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 FRI DEC 01 17 52 18 32 18 59 04 30 05 23 05 50 06 30 22 54 04 23 10 14 11.3 1.3 11 0211+1657 SAT DEC 02 17 52 18 33 18 59 05 36 05 23 05 50 06 30 22 59 04 26 10 17 11.3 0.2 2 0308+2207 SUN DEC 03 17 53 18 33 19 00 16 28 06 43 05 24 05 51 06 31 23 03 04 30 10 22 11.3 0.0 0 0409+2554 MON DEC 04 17 53 18 33 19 00 17 23 07 48 05 24 05 51 06 32 23 06 04 34 10 26 11.3 0.0 0 0512+2800 TUE DEC 05 17 53 18 33 19 00 18 23 05 25 05 52 06 32 23 10 04 38 10 31 11.3 0.0 0 0615+2817 WED DEC 06 17 53 18 33 19 00 19 25 05 25 05 52 06 33 23 14 04 42 10 35 11.3 0.9 7 0715+2650 THU DEC 07 17 53 18 34 19 01 20 26 05 26 05 53 06 33 23 19 04 46 10 40 11.3 1.9 16 0812+2356 FRI DEC 08 17 54 18 34 19 01 21 24 05 27 05 54 06 34 23 23 04 50 10 45 11.3 2.8 24 0904+1957 SAT DEC 09 17 54 18 34 19 01 22 19 05 27 05 54 06 35 23 27 04 54 10 49 11.3 3.8 33 0952+1511 SUN DEC 10 17 54 18 35 19 02 23 10 05 28 05 55 06 35 23 32 04 58 10 54 11.3 4.6 40 1037+0956 MON DEC 11 17 55 18 35 19 02 23 59 05 28 05 55 06 36 23 36 05 02 10 58 11.3 5.4 47 1120+0425 TUE DEC 12 17 55 18 35 19 02 00 46 05 29 05 56 06 36 23 40 05 06 11 03 11.3 6.2 54 1202-0111 WED DEC 13 17 55 18 36 19 03 01 34 05 29 05 56 06 37 23 45 05 10 11 07 11.3 7.0 61 1243-0646 THU DEC 14 17 56 18 36 19 03 02 22 05 30 05 57 06 38 23 49 05 14 11 12 11.3 7.8 68 1327-1209 FRI DEC 15 17 56 18 37 19 04 03 13 05 30 05 58 06 38 23 54 05 18 11 17 11.3 8.6 75 1412-1709 SAT DEC 16 17 56 18 37 19 04 04 06 05 31 05 58 06 39 23 58 05 22 11 21 11.3 9.5 83 1500-2133 SUN DEC 17 17 57 18 37 19 05 05 03 05 31 05 59 06 39 00 02 05 26 11 26 11.4 10.4 91 1553-2505 MON DEC 18 17 57 18 38 19 05 06 02 16 28 05 32 05 59 06 40 00 07 05 30 11 30 11.4 11.4 100 1649-2727 TUE DEC 19 17 58 18 38 19 05 07 01 17 21 05 33 06 00 06 40 00 11 05 34 11 35 11.4 11.4 100 1748-2821 WED DEC 20 17 58 18 39 19 06 07 57 18 20 05 33 06 00 06 41 00 16 05 37 11 38 11.4 11.4 100 1848-2738 THU DEC 21 17 59 18 39 19 06 19 22 05 34 06 01 06 41 00 20 05 41 11 43 11.4 10.7 93 1948-2517 FRI DEC 22 17 59 18 40 19 07 20 24 05 34 06 01 06 42 00 24 05 45 11 47 11.4 9.6 84 2045-2125 SAT DEC 23 18 00 18 40 19 07 21 26 05 35 06 02 06 42 00 28 05 49 11 52 11.4 8.6 75 2140-1621 SUN DEC 24 18 00 18 41 19 08 22 26 05 35 06 02 06 43 00 33 05 53 11 56 11.4 7.6 66 2232-1023 MON DEC 25 18 01 18 41 19 08 23 24 05 35 06 03 06 43 00 37 05 57 12 01 11.4 6.7 58 2323-0353 TUE DEC 26 18 01 18 42 19 09 00 21 05 36 06 03 06 44 00 42 06 01 12 05 11.3 5.7 50 0012+0248 WED DEC 27 18 02 18 42 19 10 01 20 05 36 06 04 06 44 00 46 06 05 12 10 11.4 4.7 41 0103+0923 THU DEC 28 18 02 18 43 19 10 02 20 05 37 06 04 06 44 00 51 06 09 12 14 11.3 3.7 32 0155+1530 FRI DEC 29 18 03 18 43 19 11 03 23 05 37 06 04 06 45 00 55 06 13 12 18 11.3 2.7 23 0250+2047 SAT DEC 30 18 04 18 44 19 11 04 27 05 38 06 05 06 45 01 00 06 17 12 23 11.3 1.6 14 0348+2454 SUN DEC 31 18 04 18 45 19 12 05 32 05 38 06 05 06 46 01 05 06 21 12 27 11.3 0.6 4 0449+2729 ONE LINE REFERS TO EVENING DATE FULL MOON DEC 05 00:28 UT AND FOLLOWING MORNING. LAST QUARTER DEC 12 14:35 UT All dates and times are zone HST NEW MOON DEC 20 14:03 UT in upper table (except sid time). FIRST QUARTER DEC 27 14:50 UT