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 SUN MAY 01 18 55 19 35 20 03 05 09 17 56 04 35 05 03 05 42 09 52 14 18 19 22 9.5 9.5 100 0154 1525 >90 MON MAY 02 18 56 19 36 20 03 05 51 18 48 04 34 05 02 05 42 09 57 14 22 19 25 9.4 9.4 100 0242 1838 >90 TUE MAY 03 18 56 19 36 20 04 06 36 19 41 04 34 05 01 05 41 10 01 14 26 19 28 9.4 9.3 99 0332 2102 >90 WED MAY 04 18 56 19 36 20 04 20 35 04 33 05 01 05 41 10 05 14 30 19 32 9.4 8.4 89 0425 2229 >90 THU MAY 05 18 57 19 37 20 05 21 29 04 32 05 00 05 40 10 10 14 34 19 35 9.4 7.5 80 0519 2249 >90 FRI MAY 06 18 57 19 37 20 05 22 20 04 31 04 59 05 40 10 14 14 38 19 38 9.4 6.6 70 0614 2158 >90 SAT MAY 07 18 58 19 38 20 06 23 10 04 31 04 59 05 39 10 19 14 42 19 41 9.4 5.8 62 0709 1955 >90 SUN MAY 08 18 58 19 38 20 06 23 56 04 30 04 58 05 39 10 23 14 46 19 44 9.3 5.0 53 0803 1644 >90 MON MAY 09 18 58 19 39 20 07 00 40 04 29 04 58 05 38 10 28 14 50 19 48 9.3 4.3 46 0857 1231 84 TUE MAY 10 18 59 19 39 20 08 01 22 04 29 04 57 05 38 10 32 14 53 19 51 9.3 3.6 38 0950 0736 74 WED MAY 11 18 59 19 40 20 08 02 04 04 28 04 57 05 37 10 37 14 57 19 55 9.3 2.9 31 1042 0205 65 THU MAY 12 19 00 19 40 20 09 14 09 02 46 04 28 04 56 05 37 10 41 15 01 19 58 9.3 2.2 23 1136-0341 56 FRI MAY 13 19 00 19 41 20 09 15 09 03 30 04 27 04 55 05 36 10 46 15 05 20 01 9.2 1.4 15 1231-0923 48 SAT MAY 14 19 00 19 41 20 10 16 11 04 17 04 26 04 55 05 36 10 50 15 09 20 05 9.2 0.6 6 1328-1438 42 SUN MAY 15 19 01 19 42 20 10 17 16 05 09 04 26 04 54 05 35 10 54 15 13 20 08 9.2 0.0 0 1428-1901 40 MON MAY 16 19 01 19 42 20 11 18 20 06 04 04 25 04 54 05 35 10 58 15 17 20 12 9.2 0.0 0 1530-2210 42 TUE MAY 17 19 02 19 43 20 12 19 25 04 25 04 54 05 35 11 03 15 21 20 16 9.2 0.0 0 1634-2348 47 WED MAY 18 19 02 19 43 20 12 20 26 04 24 04 53 05 34 11 07 15 25 20 19 9.2 0.7 7 1736-2352 54 THU MAY 19 19 03 19 44 20 13 21 22 04 24 04 53 05 34 11 12 15 29 20 23 9.1 1.6 17 1836-2228 62 FRI MAY 20 19 03 19 44 20 13 22 12 04 23 04 52 05 34 11 16 15 33 20 26 9.1 2.5 27 1933-1952 71 SAT MAY 21 19 03 19 45 20 14 22 56 04 23 04 52 05 33 11 21 15 37 20 30 9.1 3.2 34 2025-1618 80 SUN MAY 22 19 04 19 45 20 14 23 37 04 23 04 52 05 33 11 25 15 41 20 34 9.1 3.9 42 2113-1207 88 MON MAY 23 19 04 19 46 20 15 00 13 04 22 04 51 05 33 11 30 15 45 20 37 9.1 4.5 48 2201-0745 >90 TUE MAY 24 19 05 19 46 20 15 00 48 04 22 04 51 05 33 11 34 15 49 20 40 9.1 5.0 55 2245-0305 >90 WED MAY 25 19 05 19 47 20 16 01 22 04 21 04 51 05 32 11 39 15 53 20 44 9.1 5.6 61 2328 0137 >90 THU MAY 26 19 06 19 47 20 17 01 55 14 12 04 21 04 50 05 32 11 43 15 57 20 47 9.1 6.1 67 0012 0611 >90 FRI MAY 27 19 06 19 48 20 17 02 30 15 01 04 21 04 50 05 32 11 48 16 00 20 51 9.0 6.7 74 0056 1031 >90 SAT MAY 28 19 06 19 48 20 18 03 07 15 50 04 20 04 50 05 32 11 52 16 04 20 55 9.0 7.3 80 0142 1427 >90 SUN MAY 29 19 07 19 49 20 18 03 48 16 41 04 20 04 50 05 32 11 57 16 08 20 59 9.0 8.0 88 0229 1750 >90 MON MAY 30 19 07 19 49 20 19 04 32 17 34 04 20 04 49 05 31 12 01 16 12 21 02 9.0 8.7 96 0319 2027 >90 TUE MAY 31 19 08 19 50 20 19 05 21 18 29 04 20 04 49 05 31 12 06 16 16 21 06 9.0 9.0 100 0412 2209 >90 ONE LINE REFERS TO EVENING DATE NEW MOON May 03 06:52 UT AND FOLLOWING MORNING. FIRST QUARTER May 10 20:32 UT All dates and times are zone HST FULL MOON May 17 11:10 UT in upper table (except sid time). LAST QUARTER May 24 18:52 UT