KECK OBSERVATORY CALENDAR FOR 2012 -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 2012 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 WED AUG 01 19 09 19 50 20 18 18 34 06 44 04 39 05 07 05 47 16 41 20 24 01 03 8.4 0.0 0 2101-1233 34 THU AUG 02 19 09 19 49 20 17 19 18 04 39 05 07 05 48 16 44 20 28 01 07 8.4 0.0 0 2154-0758 35 FRI AUG 03 19 08 19 48 20 17 19 59 04 40 05 08 05 48 16 48 20 32 01 12 8.4 0.0 0 2245-0309 40 SAT AUG 04 19 07 19 48 20 16 20 38 04 40 05 08 05 48 16 51 20 36 01 16 8.4 0.4 4 2334 0140 47 SUN AUG 05 19 07 19 47 20 15 21 15 04 41 05 09 05 49 16 54 20 39 01 21 8.4 1.0 11 0021 0615 55 MON AUG 06 19 06 19 46 20 14 21 53 04 41 05 09 05 49 16 57 20 43 01 25 8.4 1.6 19 0109 1025 64 TUE AUG 07 19 06 19 46 20 14 22 32 04 42 05 09 05 50 17 01 20 47 01 30 8.5 2.3 27 0156 1403 74 WED AUG 08 19 05 19 45 20 13 23 12 04 42 05 10 05 50 17 04 20 51 01 34 8.5 3.0 35 0244 1700 83 THU AUG 09 19 05 19 44 20 12 23 54 04 43 05 10 05 50 17 07 20 55 01 39 8.5 3.7 43 0328 1845 >90 FRI AUG 10 19 04 19 44 20 11 00 39 04 43 05 11 05 51 17 10 20 59 01 43 8.5 4.5 52 0424 2036 >90 SAT AUG 11 19 03 19 43 20 11 01 28 14 32 04 44 05 11 05 51 17 13 21 03 01 48 8.6 5.3 61 0515 2102 >90 SUN AUG 12 19 03 19 42 20 10 02 18 15 21 04 44 05 12 05 51 17 16 21 07 01 52 8.6 6.1 71 0606 2028 >90 MON AUG 13 19 02 19 41 20 09 03 12 16 09 04 44 05 12 05 51 17 19 21 11 01 56 8.6 7.1 82 0658 1856 >90 TUE AUG 14 19 01 19 41 20 08 04 06 16 55 04 45 05 12 05 52 17 22 21 15 02 01 8.6 8.0 92 0749 1627 >90 WED AUG 15 19 01 19 40 20 07 05 01 17 39 04 45 05 13 05 52 17 25 21 19 02 05 8.6 8.6 100 0840 1308 >90 THU AUG 16 19 00 19 39 20 06 05 57 18 21 04 46 05 13 05 52 17 28 21 23 02 10 8.7 8.7 100 0930 0906 >90 FRI AUG 17 18 59 19 38 20 06 06 53 19 02 04 46 05 13 05 53 17 32 21 27 02 14 8.7 8.7 100 1020 0431 >90 SAT AUG 18 18 58 19 38 20 05 19 44 04 47 05 14 05 53 17 35 21 31 02 18 8.7 8.7 100 1111-0023 >90 SUN AUG 19 18 58 19 37 20 04 20 25 04 47 05 14 05 53 17 38 21 35 02 22 8.7 8.4 95 1202-0521 >90 MON AUG 20 18 57 19 36 20 03 21 08 04 48 05 15 05 54 17 41 21 39 02 27 8.8 7.7 87 1255-1007 >90 TUE AUG 21 18 56 19 35 20 02 21 55 04 48 05 15 05 54 17 44 21 43 02 31 8.8 6.9 78 1350-1425 >90 WED AUG 22 18 55 19 34 20 01 22 44 04 48 05 15 05 54 17 47 21 46 02 35 8.8 6.1 69 1446-1756 >90 THU AUG 23 18 54 19 33 20 00 23 37 04 49 05 16 05 54 17 50 21 50 02 40 8.8 5.2 58 1545-2025 >90 FRI AUG 24 18 54 19 32 19 59 00 34 04 49 05 16 05 55 17 53 21 54 02 44 8.8 4.2 48 1646-2135 86 SAT AUG 25 18 53 19 32 19 58 01 33 04 49 05 16 05 55 17 56 21 58 02 48 8.8 3.3 36 1747-2135 74 SUN AUG 26 18 52 19 31 19 57 14 46 02 33 04 50 05 16 05 55 17 59 22 02 02 53 8.9 2.3 25 1847-2008 62 MON AUG 27 18 51 19 30 19 56 15 39 03 33 04 50 05 17 05 55 18 02 22 06 02 57 8.9 1.3 14 1945-1731 51 TUE AUG 28 18 50 19 29 19 55 16 28 04 32 04 51 05 17 05 56 18 04 22 10 03 02 8.9 0.3 3 2041-1355 40 WED AUG 29 18 50 19 28 19 54 17 12 05 29 04 51 05 17 05 56 18 07 22 14 03 06 9.0 0.0 0 2134-0938 31 THU AUG 30 18 49 19 27 19 53 17 54 06 24 04 51 05 18 05 56 18 10 22 18 03 10 9.0 0.0 0 2225-0457 25 FRI AUG 31 18 48 19 26 19 53 18 33 04 52 05 18 05 56 18 14 22 22 03 15 9.0 0.0 0 2315-0009 24 ONE LINE REFERS TO EVENING DATE FULL MOON Aug 02 03:27 UT AND FOLLOWING MORNING. LAST QUARTER Aug 09 18:56 UT All dates and times are zone HST NEW MOON Aug 17 15:53 UT in upper table (except sid time). FIRST QUARTER Aug 24 13:54 UT FULL MOON Aug 31 13:57 UT