KECK OBSERVATORY CALENDAR FOR 2004 -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 2004 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 12 12 h h % midnight WED DEC 01 17 52 18 33 18 59 21 49 05 23 05 50 06 30 22 57 04 24 10 15 11.3 3.3 28 0905+2155 THU DEC 02 17 53 18 33 19 00 22 42 05 24 05 51 06 31 23 01 04 28 10 20 11.3 4.2 36 0953+1751 FRI DEC 03 17 53 18 33 19 00 23 34 05 24 05 51 06 32 23 04 04 32 10 24 11.3 5.0 44 1039+1300 SAT DEC 04 17 53 18 33 19 00 00 25 05 25 05 52 06 32 23 08 04 36 10 29 11.3 5.9 51 1125+0734 SUN DEC 05 17 53 18 33 19 00 01 17 05 25 05 52 06 33 23 12 04 40 10 33 11.3 6.7 59 1210+0140 MON DEC 06 17 53 18 34 19 01 02 10 05 26 05 53 06 33 23 17 04 44 10 38 11.3 7.6 67 1256-0429 TUE DEC 07 17 54 18 34 19 01 03 07 05 27 05 54 06 34 23 21 04 48 10 43 11.3 8.5 75 1345-1039 WED DEC 08 17 54 18 34 19 01 04 07 05 27 05 54 06 35 23 25 04 52 10 47 11.3 9.5 84 1438-1631 THU DEC 09 17 54 18 35 19 02 05 12 05 28 05 55 06 35 23 30 04 56 10 52 11.3 10.6 93 1536-2139 FRI DEC 10 17 55 18 35 19 02 06 21 16 49 05 28 05 55 06 36 23 34 05 00 10 56 11.3 11.3 100 1639-2531 SAT DEC 11 17 55 18 35 19 02 07 31 17 49 05 29 05 56 06 36 23 38 05 04 11 01 11.3 11.3 100 1746-2737 SUN DEC 12 17 55 18 36 19 03 18 55 05 29 05 56 06 37 23 43 05 08 11 05 11.3 11.0 97 1855-2740 MON DEC 13 17 56 18 36 19 03 20 04 05 30 05 57 06 38 23 47 05 12 11 10 11.3 9.9 87 2002-2540 TUE DEC 14 17 56 18 37 19 04 21 13 05 30 05 58 06 38 23 52 05 16 11 15 11.3 8.7 77 2104-2155 WED DEC 15 17 56 18 37 19 04 22 18 05 31 05 58 06 39 23 56 05 20 11 19 11.3 7.7 67 2202-1653 THU DEC 16 17 57 18 37 19 05 23 19 05 31 05 59 06 39 00 00 05 24 11 24 11.4 6.7 58 2255-1106 FRI DEC 17 17 57 18 38 19 05 00 16 05 32 05 59 06 40 00 05 05 28 11 28 11.4 5.7 50 2344-0456 SAT DEC 18 17 58 18 38 19 05 01 10 05 33 06 00 06 40 00 09 05 31 11 32 11.4 4.8 42 0031+0114 SUN DEC 19 17 58 18 39 19 06 02 02 05 33 06 00 06 41 00 14 05 35 11 36 11.4 4.0 34 0117+0713 MON DEC 20 17 59 18 39 19 06 02 55 05 34 06 01 06 41 00 17 05 39 11 41 11.4 3.1 27 0203+1247 TUE DEC 21 17 59 18 40 19 07 03 48 05 34 06 01 06 42 00 22 05 43 11 45 11.4 2.2 19 0250+1744 WED DEC 22 18 00 18 40 19 07 04 42 05 35 06 02 06 42 00 26 05 47 11 50 11.4 1.3 11 0339+2154 THU DEC 23 18 00 18 41 19 08 05 37 05 35 06 02 06 43 00 31 05 51 11 54 11.4 0.4 3 0430+2505 FRI DEC 24 18 01 18 41 19 08 16 16 06 31 05 35 06 03 06 43 00 35 05 55 11 59 11.4 0.0 0 0522+2707 SAT DEC 25 18 01 18 42 19 09 17 04 07 24 05 36 06 03 06 44 00 40 05 59 12 03 11.3 0.0 0 0616+2754 SUN DEC 26 18 02 18 42 19 10 17 56 05 36 06 04 06 44 00 44 06 03 12 08 11.4 0.0 0 0709+2722 MON DEC 27 18 02 18 43 19 10 18 49 05 37 06 04 06 44 00 49 06 07 12 12 11.3 0.1 0 0802+2536 TUE DEC 28 18 03 18 43 19 11 19 43 05 37 06 04 06 45 00 53 06 11 12 16 11.3 1.0 8 0852+2241 WED DEC 29 18 04 18 44 19 11 20 36 05 38 06 05 06 45 00 58 06 15 12 21 11.3 1.9 16 0940+1850 THU DEC 30 18 04 18 45 19 12 21 28 05 38 06 05 06 46 01 03 06 19 12 25 11.3 2.7 23 1026+1412 FRI DEC 31 18 05 18 45 19 12 22 19 05 38 06 06 06 46 01 07 06 23 12 30 11.3 3.6 31 1111+0858 ONE LINE REFERS TO EVENING DATE LAST QUARTER DEC 05 00:56 UT AND FOLLOWING MORNING. NEW MOON DEC 12 01:32 UT All dates and times are zone HST FIRST QUARTER DEC 18 16:41 UT in upper table (except sid time). FULL MOON DEC 26 15:08 UT