KECK OBSERVATORY CALENDAR FOR 2042 -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 2042 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 FRI AUG 01 19 10 19 50 20 19 19 20 04 38 05 06 05 47 16 41 20 23 01 01 8.3 0.0 0 2134-1948 43 SAT AUG 02 19 09 19 50 20 18 20 05 04 39 05 07 05 47 16 44 20 27 01 06 8.4 0.0 0 2230-1402 46 SUN AUG 03 19 09 19 49 20 17 20 46 04 39 05 07 05 48 16 47 20 31 01 10 8.4 0.5 5 2324-0729 51 MON AUG 04 19 08 19 48 20 17 21 25 04 40 05 08 05 48 16 51 20 34 01 15 8.4 1.1 13 0016-0035 58 TUE AUG 05 19 07 19 48 20 16 22 04 04 40 05 08 05 48 16 54 20 38 01 19 8.4 1.8 21 0107 0616 67 WED AUG 06 19 07 19 47 20 15 22 43 04 41 05 09 05 49 16 57 20 42 01 24 8.4 2.5 29 0200 1240 76 THU AUG 07 19 06 19 46 20 14 23 25 04 41 05 09 05 49 17 00 20 46 01 28 8.4 3.2 37 0253 1816 86 FRI AUG 08 19 06 19 46 20 14 00 10 04 42 05 09 05 50 17 04 20 50 01 33 8.5 3.9 46 0350 2250 >90 SAT AUG 09 19 05 19 45 20 13 01 01 14 18 04 42 05 10 05 50 17 07 20 54 01 37 8.5 4.8 56 0449 2557 >90 SUN AUG 10 19 05 19 44 20 12 01 57 15 21 04 43 05 10 05 50 17 09 20 58 01 42 8.5 5.7 67 0549 2730 >90 MON AUG 11 19 04 19 44 20 11 02 55 16 21 04 43 05 11 05 51 17 12 21 02 01 46 8.5 6.7 78 0648 2724 >90 TUE AUG 12 19 03 19 43 20 11 03 55 17 16 04 44 05 11 05 51 17 16 21 06 01 51 8.6 7.7 90 0746 2546 >90 WED AUG 13 19 03 19 42 20 10 04 54 18 05 04 44 05 12 05 51 17 19 21 10 01 55 8.6 8.6 100 0840 2248 >90 THU AUG 14 19 02 19 41 20 09 05 50 18 48 04 44 05 12 05 51 17 22 21 14 01 59 8.6 8.6 100 0931 1847 >90 FRI AUG 15 19 01 19 41 20 08 06 44 19 26 04 45 05 12 05 52 17 25 21 18 02 04 8.6 8.6 100 1018 1401 >90 SAT AUG 16 19 01 19 40 20 07 20 00 04 45 05 13 05 52 17 28 21 22 02 08 8.6 8.6 100 1103 0846 >90 SUN AUG 17 19 00 19 39 20 06 20 32 04 46 05 13 05 52 17 31 21 26 02 12 8.7 8.2 95 1145 0315 >90 MON AUG 18 18 59 19 38 20 05 21 02 04 46 05 13 05 53 17 34 21 30 02 16 8.7 7.7 89 1227-0220 >90 TUE AUG 19 18 58 19 37 20 05 21 33 04 47 05 14 05 53 17 38 21 34 02 21 8.7 7.2 83 1308-0751 >90 WED AUG 20 18 58 19 37 20 04 22 05 04 47 05 14 05 53 17 41 21 38 02 25 8.7 6.7 76 1351-1306 >90 THU AUG 21 18 57 19 36 20 03 22 39 04 48 05 15 05 54 17 44 21 41 02 30 8.8 6.2 70 1436-1757 >90 FRI AUG 22 18 56 19 35 20 02 23 17 04 48 05 15 05 54 17 47 21 45 02 34 8.8 5.5 62 1523-2211 >90 SAT AUG 23 18 55 19 34 20 01 00 00 04 48 05 15 05 54 17 50 21 49 02 38 8.8 4.8 54 1620-2506 >90 SUN AUG 24 18 54 19 33 20 00 00 48 04 49 05 16 05 54 17 53 21 53 02 43 8.8 4.0 45 1710-2751 84 MON AUG 25 18 54 19 32 19 59 14 25 01 43 04 49 05 16 05 55 17 56 21 57 02 47 8.8 3.1 35 1807-2854 74 TUE AUG 26 18 53 19 32 19 58 15 22 02 43 04 49 05 16 05 55 17 59 22 01 02 51 8.8 2.1 23 1908-2815 64 WED AUG 27 18 52 19 31 19 57 16 17 03 46 04 50 05 16 05 55 18 01 22 05 02 56 8.9 1.1 12 2009-2554 54 THU AUG 28 18 51 19 30 19 56 17 09 04 50 04 50 05 17 05 55 18 04 22 09 03 00 8.9 0.0 0 2108-2154 44 FRI AUG 29 18 50 19 29 19 55 17 56 05 54 04 51 05 17 05 56 18 07 22 13 03 05 8.9 0.0 0 2206-1631 36 SAT AUG 30 18 50 19 28 19 54 18 39 06 57 04 51 05 17 05 56 18 10 22 17 03 09 9.0 0.0 0 2302-1004 32 SUN AUG 31 18 49 19 27 19 53 19 20 04 51 05 18 05 56 18 13 22 21 03 13 9.0 0.0 0 2356-0301 33 ONE LINE REFERS TO EVENING DATE FULL MOON Aug 01 17:32 UT AND FOLLOWING MORNING. LAST QUARTER Aug 08 10:36 UT All dates and times are zone HST NEW MOON Aug 15 17:58 UT in upper table (except sid time). FIRST QUARTER Aug 23 21:55 UT FULL MOON Aug 31 02:02 UT