KECK OBSERVATORY CALENDAR FOR 2011 -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 2011 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 MON AUG 01 19 10 19 50 20 19 20 42 04 38 05 06 05 47 16 10 20 21 01 28 9.3 8.4 90 1056 0046 >90 TUE AUG 02 19 09 19 50 20 18 21 25 04 39 05 07 05 47 16 14 20 25 01 32 9.3 7.7 82 1149-0454 >90 WED AUG 03 19 09 19 49 20 17 22 08 04 39 05 07 05 48 16 17 20 29 01 36 9.3 7.0 75 1243-1018 >90 THU AUG 04 19 08 19 48 20 17 22 54 04 40 05 08 05 48 16 20 20 33 01 41 9.3 6.2 66 1338-1509 >90 FRI AUG 05 19 07 19 48 20 16 23 42 04 40 05 08 05 48 16 24 20 36 01 45 9.3 5.4 58 1434-1907 >90 SAT AUG 06 19 07 19 47 20 15 00 34 04 41 05 09 05 49 16 27 20 40 01 50 9.4 4.6 48 1533-2153 86 SUN AUG 07 19 06 19 46 20 14 01 29 04 41 05 09 05 49 16 30 20 44 01 54 9.4 3.7 39 1632-2329 75 MON AUG 08 19 06 19 46 20 14 14 50 02 26 04 42 05 09 05 50 16 34 20 48 01 58 9.4 2.7 28 1731-2341 65 TUE AUG 09 19 05 19 45 20 13 15 45 03 24 04 42 05 10 05 50 16 37 20 52 02 03 9.4 1.8 18 1829-2229 55 WED AUG 10 19 05 19 44 20 12 16 35 04 21 04 43 05 10 05 50 16 39 20 56 02 07 9.4 0.8 8 1925-2006 46 THU AUG 11 19 04 19 44 20 11 17 21 05 16 04 43 05 11 05 51 16 43 21 00 02 12 9.4 0.0 0 2019-1644 38 FRI AUG 12 19 03 19 43 20 11 18 03 06 09 04 44 05 11 05 51 16 46 21 04 02 16 9.5 0.0 0 2109-1238 32 SAT AUG 13 19 03 19 42 20 10 18 41 04 44 05 12 05 51 16 49 21 08 02 21 9.5 0.0 0 2157-0804 30 SUN AUG 14 19 02 19 41 20 09 19 17 04 44 05 12 05 51 16 52 21 12 02 25 9.5 0.0 0 2243-0317 32 MON AUG 15 19 01 19 41 20 08 19 52 04 45 05 12 05 52 16 56 21 16 02 29 9.5 0.2 1 2328 0133 37 TUE AUG 16 19 01 19 40 20 07 20 26 04 45 05 13 05 52 16 59 21 20 02 34 9.6 0.8 8 0013 0614 44 WED AUG 17 19 00 19 39 20 06 21 01 04 46 05 13 05 52 17 02 21 24 02 38 9.6 1.4 14 0058 1036 52 THU AUG 18 18 59 19 38 20 06 21 37 04 46 05 13 05 53 17 05 21 28 02 42 9.6 2.0 20 0144 1432 61 FRI AUG 19 18 58 19 38 20 05 22 16 04 47 05 14 05 53 17 09 21 32 02 47 9.6 2.6 27 0232 1752 70 SAT AUG 20 18 58 19 37 20 04 22 58 04 47 05 14 05 53 17 12 21 36 02 50 9.6 3.4 34 0321 2026 80 SUN AUG 21 18 57 19 36 20 03 23 44 04 48 05 15 05 54 17 15 21 40 02 55 9.6 4.1 42 0411 2155 90 MON AUG 22 18 56 19 35 20 02 00 35 04 48 05 15 05 54 17 18 21 43 02 59 9.7 5.0 51 0507 2244 >90 TUE AUG 23 18 55 19 34 20 01 01 29 14 36 04 48 05 15 05 54 17 21 21 47 03 03 9.7 5.9 61 0602 2211 >90 WED AUG 24 18 54 19 33 20 00 02 27 15 28 04 49 05 16 05 54 17 24 21 51 03 08 9.7 6.9 71 0658 2025 >90 THU AUG 25 18 54 19 32 19 59 03 27 16 18 04 49 05 16 05 55 17 27 21 55 03 12 9.7 7.9 81 0753 1726 >90 FRI AUG 26 18 53 19 32 19 58 04 29 17 05 04 49 05 16 05 55 17 31 21 59 03 16 9.7 9.0 91 0849 1324 >90 SAT AUG 27 18 52 19 31 19 57 05 30 17 51 04 50 05 16 05 55 17 33 22 03 03 20 9.8 9.8 100 0943 0829 >90 SUN AUG 28 18 51 19 30 19 56 06 32 18 35 04 50 05 17 05 55 17 36 22 07 03 25 9.8 9.8 100 1037 0259 >90 MON AUG 29 18 50 19 29 19 55 19 19 04 51 05 17 05 56 17 39 22 11 03 29 9.8 9.8 100 1131-0246 >90 TUE AUG 30 18 50 19 28 19 54 20 03 04 51 05 17 05 56 17 42 22 15 03 33 9.8 9.2 94 1226-0824 >90 WED AUG 31 18 49 19 27 19 53 20 49 04 51 05 18 05 56 17 45 22 19 03 38 9.8 8.5 86 1322-1332 >90 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Aug 06 11:08 UT AND FOLLOWING MORNING. FULL MOON Aug 13 18:55 UT All dates and times are zone HST LAST QUARTER Aug 21 21:54 UT in upper table (except sid time). NEW MOON Aug 29 03:02 UT