KECK OBSERVATORY CALENDAR FOR 2031 -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 2031 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 16 02 03 49 04 23 04 53 05 35 14 16 18 19 23 13 8.9 1.1 11 1619-2111 50 WED JUL 02 19 16 19 59 20 29 17 05 04 52 04 23 04 53 05 36 14 21 18 23 23 17 8.9 0.0 0 1723-2140 44 THU JUL 03 19 16 19 59 20 29 18 08 05 57 04 24 04 54 05 36 14 25 18 27 23 22 8.9 0.0 0 1829-2036 40 FRI JUL 04 19 16 19 59 20 29 19 07 04 24 04 54 05 36 14 29 18 31 23 26 8.9 0.0 0 1934-1803 41 SAT JUL 05 19 16 19 59 20 28 20 01 04 24 04 54 05 37 14 33 18 35 23 30 8.9 0.0 0 2036-1416 45 SUN JUL 06 19 16 19 58 20 28 20 51 04 25 04 55 05 37 14 36 18 39 23 35 8.9 0.9 9 2134-0939 52 MON JUL 07 19 16 19 58 20 28 21 37 04 25 04 55 05 37 14 40 18 43 23 39 8.9 1.6 18 2230-0438 61 TUE JUL 08 19 16 19 58 20 28 22 20 04 26 04 56 05 38 14 44 18 47 23 43 9.0 2.4 26 2323 0027 70 WED JUL 09 19 16 19 58 20 28 23 01 04 26 04 56 05 38 14 48 18 51 23 47 9.0 3.0 34 0014 0517 80 THU JUL 10 19 16 19 58 20 28 23 42 04 27 04 56 05 39 14 52 18 55 23 51 9.0 3.7 41 0103 0934 89 FRI JUL 11 19 16 19 58 20 28 00 23 04 27 04 57 05 39 14 56 18 59 23 56 9.0 4.4 49 0155 1330 >90 SAT JUL 12 19 16 19 58 20 27 01 06 04 28 04 57 05 39 15 00 19 02 00 00 9.0 5.1 57 0245 1633 >90 SUN JUL 13 19 16 19 58 20 27 01 50 14 45 04 28 04 58 05 40 15 04 19 06 00 05 9.0 5.9 65 0335 1846 >90 MON JUL 14 19 15 19 57 20 27 02 36 15 37 04 29 04 58 05 40 15 07 19 10 00 09 9.0 6.6 73 0426 2005 >90 TUE JUL 15 19 15 19 57 20 27 03 24 16 27 04 29 04 59 05 40 15 11 19 14 00 14 9.0 7.4 82 0516 2029 >90 WED JUL 16 19 15 19 57 20 26 04 14 17 16 04 30 04 59 05 41 15 15 19 18 00 18 9.0 8.3 91 0606 1957 >90 THU JUL 17 19 15 19 57 20 26 05 04 18 01 04 30 05 00 05 41 15 19 19 22 00 23 9.0 9.0 100 0656 1832 >90 FRI JUL 18 19 15 19 56 20 26 05 54 18 44 04 31 05 00 05 42 15 21 19 26 00 27 9.1 9.1 100 0744 1620 >90 SAT JUL 19 19 14 19 56 20 25 06 44 19 24 04 31 05 00 05 42 15 25 19 30 00 31 9.1 9.1 100 0831 1326 >90 SUN JUL 20 19 14 19 56 20 25 20 03 04 32 05 01 05 42 15 29 19 34 00 36 9.1 9.0 98 0917 0959 >90 MON JUL 21 19 14 19 55 20 24 20 40 04 32 05 01 05 43 15 32 19 38 00 40 9.1 8.4 91 1002 0605 >90 TUE JUL 22 19 14 19 55 20 24 21 16 04 33 05 02 05 43 15 36 19 42 00 45 9.1 7.8 85 1047 0153 >90 WED JUL 23 19 13 19 55 20 24 21 53 04 33 05 02 05 44 15 40 19 46 00 49 9.1 7.2 78 1133-0229 >90 THU JUL 24 19 13 19 54 20 23 22 31 04 34 05 03 05 44 15 43 19 50 00 54 9.2 6.5 71 1220-0652 >90 FRI JUL 25 19 13 19 54 20 23 23 11 04 34 05 03 05 44 15 47 19 54 00 58 9.2 5.9 64 1309-1104 >90 SAT JUL 26 19 12 19 53 20 22 23 54 04 35 05 04 05 45 15 50 19 58 01 02 9.2 5.2 56 1400-1453 >90 SUN JUL 27 19 12 19 53 20 21 00 42 04 35 05 04 05 45 15 54 20 02 01 06 9.2 4.4 47 1456-1801 84 MON JUL 28 19 11 19 52 20 21 01 35 04 36 05 05 05 46 15 57 20 06 01 11 9.2 3.5 37 1554-2022 74 TUE JUL 29 19 11 19 52 20 20 14 48 02 33 04 37 05 05 05 46 16 01 20 09 01 15 9.2 2.5 27 1656-2127 63 WED JUL 30 19 10 19 51 20 20 15 49 03 36 04 37 05 06 05 46 16 04 20 13 01 20 9.2 1.5 16 1759-2107 52 THU JUL 31 19 10 19 51 20 19 16 49 04 41 04 38 05 06 05 47 16 08 20 17 01 24 9.2 0.4 4 1904-1918 43 ONE LINE REFERS TO EVENING DATE FULL MOON Jul 04 19:01 UT AND FOLLOWING MORNING. LAST QUARTER Jul 11 11:50 UT All dates and times are zone HST NEW MOON Jul 19 13:41 UT in upper table (except sid time). FIRST QUARTER Jul 27 10:35 UT