KECK OBSERVATORY CALENDAR FOR 2027 -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 2027 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 WED SEP 01 18 48 19 26 19 53 19 36 04 52 05 18 05 56 17 49 22 23 03 42 9.9 9.7 98 1203-0511 >90 THU SEP 02 18 47 19 25 19 52 20 16 04 52 05 18 05 57 17 52 22 27 03 46 9.9 9.0 91 1254-1123 >90 FRI SEP 03 18 46 19 24 19 51 20 57 04 52 05 19 05 57 17 55 22 31 03 51 9.9 8.4 84 1346-1653 >90 SAT SEP 04 18 45 19 23 19 50 21 41 04 53 05 19 05 57 17 57 22 35 03 55 9.9 7.6 76 1439-2123 >90 SUN SEP 05 18 44 19 22 19 49 22 28 04 53 05 19 05 57 18 00 22 39 03 59 9.9 6.8 68 1534-2444 >90 MON SEP 06 18 43 19 21 19 48 23 17 04 53 05 19 05 57 18 03 22 43 04 03 10.0 6.0 60 1629-2646 >90 TUE SEP 07 18 43 19 21 19 47 00 09 04 54 05 20 05 58 18 07 22 47 04 08 10.0 5.2 51 1728-2706 >90 WED SEP 08 18 42 19 20 19 46 01 02 04 54 05 20 05 58 18 10 22 51 04 12 10.0 4.3 43 1818-2649 81 THU SEP 09 18 41 19 19 19 45 14 28 01 56 04 54 05 20 05 58 18 13 22 55 04 16 10.0 3.4 33 1911-2502 71 FRI SEP 10 18 40 19 18 19 44 15 12 02 48 04 54 05 20 05 58 18 16 22 59 04 20 10.0 2.5 25 2001-2206 60 SAT SEP 11 18 39 19 17 19 43 15 52 03 39 04 55 05 21 05 59 18 19 23 03 04 25 10.1 1.7 16 2049-1815 50 SUN SEP 12 18 38 19 16 19 42 16 29 04 30 04 55 05 21 05 59 18 22 23 07 04 29 10.1 0.8 8 2136-1340 40 MON SEP 13 18 37 19 15 19 41 17 03 05 19 04 55 05 21 05 59 18 25 23 11 04 33 10.1 0.0 0 2220-0832 31 TUE SEP 14 18 36 19 14 19 40 17 35 06 08 04 56 05 21 05 59 18 28 23 15 04 37 10.1 0.0 0 2304-0303 23 WED SEP 15 18 35 19 13 19 39 18 08 06 57 04 56 05 22 05 59 18 31 23 19 04 41 10.1 0.0 0 2349 0236 19 THU SEP 16 18 34 19 12 19 38 18 41 04 56 05 22 06 00 18 34 23 23 04 45 10.2 0.0 0 0034 0813 21 FRI SEP 17 18 33 19 11 19 37 19 16 04 56 05 22 06 00 18 37 23 26 04 49 10.2 0.1 0 0121 1334 28 SAT SEP 18 18 32 19 10 19 36 19 54 04 57 05 22 06 00 18 40 23 30 04 53 10.2 0.7 7 0212 1823 38 SUN SEP 19 18 32 19 09 19 35 20 36 04 57 05 23 06 00 18 43 23 34 04 58 10.2 1.5 14 0305 2222 49 MON SEP 20 18 31 19 08 19 34 21 25 04 57 05 23 06 00 18 46 23 38 05 02 10.2 2.3 22 0402 2513 61 TUE SEP 21 18 30 19 07 19 33 22 19 04 57 05 23 06 01 18 48 23 42 05 06 10.3 3.2 31 0502 2638 73 WED SEP 22 18 29 19 06 19 32 23 19 04 58 05 23 06 01 18 51 23 46 05 10 10.3 4.2 41 0603 2624 85 THU SEP 23 18 28 19 05 19 31 00 23 04 58 05 23 06 01 18 54 23 50 05 14 10.3 5.3 51 0705 2434 >90 FRI SEP 24 18 27 19 05 19 30 01 29 14 31 04 58 05 24 06 01 18 58 23 54 05 19 10.3 6.4 62 0805 2107 >90 SAT SEP 25 18 26 19 04 19 29 02 33 15 20 04 58 05 24 06 01 19 01 23 58 05 23 10.3 7.5 72 0903 1620 >90 SUN SEP 26 18 25 19 03 19 28 03 37 16 05 04 59 05 24 06 02 19 04 00 02 05 27 10.4 8.6 82 0958 1034 >90 MON SEP 27 18 24 19 02 19 27 04 39 16 47 04 59 05 24 06 02 19 07 00 06 05 31 10.4 9.6 92 1050 0413 >90 TUE SEP 28 18 23 19 01 19 26 05 39 17 27 04 59 05 25 06 02 19 10 00 10 05 36 10.4 10.4 100 1142-0220 >90 WED SEP 29 18 23 19 00 19 26 06 39 18 07 04 59 05 25 06 02 19 13 00 14 05 40 10.4 10.4 100 1234-0842 >90 THU SEP 30 18 22 18 59 19 25 18 48 05 00 05 25 06 03 19 16 00 18 05 44 10.4 10.4 100 1326-1430 >90 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Sep 07 18:31 UT AND FOLLOWING MORNING. FULL MOON Sep 15 23:04 UT All dates and times are zone HST LAST QUARTER Sep 23 10:20 UT in upper table (except sid time). NEW MOON Sep 30 02:36 UT