KECK OBSERVATORY CALENDAR FOR 2005 -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 2005 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight SUN MAY 01 18 55 19 35 20 03 02 03 04 35 05 03 05 42 10 22 14 20 18 56 8.5 6.0 70 2208-1601 MON MAY 02 18 56 19 35 20 03 02 43 04 34 05 02 05 42 10 26 14 24 18 58 8.5 6.7 78 2300-1003 TUE MAY 03 18 56 19 36 20 04 03 20 04 34 05 01 05 41 10 31 14 28 19 02 8.5 7.3 85 2349-0339 WED MAY 04 18 56 19 36 20 04 03 56 04 33 05 01 05 41 10 35 14 32 19 05 8.5 7.9 92 0038+0249 THU MAY 05 18 57 19 37 20 05 04 32 16 53 04 32 05 00 05 40 10 40 14 36 19 08 8.4 8.4 100 0126+0906 FRI MAY 06 18 57 19 37 20 05 05 09 17 49 04 31 04 59 05 40 10 44 14 40 19 11 8.4 8.4 100 0215+1453 SAT MAY 07 18 58 19 38 20 06 05 49 18 46 04 31 04 59 05 39 10 49 14 43 19 15 8.4 8.4 100 0305+1954 SUN MAY 08 18 58 19 38 20 06 06 32 19 44 04 30 04 58 05 39 10 53 14 47 19 18 8.4 8.4 100 0358+2354 MON MAY 09 18 58 19 39 20 07 07 19 20 42 04 29 04 58 05 38 10 58 14 51 19 21 8.4 7.8 93 0452+2641 TUE MAY 10 18 59 19 39 20 08 21 39 04 29 04 57 05 38 11 03 14 55 19 25 8.3 6.8 81 0547+2807 WED MAY 11 18 59 19 40 20 08 22 32 04 28 04 57 05 37 11 07 14 59 19 28 8.3 5.9 71 0642+2809 THU MAY 12 19 00 19 40 20 09 23 21 04 28 04 56 05 37 11 12 15 03 19 32 8.3 5.1 61 0736+2651 FRI MAY 13 19 00 19 41 20 09 00 06 04 27 04 55 05 36 11 15 15 07 19 35 8.3 4.3 52 0827+2422 SAT MAY 14 19 00 19 41 20 10 00 46 04 26 04 55 05 36 11 20 15 11 19 38 8.3 3.7 44 0916+2050 SUN MAY 15 19 01 19 42 20 10 01 22 04 26 04 54 05 35 11 24 15 15 19 42 8.3 3.1 37 1003+1628 MON MAY 16 19 01 19 42 20 11 01 56 04 25 04 54 05 35 11 29 15 19 19 45 8.2 2.5 30 1048+1126 TUE MAY 17 19 02 19 43 20 11 02 29 04 25 04 54 05 35 11 33 15 23 19 49 8.2 1.9 23 1132+0552 WED MAY 18 19 02 19 43 20 12 03 01 04 24 04 53 05 34 11 38 15 27 19 52 8.2 1.4 16 1217-0003 THU MAY 19 19 03 19 44 20 13 03 35 04 24 04 53 05 34 11 43 15 31 19 55 8.2 0.8 9 1302-0609 FRI MAY 20 19 03 19 44 20 13 16 02 04 12 04 23 04 52 05 34 11 47 15 35 19 58 8.2 0.2 2 1350-1210 SAT MAY 21 19 03 19 45 20 14 16 59 04 53 04 23 04 52 05 33 11 52 15 39 20 02 8.1 0.0 0 1442-1747 SUN MAY 22 19 04 19 45 20 14 18 01 05 40 04 22 04 52 05 33 11 56 15 43 20 05 8.1 0.0 0 1539-2236 MON MAY 23 19 04 19 46 20 15 19 06 06 34 04 22 04 51 05 33 12 01 15 47 20 09 8.1 0.0 0 1640-2610 TUE MAY 24 19 05 19 46 20 15 20 13 07 36 04 22 04 51 05 33 12 05 15 50 20 13 8.1 0.0 0 1745-2803 WED MAY 25 19 05 19 47 20 16 21 19 04 21 04 51 05 32 12 10 15 54 20 16 8.1 1.1 12 1852-2758 THU MAY 26 19 05 19 47 20 17 22 21 04 21 04 50 05 32 12 15 15 58 20 20 8.1 2.1 25 1957-2555 FRI MAY 27 19 06 19 48 20 17 23 15 04 21 04 50 05 32 12 19 16 02 20 24 8.1 3.0 36 2058-2211 SAT MAY 28 19 06 19 48 20 18 00 02 04 20 04 50 05 32 12 24 16 06 20 27 8.0 3.7 46 2155-1710 SUN MAY 29 19 07 19 49 20 18 00 44 04 20 04 50 05 32 12 28 16 10 20 31 8.0 4.4 55 2248-1118 MON MAY 30 19 07 19 49 20 19 01 22 04 20 04 49 05 31 12 33 16 14 20 35 8.0 5.0 62 2338-0500 TUE MAY 31 19 08 19 50 20 19 01 57 04 20 04 49 05 31 12 36 16 18 20 39 8.0 5.6 70 0026+0124 ONE LINE REFERS TO EVENING DATE LAST QUARTER MAY 01 06:27 UT AND FOLLOWING MORNING. NEW MOON MAY 08 08:49 UT All dates and times are zone HST FIRST QUARTER MAY 16 08:59 UT in upper table (except sid time). FULL MOON MAY 23 20:21 UT LAST QUARTER MAY 30 11:51 UT