KECK OBSERVATORY CALENDAR FOR 2028 -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 2028 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 FRI SEP 01 18 47 19 25 19 52 17 09 05 16 04 52 05 18 05 57 17 51 22 26 03 45 9.9 0.0 0 2138-1146 34 SAT SEP 02 18 46 19 24 19 51 17 43 06 04 04 52 05 19 05 57 17 54 22 30 03 50 9.9 0.0 0 2223-0648 27 SUN SEP 03 18 45 19 23 19 50 18 16 06 52 04 53 05 19 05 57 17 57 22 34 03 54 9.9 0.0 0 2306-0137 23 MON SEP 04 18 44 19 22 19 49 18 48 04 53 05 19 05 57 17 59 22 38 03 58 9.9 0.0 0 2349 0335 24 TUE SEP 05 18 43 19 21 19 48 19 20 04 53 05 19 05 57 18 02 22 42 04 02 10.0 0.0 0 0033 0839 29 WED SEP 06 18 43 19 21 19 47 19 54 04 54 05 20 05 58 18 06 22 46 04 07 10.0 0.5 5 0118 1323 37 THU SEP 07 18 42 19 20 19 46 20 30 04 54 05 20 05 58 18 09 22 50 04 11 10.0 1.2 11 0206 1737 46 FRI SEP 08 18 41 19 19 19 45 21 10 04 54 05 20 05 58 18 12 22 54 04 15 10.0 1.8 18 0255 2109 56 SAT SEP 09 18 40 19 18 19 44 21 55 04 54 05 20 05 58 18 15 22 58 04 19 10.0 2.6 26 0348 2344 67 SUN SEP 10 18 39 19 17 19 43 22 44 04 55 05 21 05 59 18 18 23 02 04 24 10.1 3.5 34 0443 2509 78 MON SEP 11 18 38 19 16 19 42 23 39 04 55 05 21 05 59 18 21 23 06 04 28 10.1 4.4 43 0539 2508 89 TUE SEP 12 18 37 19 15 19 41 00 39 04 55 05 21 05 59 18 24 23 10 04 32 10.1 5.4 53 0639 2356 >90 WED SEP 13 18 36 19 14 19 40 01 42 14 45 04 56 05 21 05 59 18 27 23 14 04 36 10.1 6.5 63 0738 2108 >90 THU SEP 14 18 35 19 13 19 39 02 46 15 34 04 56 05 22 05 59 18 30 23 18 04 41 10.1 7.5 74 0835 1659 >90 FRI SEP 15 18 34 19 12 19 38 03 50 16 21 04 56 05 22 06 00 18 33 23 22 04 44 10.2 8.6 84 0931 1144 >90 SAT SEP 16 18 33 19 11 19 37 04 53 17 05 04 56 05 22 06 00 18 36 23 26 04 48 10.2 9.7 95 1026 0542 >90 SUN SEP 17 18 32 19 10 19 36 05 57 17 48 04 57 05 22 06 00 18 39 23 29 04 52 10.2 10.2 100 1120-0045 >90 MON SEP 18 18 32 19 09 19 35 18 31 04 57 05 23 06 00 18 42 23 33 04 57 10.2 10.2 100 1215-0711 >90 TUE SEP 19 18 31 19 08 19 34 19 15 04 57 05 23 06 00 18 45 23 37 05 01 10.2 10.1 98 1310-1310 >90 WED SEP 20 18 30 19 07 19 33 20 02 04 57 05 23 06 01 18 47 23 41 05 05 10.3 9.4 91 1407-1818 >90 THU SEP 21 18 29 19 06 19 32 20 53 04 58 05 23 06 01 18 50 23 45 05 09 10.3 8.5 82 1506-2215 >90 FRI SEP 22 18 28 19 05 19 31 21 46 04 58 05 23 06 01 18 53 23 49 05 13 10.3 7.6 73 1605-2447 >90 SAT SEP 23 18 27 19 05 19 30 22 42 04 58 05 24 06 01 18 57 23 53 05 18 10.3 6.7 64 1704-2548 >90 SUN SEP 24 18 26 19 04 19 29 23 39 04 58 05 24 06 01 19 00 23 57 05 22 10.3 5.8 55 1802-2522 >90 MON SEP 25 18 25 19 03 19 28 00 36 04 59 05 24 06 02 19 03 00 01 05 26 10.4 4.8 46 1858-2334 86 TUE SEP 26 18 24 19 02 19 27 01 30 04 59 05 24 06 02 19 06 00 05 05 30 10.4 3.9 37 1949-2050 75 WED SEP 27 18 23 19 01 19 26 14 32 02 22 04 59 05 25 06 02 19 09 00 09 05 35 10.4 3.0 29 2038-1708 64 THU SEP 28 18 23 19 00 19 26 15 10 03 13 04 59 05 25 06 02 19 12 00 13 05 39 10.4 2.2 21 2125-1247 53 FRI SEP 29 18 22 18 59 19 25 15 44 04 01 05 00 05 25 06 03 19 15 00 17 05 43 10.4 1.4 13 2210-0759 42 SAT SEP 30 18 21 18 58 19 24 16 17 04 49 05 00 05 25 06 03 19 18 00 21 05 47 10.4 0.6 5 2254-0254 31 ONE LINE REFERS TO EVENING DATE FULL MOON Sep 03 23:47 UT AND FOLLOWING MORNING. LAST QUARTER Sep 12 00:46 UT All dates and times are zone HST NEW MOON Sep 18 18:24 UT in upper table (except sid time). FIRST QUARTER Sep 25 13:08 UT