KECK OBSERVATORY CALENDAR FOR 2031 -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 2031 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 SUN JUN 01 19 08 19 50 20 20 15 16 03 22 04 19 04 49 05 31 12 40 16 21 20 41 8.0 0.9 11 1345-1413 51 MON JUN 02 19 08 19 51 20 20 16 16 04 12 04 19 04 49 05 31 12 44 16 25 20 44 8.0 0.1 1 1443-1748 45 TUE JUN 03 19 09 19 51 20 21 17 19 05 08 04 19 04 49 05 31 12 49 16 29 20 48 8.0 0.0 0 1544-2024 42 WED JUN 04 19 09 19 51 20 21 18 23 06 09 04 19 04 49 05 31 12 53 16 33 20 52 8.0 0.0 0 1649-2139 42 THU JUN 05 19 10 19 52 20 22 19 27 04 19 04 49 05 31 12 58 16 37 20 56 7.9 0.0 0 1755-2122 45 FRI JUN 06 19 10 19 52 20 22 20 27 04 19 04 49 05 31 13 02 16 41 21 00 7.9 0.1 1 1859-1934 52 SAT JUN 07 19 10 19 53 20 23 21 22 04 19 04 49 05 31 13 07 16 44 21 04 7.9 1.0 12 2001-1627 60 SUN JUN 08 19 11 19 53 20 23 22 13 04 19 04 49 05 31 13 11 16 48 21 08 7.9 1.8 23 2100-1223 70 MON JUN 09 19 11 19 53 20 23 22 59 04 19 04 49 05 31 13 15 16 52 21 12 7.9 2.6 32 2155-0740 79 TUE JUN 10 19 11 19 54 20 24 23 42 04 19 04 49 05 31 13 20 16 56 21 16 7.9 3.3 41 2247-0239 89 WED JUN 11 19 12 19 54 20 24 00 22 04 19 04 49 05 31 13 24 17 00 21 20 7.9 4.0 50 2339 0204 >90 THU JUN 12 19 12 19 55 20 25 01 02 04 19 04 49 05 31 13 29 17 04 21 24 7.9 4.6 58 0028 0640 >90 FRI JUN 13 19 12 19 55 20 25 01 42 14 11 04 19 04 49 05 31 13 33 17 08 21 28 7.9 5.3 66 0117 1049 >90 SAT JUN 14 19 13 19 55 20 25 02 24 15 04 04 19 04 49 05 31 13 36 17 12 21 32 7.9 6.0 75 0206 1422 >90 SUN JUN 15 19 13 19 56 20 26 03 06 15 57 04 19 04 49 05 32 13 41 17 16 21 36 7.9 6.7 84 0256 1712 >90 MON JUN 16 19 13 19 56 20 26 03 51 16 49 04 19 04 49 05 32 13 45 17 20 21 40 7.9 7.4 94 0346 1912 >90 TUE JUN 17 19 13 19 56 20 26 04 39 17 41 04 19 04 49 05 32 13 49 17 24 21 44 7.9 7.9 100 0437 2018 >90 WED JUN 18 19 14 19 56 20 27 05 27 18 31 04 19 04 49 05 32 13 54 17 28 21 48 7.9 7.9 100 0527 2027 >90 THU JUN 19 19 14 19 57 20 27 06 17 19 18 04 19 04 50 05 32 13 58 17 32 21 51 7.9 7.9 100 0617 1941 >90 FRI JUN 20 19 14 19 57 20 27 20 03 04 20 04 50 05 32 14 02 17 36 21 56 7.9 7.9 100 0706 1804 >90 SAT JUN 21 19 14 19 57 20 27 20 45 04 20 04 50 05 33 14 06 17 40 22 00 7.9 7.6 96 0754 1540 >90 SUN JUN 22 19 15 19 57 20 28 21 24 04 20 04 50 05 33 14 11 17 44 22 04 7.9 6.9 88 0841 1236 >90 MON JUN 23 19 15 19 58 20 28 22 02 04 20 04 50 05 33 14 15 17 48 22 08 7.9 6.3 80 0926 0900 >90 TUE JUN 24 19 15 19 58 20 28 22 38 04 21 04 51 05 33 14 19 17 51 22 13 7.9 5.7 72 1012 0459 >90 WED JUN 25 19 15 19 58 20 28 23 15 04 21 04 51 05 34 14 23 17 55 22 17 7.9 5.1 64 1057 0040 >90 THU JUN 26 19 15 19 58 20 28 23 52 04 21 04 51 05 34 14 27 17 59 22 21 7.9 4.5 56 1144-0349 >90 FRI JUN 27 19 16 19 58 20 28 00 31 04 21 04 52 05 34 14 31 18 03 22 25 7.9 3.8 48 1233-0812 86 SAT JUN 28 19 16 19 58 20 28 01 13 04 22 04 52 05 35 14 35 18 07 22 30 7.9 3.2 39 1324-1229 77 SUN JUN 29 19 16 19 58 20 28 02 00 04 22 04 52 05 35 14 39 18 11 22 34 7.9 2.4 29 1418-1619 68 MON JUN 30 19 16 19 58 20 29 15 00 02 51 04 22 04 53 05 35 14 44 18 15 22 38 7.9 1.5 19 1516-1918 59 ONE LINE REFERS TO EVENING DATE FULL MOON Jun 05 11:58 UT AND FOLLOWING MORNING. LAST QUARTER Jun 12 02:21 UT All dates and times are zone HST NEW MOON Jun 19 22:23 UT in upper table (except sid time). FIRST QUARTER Jun 28 00:19 UT