 06 13 10 33 15 59 9.7 7.0 71 1836-2828 >90 TUE MAR 05 18 39 19 16 19 42 03 38 14 01 05 25 05 50 06 28 06 18 10 37 16 02 9.7 7.9 81 1938-2654 >90 WED MAR 06 18 39 19 17 19 42 04 32 15 07 05 24 05 49 06 27 06 22 10 41 16 05 9.7 8.8 91 2039-2335 >90 THU MAR 07 18 39 19 17 19 42 05 21 16 14 05 23 05 49 06 26 06 26 10 44 16 08 9.7 9.6 99 2139-1844 >90 FRI MAR 08 18 40 19 17 19 43 06 06 17 20 05 22 05 48 06 25 06 31 10 48 16 11 9.6 9.6 100 2235-1240 >90 SAT MAR 09 18 40 19 17 19 43 06 48 18 24 05 21 05 47 06 24 06 35 10 52 16 14 9.6 9.6 100 2329-0551 >90 SUN MAR 10 18 40 19 18 19 43 19 27 05 21 05 46 06 24 06 39 10 56 16 18 9.6 9.6 100 0022 0117 >90 MON MAR 11 18 40 19 18 19 44 20 30 05 20 05 45 06 23 06 44 11 00 16 21 9.6 8.8 92 0115 0816 >90 TUE MAR 12 18 41 19 18 19 44 21 33 05 19 05 44 06 22 06 47 11 04 16 24 9.6 7.8 81 0209 1441 >90 WED MAR 13 18 41 19 19 19 44 22 36 05 18 05 44 06 21 06 51 11 08 16 27 9.6 6.7 70 0304 2009 >90 THU MAR 14 18 41 19 19 19 44 23 40 05 17 05 43 06 20 06 55 11 12 16 30 9.5 5.6 58 0400 2423 >90 FRI MAR 15 18 42 19 19 19 45 00 42 05 16 05 42 06 19 07 00 11 16 16 33 9.5 4.6 47 0459 2704 85 SAT MAR 16 18 42 19 19 19 45 01 41 05 15 05 41 06 19 07 04 11 20 16 36 9.5 3.6 37 0557 2818 73 SUN MAR 17 18 42 19 20 19 45 02 34 05 15 05 40 06 18 07 08 11 24 16 40 9.5 2.7 28 0654 2756 61 MON MAR 18 18 42 19 20 19 46 03 22 05 14 05 39 06 17 07 13 11 28 16 43 9.5 1.9 19 0749 2609 50 TUE MAR 19 18 43 19 20 19 46 14 04 04 05 05 13 05 38 06 16 07 17 11 32 16 46 9.5 1.1 11 0842 2309 40 WED MAR 20 18 43 19 21 19 46 14 58 04 43 05 12 05 38 06 15 07 21 11 36 16 49 9.4 0.5 5 0931 1910 29 THU MAR 21 18 43 19 21 19 47 15 50 05 17 05 11 05 37 06 14 07 26 11 40 16 52 9.4 0.0 0 1017 1426 21 FRI MAR 22 18 44 19 21 19 47 16 40 05 48 05 10 05 36 06 13 07 30 11 44 16 54 9.4 0.0 0 1101 0910 15 SAT MAR 23 18 44 19 21 19 47 17 28 06 19 05 09 05 35 06 12 07 34 11 48 16 57 9.4 0.0 0 1144 0333 16 SUN MAR 24 18 44 19 22 19 47 18 16 06 49 05 08 05 34 06 12 07 38 11 52 17 00 9.4 0.0 0 1226-0213 24 MON MAR 25 18 44 19 22 19 48 19 03 05 07 05 33 06 11 07 43 11 55 17 03 9.3 0.0 0 1309-0756 33 TUE MAR 26 18 45 19 22 19 48 19 53 05 06 05 32 06 10 07 47 11 59 17 06 9.3 0.1 0 1353-1325 43 WED MAR 27 18 45 19 23 19 48 20 44 05 05 05 31 06 09 07 51 12 03 17 09 9.3 0.9 10 1440-1827 54 THU MAR 28 18 45 19 23 19 49 21 37 05 05 05 30 06 08 07 56 12 07 17 13 9.3 1.8 19 1529-2247 65 FRI MAR 29 18 45 19 23 19 49 22 34 05 04 05 29 06 07 08 00 12 11 17 16 9.2 2.8 29 1623-2605 76 SAT MAR 30 18 46 19 24 19 49 23 32 05 03 05 29 06 06 08 03 12 15 17 19 9.2 3.7 40 1718-2807 88 SUN MAR 31 18 46 19 24 19 50 00 31 05 02 05 28 06 06 08 08 12 19 17 22 9.2 4.7 50 1819-2852 >90 ONE LINE REFERS TO EVENING DATE LAST QUARTER Mar 03 15:26 UT AND FOLLOWING MORNING. NEW MOON Mar 10 08:58 UT All dates and times are zone HST FIRST QUARTER Mar 17 04:10 UT in upper table (except sid time). FULL MOON Mar 25 07:02 UT