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 SAT JAN 01 18 05 18 45 19 12 05 22 15 58 05 39 06 06 06 46 01 09 06 25 12 32 11.3 10.6 93 1709-2411 >90 SUN JAN 02 18 06 18 46 19 13 06 15 16 54 05 39 06 06 06 46 01 14 06 29 12 36 11.3 11.3 100 1806-2331 >90 MON JAN 03 18 06 18 47 19 14 17 51 05 39 06 06 06 47 01 19 06 33 12 40 11.3 11.3 100 1900-2137 >90 TUE JAN 04 18 07 18 47 19 14 18 47 05 40 06 07 06 47 01 23 06 37 12 45 11.3 11.3 100 1952-1843 >90 WED JAN 05 18 07 18 48 19 15 19 41 05 40 06 07 06 47 01 28 06 41 12 49 11.3 10.4 92 2041-1501 >90 THU JAN 06 18 08 18 48 19 15 20 32 05 40 06 07 06 48 01 32 06 45 12 53 11.3 9.6 84 2128-1047 >90 FRI JAN 07 18 09 18 49 19 16 21 22 05 41 06 07 06 48 01 37 06 49 12 57 11.3 8.8 77 2212-0611 >90 SAT JAN 08 18 09 18 50 19 16 22 10 05 41 06 08 06 48 01 42 06 52 13 01 11.3 8.0 70 2256-0124 >90 SUN JAN 09 18 10 18 50 19 17 22 58 05 41 06 08 06 48 01 46 06 56 13 05 11.3 7.2 63 2338 0324 >90 MON JAN 10 18 11 18 51 19 18 23 46 05 41 06 08 06 48 01 50 07 00 13 09 11.3 6.4 56 0022 0806 >90 TUE JAN 11 18 11 18 51 19 18 00 36 05 42 06 08 06 48 01 54 07 04 13 13 11.3 5.5 49 0107 1229 85 WED JAN 12 18 12 18 52 19 19 01 27 05 42 06 09 06 49 01 59 07 08 13 18 11.3 4.7 41 0154 1634 74 THU JAN 13 18 12 18 53 19 19 02 21 05 42 06 09 06 49 02 04 07 12 13 22 11.3 3.8 33 0244 1959 63 FRI JAN 14 18 13 18 53 19 20 03 17 05 42 06 09 06 49 02 08 07 16 13 26 11.3 2.9 25 0338 2233 51 SAT JAN 15 18 14 18 54 19 20 14 08 04 14 05 42 06 09 06 49 02 13 07 20 13 30 11.3 1.9 17 0435 2400 38 SUN JAN 16 18 14 18 54 19 21 15 03 05 11 05 42 06 09 06 49 02 17 07 24 13 34 11.3 1.0 8 0534 2406 26 MON JAN 17 18 15 18 55 19 22 16 03 06 06 05 42 06 09 06 49 02 22 07 28 13 38 11.2 0.1 0 0636 2241 13 TUE JAN 18 18 16 18 55 19 22 17 07 06 58 05 43 06 09 06 49 02 26 07 32 13 42 11.2 0.0 0 0736 1947 01 WED JAN 19 18 16 18 56 19 23 18 11 05 43 06 09 06 49 02 31 07 36 13 46 11.2 0.0 0 0836 1533 15 THU JAN 20 18 17 18 57 19 23 19 15 05 43 06 09 06 49 02 36 07 40 13 50 11.2 0.3 2 0933 1019 29 FRI JAN 21 18 18 18 57 19 24 20 17 05 43 06 09 06 49 02 40 07 44 13 54 11.2 1.3 11 1029 0427 43 SAT JAN 22 18 18 18 58 19 24 21 18 05 43 06 09 06 49 02 45 07 48 13 58 11.2 2.3 20 1123-0138 57 SUN JAN 23 18 19 18 58 19 25 22 19 05 43 06 09 06 49 02 49 07 52 14 02 11.2 3.4 29 1217-0733 71 MON JAN 24 18 19 18 59 19 25 23 19 05 43 06 09 06 49 02 54 07 56 14 06 11.2 4.3 38 1311-1251 84 TUE JAN 25 18 20 18 59 19 26 00 19 05 43 06 09 06 48 02 58 07 59 14 09 11.2 5.3 47 1406-1728 >90 WED JAN 26 18 21 19 00 19 26 01 20 05 43 06 09 06 48 03 03 08 03 14 13 11.2 6.3 56 1503-2058 >90 THU JAN 27 18 21 19 01 19 27 02 19 05 42 06 09 06 48 03 08 08 07 14 17 11.1 7.3 65 1559-2314 >90 FRI JAN 28 18 22 19 01 19 27 03 16 05 42 06 09 06 48 03 11 08 11 14 21 11.1 8.3 74 1657-2412 >90 SAT JAN 29 18 22 19 02 19 28 04 10 14 48 05 42 06 08 06 48 03 16 08 15 14 24 11.1 9.1 82 1753-2350 >90 SUN JAN 30 18 23 19 02 19 28 04 59 15 44 05 42 06 08 06 47 03 20 08 19 14 28 11.1 10.0 89 1847-2216 >90 MON JAN 31 18 24 19 03 19 29 05 45 16 39 05 42 06 08 06 47 03 25 08 23 14 32 11.1 10.7 96 1939-1940 >90 ONE LINE REFERS TO EVENING DATE NEW MOON Jan 04 09:02 UT AND FOLLOWING MORNING. FIRST QUARTER Jan 12 11:32 UT All dates and times are zone HST FULL MOON Jan 19 21:21 UT in upper table (except sid time). LAST QUARTER Jan 26 12:58 UT