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 THU JAN 01 18 05 18 45 19 12 03 04 05 39 06 06 06 46 01 08 06 24 12 31 11.3 3.0 26 0251+1604 FRI JAN 02 18 05 18 46 19 13 03 56 05 39 06 06 06 46 01 13 06 28 12 35 11.3 2.2 19 0338+2010 SAT JAN 03 18 06 18 47 19 14 04 49 05 39 06 06 06 47 01 18 06 32 12 39 11.3 1.3 11 0427+2328 SUN JAN 04 18 07 18 47 19 14 05 42 05 40 06 07 06 47 01 22 06 36 12 44 11.3 0.4 3 0518+2546 MON JAN 05 18 07 18 48 19 15 16 20 06 36 05 40 06 07 06 47 01 27 06 39 12 47 11.3 0.0 0 0611+2655 TUE JAN 06 18 08 18 48 19 15 17 11 07 27 05 40 06 07 06 47 01 31 06 43 12 51 11.3 0.0 0 0706+2647 WED JAN 07 18 09 18 49 19 16 18 05 05 41 06 07 06 48 01 35 06 47 12 55 11.3 0.0 0 0800+2521 THU JAN 08 18 09 18 49 19 16 19 02 05 41 06 08 06 48 01 39 06 51 13 00 11.3 0.2 1 0853+2240 FRI JAN 09 18 10 18 50 19 17 19 58 05 41 06 08 06 48 01 44 06 55 13 04 11.3 1.1 10 0945+1852 SAT JAN 10 18 11 18 51 19 18 20 54 05 41 06 08 06 48 01 49 06 59 13 08 11.3 2.0 18 1034+1410 SUN JAN 11 18 11 18 51 19 18 21 49 05 42 06 08 06 48 01 53 07 03 13 12 11.3 3.0 26 1123+0845 MON JAN 12 18 12 18 52 19 19 22 43 05 42 06 09 06 49 01 58 07 07 13 17 11.3 3.9 34 1210+0252 TUE JAN 13 18 12 18 52 19 19 23 38 05 42 06 09 06 49 02 02 07 11 13 21 11.3 4.8 42 1258-0315 WED JAN 14 18 13 18 53 19 20 00 35 05 42 06 09 06 49 02 07 07 15 13 25 11.3 5.7 50 1348-0921 THU JAN 15 18 14 18 54 19 20 01 34 05 42 06 09 06 49 02 12 07 19 13 29 11.3 6.7 59 1440-1508 FRI JAN 16 18 14 18 54 19 21 02 37 05 42 06 09 06 49 02 16 07 23 13 33 11.3 7.7 68 1537-2012 SAT JAN 17 18 15 18 55 19 22 03 43 05 42 06 09 06 49 02 21 07 27 13 37 11.2 8.8 78 1637-2408 SUN JAN 18 18 16 18 55 19 22 04 50 05 43 06 09 06 49 02 25 07 31 13 41 11.2 9.9 88 1742-2630 MON JAN 19 18 16 18 56 19 23 05 56 16 17 05 43 06 09 06 49 02 30 07 35 13 45 11.2 11.0 98 1848-2701 TUE JAN 20 18 17 18 57 19 23 06 56 17 23 05 43 06 09 06 49 02 35 07 39 13 49 11.2 11.2 100 1954-2536 WED JAN 21 18 18 18 57 19 24 07 50 18 30 05 43 06 09 06 49 02 39 07 43 13 53 11.2 11.2 100 2056-2228 THU JAN 22 18 18 18 58 19 24 19 35 05 43 06 09 06 49 02 44 07 46 13 56 11.2 10.6 94 2153-1803 FRI JAN 23 18 19 18 58 19 25 20 35 05 43 06 09 06 49 02 48 07 50 14 00 11.2 9.6 85 2247-1246 SAT JAN 24 18 19 18 59 19 25 21 32 05 43 06 09 06 48 02 53 07 54 14 04 11.2 8.6 77 2336-0703 SUN JAN 25 18 20 18 59 19 26 22 25 05 43 06 09 06 48 02 56 07 58 14 08 11.2 7.7 69 0022-0112 MON JAN 26 18 21 19 00 19 26 23 16 05 43 06 09 06 48 03 01 08 02 14 12 11.2 6.9 61 0107+0431 TUE JAN 27 18 21 19 00 19 27 00 07 05 42 06 09 06 48 03 05 08 06 14 16 11.2 6.0 54 0152+0956 WED JAN 28 18 22 19 01 19 27 00 57 05 42 06 09 06 48 03 10 08 10 14 20 11.1 5.2 46 0237+1453 THU JAN 29 18 22 19 02 19 28 01 49 05 42 06 08 06 48 03 15 08 14 14 23 11.1 4.3 38 0323+1913 FRI JAN 30 18 23 19 02 19 28 02 41 05 42 06 08 06 47 03 19 08 18 14 27 11.1 3.4 31 0412+2245 SAT JAN 31 18 24 19 03 19 29 03 34 05 42 06 08 06 47 03 24 08 22 14 31 11.1 2.6 23 0502+2521 ONE LINE REFERS TO EVENING DATE FULL MOON JAN 07 15:44 UT AND FOLLOWING MORNING. LAST QUARTER JAN 15 04:49 UT All dates and times are zone HST NEW MOON JAN 21 21:07 UT in upper table (except sid time). FIRST QUARTER JAN 29 06:06 UT