KECK OBSERVATORY CALENDAR FOR 2037 -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 2037 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 SAT AUG 01 19 10 19 50 20 19 22 39 04 38 05 06 05 47 16 42 20 23 01 02 8.3 2.3 28 0122 0222 75 SUN AUG 02 19 09 19 50 20 18 23 15 04 39 05 07 05 47 16 45 20 27 01 07 8.4 3.0 35 0207 0636 83 MON AUG 03 19 09 19 49 20 17 23 52 04 39 05 07 05 48 16 48 20 31 01 11 8.4 3.6 42 0249 1016 >90 TUE AUG 04 19 08 19 48 20 17 00 33 04 40 05 08 05 48 16 52 20 35 01 16 8.4 4.3 50 0342 1416 >90 WED AUG 05 19 07 19 48 20 16 01 17 14 05 04 40 05 08 05 48 16 55 20 39 01 20 8.4 5.0 59 0434 1718 >90 THU AUG 06 19 07 19 47 20 15 02 06 15 01 04 41 05 09 05 49 16 58 20 43 01 25 8.4 5.8 69 0528 1930 >90 FRI AUG 07 19 06 19 46 20 14 03 00 15 59 04 41 05 09 05 49 17 00 20 47 01 29 8.4 6.8 80 0626 2040 >90 SAT AUG 08 19 06 19 46 20 14 04 00 16 58 04 42 05 09 05 50 17 04 20 51 01 34 8.5 7.8 91 0725 2034 >90 SUN AUG 09 19 05 19 45 20 13 05 03 17 56 04 42 05 10 05 50 17 07 20 55 01 38 8.5 8.5 100 0826 1907 >90 MON AUG 10 19 05 19 44 20 12 06 09 18 51 04 43 05 10 05 50 17 10 20 59 01 43 8.5 8.5 100 0926 1621 >90 TUE AUG 11 19 04 19 44 20 11 19 43 04 43 05 11 05 51 17 13 21 03 01 47 8.5 8.5 100 1025 1228 >90 WED AUG 12 19 03 19 43 20 11 20 32 04 44 05 11 05 51 17 17 21 07 01 52 8.6 8.2 95 1123 0745 >90 THU AUG 13 19 03 19 42 20 10 21 18 04 44 05 12 05 51 17 20 21 11 01 56 8.6 7.4 86 1218 0234 >90 FRI AUG 14 19 02 19 41 20 09 22 03 04 44 05 12 05 51 17 23 21 15 01 59 8.6 6.7 77 1312-0244 >90 SAT AUG 15 19 01 19 41 20 08 22 47 04 45 05 12 05 52 17 26 21 19 02 04 8.6 6.0 69 1406-0748 >90 SUN AUG 16 19 01 19 40 20 07 23 31 04 45 05 13 05 52 17 29 21 23 02 08 8.6 5.2 60 1500-1223 >90 MON AUG 17 19 00 19 39 20 06 00 17 04 46 05 13 05 52 17 32 21 27 02 13 8.7 4.5 51 1555-1605 89 TUE AUG 18 18 59 19 38 20 05 01 05 04 46 05 13 05 53 17 35 21 30 02 17 8.7 3.7 42 1649-1910 79 WED AUG 19 18 58 19 37 20 05 14 11 01 54 04 47 05 14 05 53 17 39 21 34 02 22 8.7 2.9 33 1743-2108 70 THU AUG 20 18 58 19 37 20 04 15 05 02 46 04 47 05 14 05 53 17 42 21 38 02 26 8.7 2.0 23 1838-2156 61 FRI AUG 21 18 57 19 36 20 03 15 57 03 38 04 48 05 15 05 54 17 45 21 42 02 31 8.8 1.2 13 1932-2138 52 SAT AUG 22 18 56 19 35 20 02 16 46 04 30 04 48 05 15 05 54 17 48 21 46 02 35 8.8 0.3 3 2025-2017 45 SUN AUG 23 18 55 19 34 20 01 17 31 05 22 04 48 05 15 05 54 17 51 21 50 02 39 8.8 0.0 0 2117-1802 39 MON AUG 24 18 54 19 33 20 00 18 13 06 12 04 49 05 16 05 54 17 53 21 54 02 44 8.8 0.0 0 2206-1500 35 TUE AUG 25 18 54 19 32 19 59 18 52 04 49 05 16 05 55 17 56 21 58 02 48 8.8 0.0 0 2253-1124 34 WED AUG 26 18 53 19 32 19 58 19 29 04 49 05 16 05 55 17 59 22 02 02 52 8.8 0.0 0 2339-0723 36 THU AUG 27 18 52 19 31 19 57 20 05 04 50 05 16 05 55 18 02 22 06 02 57 8.9 0.1 1 0024-0306 41 FRI AUG 28 18 51 19 30 19 56 20 39 04 50 05 17 05 55 18 05 22 10 03 01 8.9 0.7 8 0109 0116 47 SAT AUG 29 18 50 19 29 19 55 21 14 04 51 05 17 05 56 18 08 22 14 03 06 8.9 1.3 14 0153 0535 55 SUN AUG 30 18 50 19 28 19 54 21 50 04 51 05 17 05 56 18 11 22 18 03 10 9.0 1.9 21 0239 0942 64 MON AUG 31 18 49 19 27 19 53 22 29 04 51 05 18 05 56 18 14 22 22 03 14 9.0 2.6 28 0327 1325 73 ONE LINE REFERS TO EVENING DATE LAST QUARTER Aug 04 07:51 UT AND FOLLOWING MORNING. NEW MOON Aug 11 10:40 UT All dates and times are zone HST FIRST QUARTER Aug 18 00:59 UT in upper table (except sid time). FULL MOON Aug 25 19:08 UT