KECK OBSERVATORY CALENDAR FOR 2004 -ASTRONOMICAL (computed for altitude 4145.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) RA DEC 2004 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight SAT MAY 01 18 56 19 35 20 03 04 33 04 34 05 02 05 42 10 23 14 21 18 55 8.5 0.0 0 1242-0138 SUN MAY 02 18 56 19 36 20 04 16 50 05 12 04 34 05 01 05 41 10 28 14 25 18 59 8.5 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 32 14 29 19 02 8.5 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 37 14 33 19 05 8.4 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 41 14 37 19 08 8.4 0.0 0 1628-2418 THU MAY 06 18 58 19 38 20 06 21 12 04 31 04 59 05 39 10 46 14 40 19 12 8.4 1.1 13 1734-2655 FRI MAY 07 18 58 19 38 20 06 22 20 04 30 04 58 05 39 10 50 14 44 19 15 8.4 2.2 26 1840-2735 SAT MAY 08 18 58 19 39 20 07 23 22 04 29 04 58 05 38 10 55 14 48 19 18 8.4 3.2 38 1945-2620 SUN MAY 09 18 59 19 39 20 08 00 17 04 29 04 57 05 38 11 00 14 52 19 22 8.3 4.2 49 2046-2325 MON MAY 10 18 59 19 40 20 08 01 04 04 28 04 57 05 37 11 04 14 56 19 25 8.3 4.9 59 2142-1913 TUE MAY 11 19 00 19 40 20 09 01 46 04 28 04 56 05 37 11 09 15 00 19 29 8.3 5.6 67 2234-1408 WED MAY 12 19 00 19 41 20 09 02 23 04 27 04 55 05 36 11 12 15 04 19 32 8.3 6.2 75 2323-0833 THU MAY 13 19 00 19 41 20 10 02 57 04 26 04 55 05 36 11 17 15 08 19 35 8.3 6.8 82 0009-0243 FRI MAY 14 19 01 19 42 20 10 03 30 04 26 04 54 05 35 11 21 15 12 19 39 8.3 7.3 88 0053+0305 SAT MAY 15 19 01 19 42 20 11 04 03 16 25 04 25 04 54 05 35 11 26 15 16 19 42 8.2 7.9 95 0138+0842 SUN MAY 16 19 02 19 43 20 11 04 37 17 16 04 25 04 54 05 35 11 30 15 20 19 46 8.2 8.2 100 0223+1355 MON MAY 17 19 02 19 43 20 12 05 13 18 08 04 24 04 53 05 34 11 35 15 24 19 49 8.2 8.2 100 0309+1833 TUE MAY 18 19 03 19 44 20 13 05 52 19 01 04 24 04 53 05 34 11 40 15 28 19 52 8.2 8.2 100 0358+2224 WED MAY 19 19 03 19 44 20 13 06 35 19 54 04 23 04 52 05 34 11 44 15 32 19 55 8.2 8.2 100 0448+2518 THU MAY 20 19 03 19 45 20 14 07 22 20 48 04 23 04 52 05 33 11 49 15 36 19 59 8.1 7.6 93 0540+2703 FRI MAY 21 19 04 19 45 20 14 21 40 04 22 04 52 05 33 11 53 15 40 20 02 8.1 6.7 82 0634+2735 SAT MAY 22 19 04 19 46 20 15 22 30 04 22 04 51 05 33 11 58 15 44 20 06 8.1 5.9 72 0727+2650 SUN MAY 23 19 05 19 46 20 15 23 17 04 22 04 51 05 33 12 02 15 47 20 10 8.1 5.1 62 0819+2452 MON MAY 24 19 05 19 47 20 16 23 59 04 21 04 51 05 32 12 07 15 51 20 13 8.1 4.4 54 0910+2145 TUE MAY 25 19 05 19 47 20 17 00 39 04 21 04 50 05 32 12 12 15 55 20 17 8.1 3.7 45 0959+1739 WED MAY 26 19 06 19 48 20 17 01 16 04 21 04 50 05 32 12 16 15 59 20 21 8.1 3.1 38 1047+1241 THU MAY 27 19 06 19 48 20 18 01 51 04 20 04 50 05 32 12 21 16 03 20 24 8.0 2.5 30 1134+0703 FRI MAY 28 19 07 19 49 20 18 02 27 04 20 04 50 05 32 12 25 16 07 20 28 8.0 1.9 23 1222+0055 SAT MAY 29 19 07 19 49 20 19 03 04 04 20 04 49 05 31 12 30 16 11 20 32 8.0 1.3 15 1311-0527 SUN MAY 30 19 08 19 50 20 19 03 44 04 20 04 49 05 31 12 33 16 15 20 36 8.0 0.6 7 1403-1148 MON MAY 31 19 08 19 50 20 20 16 33 04 29 04 19 04 49 05 31 12 38 16 19 20 39 8.0 0.0 0 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