KECK OBSERVATORY CALENDAR FOR 2000 -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 2000 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight MON MAY 01 18 56 19 35 20 03 04 52 16 54 04 34 05 02 05 42 10 23 14 21 18 55 8.5 8.5 100 0121+0312 TUE MAY 02 18 56 19 36 20 04 05 35 17 52 04 34 05 01 05 41 10 28 14 25 18 59 8.5 8.5 100 0214+0813 WED MAY 03 18 56 19 36 20 04 06 22 18 53 04 33 05 01 05 41 10 32 14 29 19 02 8.5 8.5 100 0310+1253 THU MAY 04 18 57 19 37 20 05 07 13 19 56 04 32 05 00 05 40 10 37 14 32 19 05 8.4 8.4 100 0408+1650 FRI MAY 05 18 57 19 37 20 05 21 00 04 31 04 59 05 40 10 41 14 36 19 08 8.4 7.5 89 0509+1944 SAT MAY 06 18 58 19 38 20 06 22 05 04 31 04 59 05 39 10 46 14 40 19 12 8.4 6.4 76 0612+2119 SUN MAY 07 18 58 19 38 20 06 23 07 04 30 04 58 05 39 10 50 14 44 19 15 8.4 5.4 64 0715+2127 MON MAY 08 18 58 19 39 20 07 00 05 04 29 04 58 05 38 10 55 14 48 19 18 8.4 4.4 52 0816+2010 TUE MAY 09 18 59 19 39 20 08 00 57 04 29 04 57 05 38 11 00 14 52 19 22 8.3 3.5 42 0915+1739 WED MAY 10 18 59 19 40 20 08 01 45 04 28 04 56 05 37 11 03 14 56 19 25 8.3 2.7 32 1010+1410 THU MAY 11 19 00 19 40 20 09 02 29 04 28 04 56 05 37 11 08 15 00 19 29 8.3 2.0 23 1103+1000 FRI MAY 12 19 00 19 41 20 09 03 09 04 27 04 55 05 36 11 12 15 04 19 32 8.3 1.3 15 1153+0525 SAT MAY 13 19 00 19 41 20 10 03 48 04 26 04 55 05 36 11 17 15 08 19 35 8.3 0.6 7 1242+0039 SUN MAY 14 19 01 19 42 20 10 04 26 04 26 04 54 05 35 11 21 15 12 19 39 8.3 0.0 0 1330-0402 MON MAY 15 19 01 19 42 20 11 16 46 05 05 04 25 04 54 05 35 11 26 15 16 19 42 8.2 0.0 0 1418-0830 TUE MAY 16 19 02 19 43 20 11 17 38 05 44 04 25 04 54 05 35 11 30 15 20 19 45 8.2 0.0 0 1506-1232 WED MAY 17 19 02 19 43 20 12 18 29 06 25 04 24 04 53 05 34 11 35 15 24 19 48 8.2 0.0 0 1554-1559 THU MAY 18 19 03 19 44 20 13 19 21 07 08 04 24 04 53 05 34 11 40 15 28 19 52 8.2 0.0 0 1644-1843 FRI MAY 19 19 03 19 44 20 13 20 12 07 53 04 23 04 52 05 34 11 44 15 32 19 55 8.2 0.0 0 1734-2035 SAT MAY 20 19 03 19 45 20 14 21 02 04 23 04 52 05 33 11 49 15 36 19 59 8.1 0.8 9 1825-2133 SUN MAY 21 19 04 19 45 20 14 21 51 04 22 04 52 05 33 11 53 15 39 20 02 8.1 1.6 19 1916-2132 MON MAY 22 19 04 19 46 20 15 22 38 04 22 04 51 05 33 11 58 15 43 20 06 8.1 2.4 29 2006-2034 TUE MAY 23 19 05 19 46 20 15 23 23 04 22 04 51 05 33 12 02 15 47 20 10 8.1 3.1 38 2056-1841 WED MAY 24 19 05 19 47 20 16 00 05 04 21 04 51 05 32 12 07 15 51 20 13 8.1 3.8 47 2145-1558 THU MAY 25 19 05 19 47 20 17 00 46 04 21 04 50 05 32 12 12 15 55 20 17 8.1 4.5 55 2234-1231 FRI MAY 26 19 06 19 48 20 17 01 25 04 21 04 50 05 32 12 16 15 59 20 21 8.1 5.1 63 2322-0827 SAT MAY 27 19 06 19 48 20 18 02 04 04 20 04 50 05 32 12 21 16 03 20 24 8.0 5.8 71 0011-0353 SUN MAY 28 19 07 19 49 20 18 02 44 04 20 04 50 05 32 12 24 16 07 20 28 8.0 6.4 80 0100+0100 MON MAY 29 19 07 19 49 20 19 03 26 04 20 04 49 05 31 12 29 16 11 20 32 8.0 7.1 88 0152+0601 TUE MAY 30 19 08 19 50 20 19 04 10 16 34 04 20 04 49 05 31 12 33 16 15 20 36 8.0 7.8 97 0246+1053 WED MAY 31 19 08 19 50 20 20 04 59 17 36 04 19 04 49 05 31 12 38 16 19 20 39 8.0 8.0 100 0343+1515 ONE LINE REFERS TO EVENING DATE NEW MOON MAY 04 04:14 UT AND FOLLOWING MORNING. FIRST QUARTER MAY 10 20:03 UT All dates and times are zone HST FULL MOON MAY 18 07:36 UT in upper table (except sid time). LAST QUARTER MAY 26 11:58 UT