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 SAT MAY 01 18 56 19 35 20 03 04 33 04 34 05 02 05 42 09 55 14 21 19 24 9.4 0.5 5 1242-0138 SUN MAY 02 18 56 19 36 20 04 16 50 05 12 04 34 05 01 05 41 10 00 14 25 19 27 9.4 0.0 0 1333-0811 MON MAY 03 18 56 19 36 20 04 17 51 05 55 04 33 05 01 05 41 10 04 14 29 19 30 9.4 0.0 0 1428-1428 TUE MAY 04 18 57 19 37 20 05 18 55 06 43 04 32 05 00 05 40 10 09 14 33 19 33 9.4 0.0 0 1526-2000 WED MAY 05 18 57 19 37 20 05 20 03 07 38 04 31 04 59 05 40 10 13 14 37 19 36 9.4 0.4 4 1628-2418 THU MAY 06 18 58 19 38 20 06 21 12 04 31 04 59 05 39 10 18 14 40 19 40 9.4 1.6 16 1734-2655 FRI MAY 07 18 58 19 38 20 06 22 20 04 30 04 58 05 39 10 22 14 44 19 43 9.3 2.7 28 1840-2735 SAT MAY 08 18 58 19 39 20 07 23 22 04 29 04 58 05 38 10 27 14 48 19 47 9.3 3.7 39 1945-2620 SUN MAY 09 18 59 19 39 20 08 00 17 04 29 04 57 05 38 10 31 14 52 19 50 9.3 4.6 49 2046-2325 MON MAY 10 18 59 19 40 20 08 01 04 04 28 04 57 05 37 10 36 14 56 19 54 9.3 5.4 58 2142-1913 TUE MAY 11 19 00 19 40 20 09 01 46 04 28 04 56 05 37 10 39 15 00 19 57 9.3 6.1 65 2234-1408 WED MAY 12 19 00 19 41 20 09 02 23 04 27 04 55 05 36 10 44 15 04 20 00 9.2 6.7 72 2323-0833 THU MAY 13 19 00 19 41 20 10 02 57 04 26 04 55 05 36 10 48 15 08 20 04 9.2 7.3 78 0009-0243 FRI MAY 14 19 01 19 42 20 10 03 30 04 26 04 54 05 35 10 53 15 12 20 07 9.2 7.8 84 0053+0305 SAT MAY 15 19 01 19 42 20 11 04 03 16 25 04 25 04 54 05 35 10 57 15 16 20 11 9.2 8.3 90 0138+0842 SUN MAY 16 19 02 19 43 20 11 04 37 17 16 04 25 04 54 05 35 11 02 15 20 20 15 9.2 8.9 96 0223+1355 MON MAY 17 19 02 19 43 20 12 05 13 18 08 04 24 04 53 05 34 11 06 15 24 20 18 9.2 9.2 100 0309+1833 TUE MAY 18 19 03 19 44 20 13 05 52 19 01 04 24 04 53 05 34 11 11 15 28 20 22 9.1 9.1 100 0358+2224 WED MAY 19 19 03 19 44 20 13 06 35 19 54 04 23 04 52 05 34 11 15 15 32 20 25 9.1 9.0 98 0448+2518 THU MAY 20 19 03 19 45 20 14 07 22 20 48 04 23 04 52 05 33 11 20 15 36 20 28 9.1 8.1 88 0540+2703 FRI MAY 21 19 04 19 45 20 14 21 40 04 22 04 52 05 33 11 24 15 40 20 32 9.1 7.2 78 0634+2735 SAT MAY 22 19 04 19 46 20 15 22 30 04 22 04 51 05 33 11 29 15 44 20 35 9.1 6.3 69 0727+2650 SUN MAY 23 19 05 19 46 20 15 23 17 04 22 04 51 05 33 11 33 15 47 20 39 9.1 5.6 61 0819+2452 MON MAY 24 19 05 19 47 20 16 23 59 04 21 04 51 05 32 11 38 15 51 20 43 9.1 4.9 53 0910+2145 TUE MAY 25 19 05 19 47 20 17 00 39 04 21 04 50 05 32 11 42 15 55 20 46 9.1 4.2 46 0959+1739 WED MAY 26 19 06 19 48 20 17 01 16 04 21 04 50 05 32 11 47 15 59 20 50 9.0 3.6 39 1047+1241 THU MAY 27 19 06 19 48 20 18 01 51 04 20 04 50 05 32 11 51 16 03 20 54 9.0 3.0 33 1134+0703 FRI MAY 28 19 07 19 49 20 18 02 27 04 20 04 50 05 32 11 56 16 07 20 58 9.0 2.4 26 1222+0055 SAT MAY 29 19 07 19 49 20 19 03 04 04 20 04 49 05 31 11 59 16 11 21 01 9.0 1.8 19 1311-0527 SUN MAY 30 19 08 19 50 20 19 03 44 04 20 04 49 05 31 12 04 16 15 21 05 9.0 1.1 12 1403-1148 MON MAY 31 19 08 19 50 20 20 16 33 04 29 04 19 04 49 05 31 12 08 16 19 21 09 9.0 0.3 3 1459-1740 ONE LINE REFERS TO EVENING DATE FULL MOON MAY 04 20:35 UT AND FOLLOWING MORNING. LAST QUARTER MAY 11 11:07 UT All dates and times are zone HST NEW MOON MAY 19 04:53 UT in upper table (except sid time). FIRST QUARTER MAY 27 08:00 UT