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 WED MAY 01 18 56 19 36 20 03 01 51 04 34 05 02 05 42 10 24 14 21 18 56 8.5 5.8 68 2157-1718 >90 THU MAY 02 18 56 19 36 20 04 02 33 04 34 05 01 05 41 10 29 14 25 19 00 8.5 6.5 76 2250-1117 >90 FRI MAY 03 18 56 19 36 20 04 03 12 14 51 04 33 05 01 05 41 10 33 14 29 19 03 8.5 7.1 84 2342-0438 >90 SAT MAY 04 18 57 19 37 20 05 03 50 15 51 04 32 05 00 05 40 10 38 14 33 19 06 8.4 7.7 91 0033 0216 >90 SUN MAY 05 18 57 19 37 20 05 04 30 16 52 04 31 04 59 05 40 10 41 14 37 19 09 8.4 8.4 99 0125 0904 >90 MON MAY 06 18 58 19 38 20 06 05 12 17 54 04 31 04 59 05 39 10 46 14 41 19 13 8.4 8.4 100 0218 1520 >90 TUE MAY 07 18 58 19 38 20 06 05 59 18 59 04 30 04 58 05 39 10 50 14 45 19 16 8.4 8.4 100 0314 2041 >90 WED MAY 08 18 58 19 39 20 07 06 50 20 05 04 29 04 58 05 38 10 55 14 49 19 19 8.4 8.4 100 0413 2443 >90 THU MAY 09 18 59 19 39 20 08 21 10 04 29 04 57 05 38 11 00 14 53 19 23 8.3 7.3 87 0514 2710 >90 FRI MAY 10 18 59 19 40 20 08 22 12 04 28 04 57 05 37 11 04 14 57 19 26 8.3 6.3 75 0614 2755 >90 SAT MAY 11 19 00 19 40 20 09 23 08 04 28 04 56 05 37 11 09 15 01 19 29 8.3 5.3 64 0713 2703 >90 SUN MAY 12 19 00 19 41 20 09 23 57 04 27 04 55 05 36 11 13 15 05 19 32 8.3 4.5 54 0808 2444 >90 MON MAY 13 19 00 19 41 20 10 00 39 04 26 04 55 05 36 11 18 15 09 19 35 8.3 3.8 45 0900 2114 85 TUE MAY 14 19 01 19 42 20 10 01 16 04 26 04 55 05 35 11 22 15 13 19 39 8.3 3.2 38 0948 1656 76 WED MAY 15 19 01 19 42 20 11 01 50 04 25 04 54 05 35 11 27 15 17 19 42 8.2 2.6 31 1033 1200 68 THU MAY 16 19 02 19 43 20 12 02 21 04 25 04 54 05 35 11 32 15 20 19 46 8.2 2.1 25 1116 0638 61 FRI MAY 17 19 02 19 43 20 12 14 06 02 52 04 24 04 53 05 34 11 36 15 24 19 49 8.2 1.5 18 1159 0100 54 SAT MAY 18 19 03 19 44 20 13 14 54 03 22 04 24 04 53 05 34 11 41 15 28 19 53 8.2 1.0 12 1241-0444 48 SUN MAY 19 19 03 19 44 20 13 15 42 03 54 04 23 04 52 05 34 11 45 15 32 19 56 8.2 0.5 5 1324-1022 44 MON MAY 20 19 03 19 45 20 14 16 32 04 29 04 23 04 52 05 33 11 50 15 36 20 00 8.1 0.0 0 1410-1545 41 TUE MAY 21 19 04 19 45 20 14 17 24 05 08 04 23 04 52 05 33 11 54 15 40 20 04 8.1 0.0 0 1459-2036 42 WED MAY 22 19 04 19 46 20 15 18 20 05 51 04 22 04 51 05 33 11 59 15 44 20 07 8.1 0.0 0 1551-2437 44 THU MAY 23 19 05 19 46 20 15 19 19 06 42 04 22 04 51 05 33 12 02 15 48 20 11 8.1 0.0 0 1648-2731 49 FRI MAY 24 19 05 19 47 20 16 20 18 04 21 04 51 05 32 12 07 15 52 20 14 8.1 0.0 0 1748-2857 56 SAT MAY 25 19 06 19 47 20 17 21 17 04 21 04 50 05 32 12 12 15 56 20 18 8.1 1.0 12 1849-2844 64 SUN MAY 26 19 06 19 48 20 17 22 13 04 21 04 50 05 32 12 16 16 00 20 22 8.1 1.9 23 1950-2649 73 MON MAY 27 19 06 19 48 20 18 23 04 04 20 04 50 05 32 12 21 16 04 20 25 8.0 2.8 34 2049-2315 82 TUE MAY 28 19 07 19 49 20 18 23 50 04 20 04 50 05 32 12 25 16 08 20 28 8.0 3.5 43 2141-1812 >90 WED MAY 29 19 07 19 49 20 19 00 32 04 20 04 49 05 31 12 30 16 12 20 32 8.0 4.2 52 2238-1245 >90 THU MAY 30 19 08 19 50 20 19 01 11 04 20 04 49 05 31 12 34 16 16 20 36 8.0 4.9 60 2329-0620 >90 FRI MAY 31 19 08 19 50 20 20 01 48 04 19 04 49 05 31 12 39 16 20 20 39 8.0 5.5 68 0019 0022 >90 ONE LINE REFERS TO EVENING DATE LAST QUARTER May 01 11:27 UT AND FOLLOWING MORNING. NEW MOON May 08 03:22 UT All dates and times are zone HST FIRST QUARTER May 15 11:49 UT in upper table (except sid time). FULL MOON May 23 13:55 UT LAST QUARTER May 30 17:13 UT