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 MON JAN 01 18 05 18 45 19 12 22 53 05 39 06 06 06 46 01 35 06 24 12 04 10.4 3.7 35 1140 0446 78 TUE JAN 02 18 06 18 46 19 13 23 41 05 39 06 06 06 46 01 40 06 28 12 08 10.4 4.5 42 1221-0041 89 WED JAN 03 18 06 18 47 19 14 00 29 05 39 06 06 06 47 01 45 06 32 12 12 10.4 5.2 50 1305-0625 >90 THU JAN 04 18 07 18 47 19 14 01 19 05 40 06 07 06 47 01 49 06 36 12 17 10.4 6.1 58 1349-1152 >90 FRI JAN 05 18 07 18 48 19 15 02 12 05 40 06 07 06 47 01 54 06 40 12 21 10.4 7.0 66 1436-1658 >90 SAT JAN 06 18 08 18 48 19 15 03 09 05 40 06 07 06 47 01 58 06 44 12 25 10.4 7.9 75 1526-2129 >90 SUN JAN 07 18 09 18 49 19 16 04 09 14 44 05 41 06 07 06 48 02 03 06 48 12 30 10.4 8.9 85 1621-2504 >90 MON JAN 08 18 09 18 50 19 16 05 12 15 35 05 41 06 08 06 48 02 07 06 52 12 34 10.4 9.9 95 1720-2722 >90 TUE JAN 09 18 10 18 50 19 17 06 16 16 34 05 41 06 08 06 48 02 12 06 56 12 38 10.4 10.4 100 1823-2801 >90 WED JAN 10 18 11 18 51 19 18 17 39 05 41 06 08 06 48 02 17 07 00 12 42 10.4 10.4 100 1927-2650 >90 THU JAN 11 18 11 18 51 19 18 18 47 05 42 06 08 06 48 02 21 07 04 12 47 10.4 10.4 100 2030-2350 >90 FRI JAN 12 18 12 18 52 19 19 19 54 05 42 06 09 06 49 02 26 07 08 12 51 10.4 9.8 94 2130-1917 >90 SAT JAN 13 18 12 18 53 19 19 20 59 05 42 06 09 06 49 02 30 07 12 12 55 10.4 8.7 83 2226-1334 >90 SUN JAN 14 18 13 18 53 19 20 22 01 05 42 06 09 06 49 02 35 07 16 12 58 10.4 7.7 74 2319-0709 >90 MON JAN 15 18 14 18 54 19 20 23 01 05 42 06 09 06 49 02 39 07 19 13 02 10.4 6.7 64 0010-0025 >90 TUE JAN 16 18 14 18 54 19 21 23 59 05 42 06 09 06 49 02 44 07 23 13 06 10.3 5.7 55 0100 0614 >90 WED JAN 17 18 15 18 55 19 22 00 57 05 42 06 09 06 49 02 49 07 27 13 10 10.3 4.7 45 0151 1227 80 THU JAN 18 18 16 18 55 19 22 01 56 05 43 06 09 06 49 02 53 07 31 13 15 10.3 3.8 36 0242 1801 68 FRI JAN 19 18 16 18 56 19 23 02 56 05 43 06 09 06 49 02 57 07 35 13 19 10.3 2.8 26 0336 2235 56 SAT JAN 20 18 17 18 57 19 23 03 56 05 43 06 09 06 49 03 01 07 39 13 23 10.3 1.8 17 0432 2556 43 SUN JAN 21 18 18 18 57 19 24 14 33 04 54 05 43 06 09 06 49 03 06 07 43 13 27 10.3 0.8 7 0529 2752 32 MON JAN 22 18 18 18 58 19 24 15 27 05 50 05 43 06 09 06 49 03 10 07 47 13 31 10.3 0.0 0 0627 2817 20 TUE JAN 23 18 19 18 58 19 25 16 23 06 40 05 43 06 09 06 49 03 15 07 51 13 35 10.3 0.0 0 0724 2711 10 WED JAN 24 18 19 18 59 19 25 17 19 05 43 06 09 06 49 03 19 07 55 13 39 10.3 0.0 0 0819 2444 07 THU JAN 25 18 20 18 59 19 26 18 15 05 43 06 09 06 48 03 24 07 59 13 43 10.3 0.0 0 0910 2110 17 FRI JAN 26 18 21 19 00 19 26 19 08 05 43 06 09 06 48 03 28 08 03 13 47 10.3 0.0 0 0958 1644 28 SAT JAN 27 18 21 19 01 19 27 19 59 05 42 06 09 06 48 03 33 08 07 13 50 10.2 0.5 5 1043 1142 38 SUN JAN 28 18 22 19 01 19 27 20 47 05 42 06 09 06 48 03 37 08 11 13 54 10.2 1.3 13 1127 0617 49 MON JAN 29 18 22 19 02 19 28 21 35 05 42 06 08 06 48 03 42 08 15 13 58 10.2 2.1 20 1209 0040 60 TUE JAN 30 18 23 19 02 19 28 22 23 05 42 06 08 06 47 03 46 08 19 14 02 10.2 2.9 28 1251-0459 71 WED JAN 31 18 24 19 03 19 29 23 11 05 42 06 08 06 47 03 51 08 23 14 05 10.2 3.7 36 1334-1025 82 ONE LINE REFERS TO EVENING DATE LAST QUARTER Jan 04 03:31 UT AND FOLLOWING MORNING. NEW MOON Jan 11 11:56 UT All dates and times are zone HST FIRST QUARTER Jan 18 03:53 UT in upper table (except sid time). FULL MOON Jan 25 17:53 UT