KECK OBSERVATORY CALENDAR FOR 2006 -NAUTICAL (computed for altitude 4145.0 m) NAUTICAL(12 deg) TWILIGHT/DAWN MOON DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (12 deg) RA DEC 2006 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 12 12 h h % midnight WED FEB 01 18 24 19 03 19 29 22 06 05 42 06 08 06 47 03 30 08 28 14 37 11.1 8.0 72 0029+0321 THU FEB 02 18 25 19 04 19 30 23 05 05 41 06 08 06 46 03 35 08 32 14 41 11.1 7.0 63 0119+0959 FRI FEB 03 18 25 19 04 19 30 00 04 05 41 06 07 06 46 03 39 08 36 14 44 11.0 6.1 54 0211+1558 SAT FEB 04 18 26 19 05 19 31 01 04 05 41 06 07 06 46 03 44 08 40 14 48 11.0 5.1 45 0303+2059 SUN FEB 05 18 26 19 05 19 31 02 03 05 41 06 07 06 45 03 48 08 44 14 52 11.0 4.1 36 0357+2451 MON FEB 06 18 27 19 06 19 32 03 02 05 40 06 06 06 45 03 53 08 48 14 55 11.0 3.1 27 0453+2723 TUE FEB 07 18 27 19 06 19 32 03 58 05 40 06 06 06 45 03 57 08 52 14 59 11.0 2.1 19 0549+2830 WED FEB 08 18 28 19 06 19 32 04 51 05 40 06 06 06 44 04 01 08 56 15 03 11.0 1.2 11 0645+2810 THU FEB 09 18 28 19 07 19 33 05 39 05 39 06 05 06 44 04 06 08 59 15 05 11.0 0.4 3 0739+2628 FRI FEB 10 18 29 19 07 19 33 16 19 06 21 05 39 06 05 06 43 04 10 09 03 15 09 11.0 0.0 0 0830+2335 SAT FEB 11 18 29 19 08 19 34 17 13 06 59 05 39 06 04 06 43 04 15 09 07 15 12 10.9 0.0 0 0918+1944 SUN FEB 12 18 30 19 08 19 34 18 05 07 34 05 38 06 04 06 42 04 19 09 11 15 16 10.9 0.0 0 1004+1507 MON FEB 13 18 30 19 09 19 35 18 55 05 38 06 03 06 42 04 23 09 15 15 19 10.9 0.0 0 1048+0957 TUE FEB 14 18 31 19 09 19 35 19 43 05 37 06 03 06 41 04 27 09 19 15 23 10.9 0.6 5 1130+0426 WED FEB 15 18 31 19 10 19 35 20 31 05 37 06 02 06 41 04 32 09 23 15 26 10.9 1.4 12 1212-0114 THU FEB 16 18 32 19 10 19 36 21 19 05 36 06 02 06 40 04 36 09 27 15 30 10.9 2.2 19 1254-0654 FRI FEB 17 18 32 19 10 19 36 22 08 05 36 06 01 06 40 04 40 09 31 15 33 10.9 3.0 27 1338-1224 SAT FEB 18 18 33 19 11 19 36 23 00 05 35 06 01 06 39 04 45 09 35 15 37 10.8 3.8 35 1424-1731 SUN FEB 19 18 33 19 11 19 37 23 54 05 35 06 00 06 38 04 49 09 39 15 40 10.8 4.7 43 1514-2201 MON FEB 20 18 33 19 11 19 37 00 53 05 34 06 00 06 38 04 53 09 43 15 44 10.8 5.7 52 1608-2536 TUE FEB 21 18 34 19 12 19 37 01 54 05 33 05 59 06 37 04 58 09 47 15 47 10.8 6.7 62 1707-2755 WED FEB 22 18 34 19 12 19 38 02 56 05 33 05 59 06 36 05 02 09 51 15 51 10.8 7.7 71 1809-2838 THU FEB 23 18 35 19 13 19 38 03 57 05 32 05 58 06 36 05 07 09 55 15 54 10.7 8.7 81 1913-2730 FRI FEB 24 18 35 19 13 19 39 04 53 05 32 05 57 06 35 05 11 09 59 15 57 10.7 9.7 90 2017-2428 SAT FEB 25 18 35 19 13 19 39 05 44 16 31 05 31 05 57 06 34 05 15 10 03 16 01 10.7 10.5 97 2119-1943 SUN FEB 26 18 36 19 14 19 39 06 30 17 39 05 30 05 56 06 34 05 20 10 07 16 03 10.7 10.7 100 2217-1340 MON FEB 27 18 36 19 14 19 40 07 12 18 44 05 30 05 55 06 33 05 24 10 10 16 06 10.7 10.7 100 2313-0646 TUE FEB 28 18 37 19 14 19 40 07 52 19 47 05 29 05 55 06 32 05 28 10 14 16 10 10.7 10.1 94 0006+0026 ONE LINE REFERS TO EVENING DATE FIRST QUARTER FEB 05 06:31 UT AND FOLLOWING MORNING. FULL MOON FEB 13 04:47 UT All dates and times are zone HST LAST QUARTER FEB 21 07:22 UT in upper table (except sid time). NEW MOON FEB 28 00:31 UT