KECK OBSERVATORY CALENDAR FOR 2028 -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 2028 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 SAT JAN 01 18 05 18 45 19 12 22 26 05 39 06 06 06 46 01 36 06 24 12 04 10.4 7.2 69 2246-0406 >90 SUN JAN 02 18 06 18 46 19 13 23 14 05 39 06 06 06 46 01 41 06 28 12 08 10.4 6.4 61 2329 0111 >90 MON JAN 03 18 06 18 47 19 14 00 02 05 39 06 06 06 47 01 45 06 32 12 12 10.4 5.6 53 0017 0558 >90 TUE JAN 04 18 07 18 47 19 14 00 53 05 40 06 07 06 47 01 49 06 36 12 17 10.4 4.8 45 0057 1139 81 WED JAN 05 18 07 18 48 19 15 01 47 05 40 06 07 06 47 01 54 06 40 12 21 10.4 3.9 37 0145 1632 70 THU JAN 06 18 08 18 48 19 15 02 44 05 40 06 07 06 47 01 58 06 44 12 25 10.4 2.9 28 0236 2050 58 FRI JAN 07 18 09 18 49 19 16 03 45 05 41 06 07 06 48 02 03 06 48 12 30 10.4 1.9 18 0333 2412 45 SAT JAN 08 18 09 18 50 19 16 14 31 04 48 05 41 06 08 06 48 02 07 06 52 12 34 10.4 0.9 8 0434 2615 32 SUN JAN 09 18 10 18 50 19 17 15 30 05 51 05 41 06 08 06 48 02 12 06 56 12 38 10.4 0.0 0 0539 2637 19 MON JAN 10 18 11 18 51 19 18 16 36 06 50 05 41 06 08 06 48 02 17 07 00 12 42 10.4 0.0 0 0645 2507 06 TUE JAN 11 18 11 18 51 19 18 17 44 05 42 06 08 06 48 02 21 07 04 12 47 10.4 0.0 0 0750 2147 11 WED JAN 12 18 12 18 52 19 19 18 53 05 42 06 09 06 49 02 26 07 08 12 51 10.4 0.0 0 0851 1656 25 THU JAN 13 18 12 18 53 19 19 19 59 05 42 06 09 06 49 02 30 07 12 12 55 10.4 0.7 6 0949 1100 39 FRI JAN 14 18 13 18 53 19 20 21 02 05 42 06 09 06 49 02 35 07 16 12 59 10.4 1.7 16 1044 0431 53 SAT JAN 15 18 14 18 54 19 20 22 02 05 42 06 09 06 49 02 39 07 20 13 03 10.4 2.7 26 1137-0205 67 SUN JAN 16 18 14 18 54 19 21 23 01 05 42 06 09 06 49 02 44 07 24 13 06 10.3 3.7 35 1228-0820 80 MON JAN 17 18 15 18 55 19 22 23 59 05 42 06 09 06 49 02 49 07 27 13 10 10.3 4.6 44 1315-1334 >90 TUE JAN 18 18 16 18 55 19 22 00 57 05 43 06 09 06 49 02 53 07 31 13 15 10.3 5.6 53 1413-1853 >90 WED JAN 19 18 16 18 56 19 23 01 55 05 43 06 09 06 49 02 58 07 35 13 19 10.3 6.5 63 1506-2240 >90 THU JAN 20 18 17 18 57 19 23 02 53 05 43 06 09 06 49 03 02 07 39 13 23 10.3 7.5 72 1601-2513 >90 FRI JAN 21 18 18 18 57 19 24 03 48 14 19 05 43 06 09 06 49 03 06 07 43 13 27 10.3 8.4 81 1656-2628 >90 SAT JAN 22 18 18 18 58 19 24 04 41 15 11 05 43 06 09 06 49 03 10 07 47 13 31 10.3 9.3 89 1750-2624 >90 SUN JAN 23 18 19 18 58 19 25 05 30 16 05 05 43 06 09 06 49 03 15 07 51 13 35 10.3 10.1 97 1844-2504 >90 MON JAN 24 18 19 18 59 19 25 06 14 17 00 05 43 06 09 06 49 03 19 07 55 13 39 10.3 10.3 100 1935-2238 >90 TUE JAN 25 18 20 18 59 19 26 06 54 17 53 05 43 06 09 06 48 03 24 07 59 13 43 10.3 10.3 100 2023-1915 >90 WED JAN 26 18 21 19 00 19 26 18 44 05 43 06 09 06 48 03 28 08 03 13 47 10.3 10.3 100 2109-1508 >90 THU JAN 27 18 21 19 01 19 27 19 33 05 42 06 09 06 48 03 33 08 07 13 50 10.2 10.2 99 2153-1029 >90 FRI JAN 28 18 22 19 01 19 27 20 22 05 42 06 09 06 48 03 37 08 11 13 54 10.2 9.3 91 2236-0529 >90 SAT JAN 29 18 22 19 02 19 28 21 09 05 42 06 08 06 48 03 42 08 15 13 58 10.2 8.6 83 2318-0017 >90 SUN JAN 30 18 23 19 02 19 28 21 57 05 42 06 08 06 47 03 46 08 19 14 02 10.2 7.7 75 0000 0458 >90 MON JAN 31 18 24 19 03 19 29 22 46 05 42 06 08 06 47 03 51 08 23 14 06 10.2 6.9 67 0043 1007 >90 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Jan 05 01:41 UT AND FOLLOWING MORNING. FULL MOON Jan 12 04:03 UT All dates and times are zone HST LAST QUARTER Jan 18 19:27 UT in upper table (except sid time). NEW MOON Jan 26 15:11 UT