KECK OBSERVATORY CALENDAR FOR 2025 -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 2025 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 TUE JUL 01 19 16 19 58 20 29 00 04 04 23 04 53 05 35 14 18 18 21 23 15 8.9 4.8 54 1223-0338 >90 WED JUL 02 19 16 19 59 20 29 00 36 04 23 04 53 05 36 14 23 18 25 23 19 8.9 4.3 48 1301-0938 85 THU JUL 03 19 16 19 59 20 29 01 09 04 24 04 54 05 36 14 27 18 29 23 24 8.9 3.8 42 1345-1454 78 FRI JUL 04 19 16 19 59 20 29 01 44 04 24 04 54 05 36 14 31 18 33 23 28 8.9 3.2 35 1430-1940 71 SAT JUL 05 19 16 19 59 20 28 14 50 02 24 04 24 04 54 05 37 14 35 18 37 23 31 8.9 2.5 28 1519-2340 65 SUN JUL 06 19 16 19 58 20 28 15 43 03 08 04 25 04 55 05 37 14 38 18 41 23 36 8.9 1.8 19 1610-2644 59 MON JUL 07 19 16 19 58 20 28 16 38 03 57 04 25 04 55 05 37 14 42 18 45 23 40 8.9 1.0 10 1705-2838 54 TUE JUL 08 19 16 19 58 20 28 17 33 04 51 04 26 04 56 05 38 14 46 18 48 23 45 9.0 0.1 0 1802-2908 50 WED JUL 09 19 16 19 58 20 28 18 27 05 48 04 26 04 56 05 38 14 50 18 52 23 49 9.0 0.0 0 1859-2809 48 THU JUL 10 19 16 19 58 20 28 19 17 06 47 04 27 04 56 05 39 14 54 18 56 23 53 9.0 0.0 0 1956-2539 48 FRI JUL 11 19 16 19 58 20 28 20 04 04 27 04 57 05 39 14 58 19 00 23 58 9.0 0.1 1 2051-2148 50 SAT JUL 12 19 16 19 58 20 27 20 46 04 28 04 57 05 39 15 02 19 04 00 02 9.0 0.8 8 2144-1649 54 SUN JUL 13 19 16 19 58 20 27 21 25 04 28 04 58 05 40 15 06 19 08 00 07 9.0 1.4 16 2235-1059 59 MON JUL 14 19 15 19 57 20 27 22 02 04 29 04 58 05 40 15 08 19 12 00 11 9.0 2.1 23 2324-0437 67 TUE JUL 15 19 15 19 57 20 27 22 38 04 29 04 59 05 40 15 12 19 16 00 16 9.0 2.7 29 0013 0200 75 WED JUL 16 19 15 19 57 20 26 23 15 04 30 04 59 05 41 15 16 19 20 00 20 9.0 3.3 36 0102 0832 83 THU JUL 17 19 15 19 57 20 26 23 55 04 30 05 00 05 41 15 20 19 24 00 25 9.0 4.0 43 0150 1414 >90 FRI JUL 18 19 15 19 56 20 26 00 39 04 31 05 00 05 42 15 23 19 28 00 29 9.1 4.7 52 0250 2005 >90 SAT JUL 19 19 14 19 56 20 25 01 28 14 38 04 31 05 00 05 42 15 27 19 32 00 33 9.1 5.5 61 0349 2417 >90 SUN JUL 20 19 14 19 56 20 25 02 24 15 44 04 32 05 01 05 42 15 31 19 36 00 38 9.1 6.5 71 0451 2657 >90 MON JUL 21 19 14 19 55 20 24 03 26 16 51 04 32 05 01 05 43 15 34 19 40 00 42 9.1 7.5 82 0555 2749 >90 TUE JUL 22 19 14 19 55 20 24 04 31 17 53 04 33 05 02 05 43 15 38 19 44 00 46 9.1 8.6 94 0658 2649 >90 WED JUL 23 19 13 19 55 20 24 05 36 18 49 04 33 05 02 05 44 15 42 19 48 00 50 9.1 9.1 100 0759 2407 >90 THU JUL 24 19 13 19 54 20 23 06 39 19 38 04 34 05 03 05 44 15 45 19 52 00 55 9.2 9.2 100 0855 2004 >90 FRI JUL 25 19 13 19 54 20 23 20 20 04 34 05 03 05 44 15 49 19 55 00 59 9.2 8.7 95 0947 1504 >90 SAT JUL 26 19 12 19 53 20 22 20 57 04 35 05 04 05 45 15 52 19 59 01 04 9.2 8.1 88 1034 0929 >90 SUN JUL 27 19 12 19 53 20 21 21 31 04 35 05 04 05 45 15 56 20 03 01 08 9.2 7.6 82 1120 0338 >90 MON JUL 28 19 11 19 52 20 21 22 03 04 36 05 05 05 46 15 59 20 07 01 13 9.2 7.0 76 1203-0215 >90 TUE JUL 29 19 11 19 52 20 20 22 34 04 37 05 05 05 46 16 03 20 11 01 17 9.2 6.5 70 1246-0758 >90 WED JUL 30 19 10 19 51 20 20 23 07 04 37 05 06 05 46 16 06 20 15 01 22 9.2 6.0 64 1329-1321 >90 THU JUL 31 19 10 19 51 20 19 23 42 04 38 05 06 05 47 16 09 20 19 01 26 9.2 5.4 58 1414-1814 >90 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Jul 02 19:32 UT AND FOLLOWING MORNING. FULL MOON Jul 10 20:38 UT All dates and times are zone HST LAST QUARTER Jul 18 00:38 UT in upper table (except sid time). NEW MOON Jul 24 19:10 UT