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 SAT JUL 01 19 16 19 58 20 29 06 38 19 35 04 23 04 53 05 36 14 50 18 21 22 45 7.9 7.9 100 0729+2128 SUN JUL 02 19 16 19 59 20 29 07 44 20 36 04 24 04 54 05 36 14 53 18 25 22 50 7.9 7.8 98 0833+1948 MON JUL 03 19 16 19 59 20 28 21 32 04 24 04 54 05 36 14 56 18 29 22 54 7.9 6.9 86 0935+1647 TUE JUL 04 19 16 19 58 20 28 22 22 04 24 04 54 05 37 15 00 18 33 22 58 7.9 6.0 76 1033+1248 WED JUL 05 19 16 19 58 20 28 23 07 04 25 04 55 05 37 15 04 18 37 23 03 7.9 5.3 66 1127+0813 THU JUL 06 19 16 19 58 20 28 23 49 04 25 04 55 05 37 15 08 18 41 23 07 7.9 4.6 57 1218+0321 FRI JUL 07 19 16 19 58 20 28 00 28 04 26 04 56 05 38 15 12 18 45 23 12 8.0 4.0 49 1307-0131 SAT JUL 08 19 16 19 58 20 28 01 06 04 26 04 56 05 38 15 16 18 49 23 15 8.0 3.3 41 1355-0611 SUN JUL 09 19 16 19 58 20 28 01 44 04 27 04 56 05 39 15 20 18 53 23 20 8.0 2.7 34 1442-1029 MON JUL 10 19 16 19 58 20 28 02 24 04 27 04 57 05 39 15 24 18 57 23 24 8.0 2.0 25 1530-1416 TUE JUL 11 19 16 19 58 20 27 03 05 04 28 04 57 05 39 15 27 19 01 23 29 8.0 1.4 17 1619-1723 WED JUL 12 19 16 19 58 20 27 16 03 03 48 04 28 04 58 05 40 15 31 19 04 23 33 8.0 0.7 8 1708-1943 THU JUL 13 19 15 19 57 20 27 16 54 04 34 04 29 04 58 05 40 15 35 19 08 23 38 8.0 0.0 0 1759-2112 FRI JUL 14 19 15 19 57 20 27 17 44 05 22 04 29 04 59 05 40 15 39 19 12 23 42 8.0 0.0 0 1849-2144 SAT JUL 15 19 15 19 57 20 26 18 32 06 11 04 30 04 59 05 41 15 42 19 16 23 47 8.1 0.0 0 1940-2118 SUN JUL 16 19 15 19 57 20 26 19 19 07 02 04 30 05 00 05 41 15 46 19 20 23 51 8.1 0.0 0 2031-1955 MON JUL 17 19 15 19 56 20 26 20 03 07 53 04 31 05 00 05 42 15 50 19 24 23 56 8.1 0.0 0 2120-1739 TUE JUL 18 19 14 19 56 20 25 20 44 04 31 05 00 05 42 15 53 19 28 00 00 8.1 0.3 3 2209-1436 WED JUL 19 19 14 19 56 20 25 21 24 04 32 05 01 05 42 15 56 19 32 00 05 8.1 1.0 12 2256-1053 THU JUL 20 19 14 19 55 20 24 22 02 04 32 05 01 05 43 15 59 19 36 00 09 8.1 1.6 20 2343-0641 FRI JUL 21 19 13 19 55 20 24 22 40 04 33 05 02 05 43 16 03 19 40 00 14 8.2 2.3 27 0030-0207 SAT JUL 22 19 13 19 54 20 23 23 17 04 33 05 02 05 44 16 06 19 44 00 18 8.2 2.9 35 0118+0237 SUN JUL 23 19 13 19 54 20 23 23 57 04 34 05 03 05 44 16 10 19 48 00 23 8.2 3.6 43 0208+0721 MON JUL 24 19 12 19 54 20 23 00 39 04 34 05 03 05 44 16 14 19 52 00 27 8.2 4.3 52 0259+1153 TUE JUL 25 19 12 19 53 20 22 01 25 04 35 05 04 05 45 16 17 19 56 00 31 8.2 5.0 61 0354+1554 WED JUL 26 19 12 19 53 20 21 02 16 04 35 05 04 05 45 16 20 20 00 00 35 8.2 5.9 71 0453+1906 THU JUL 27 19 11 19 52 20 21 03 13 16 09 04 36 05 05 05 46 16 24 20 04 00 40 8.2 6.9 83 0555+2108 FRI JUL 28 19 11 19 52 20 20 04 16 17 14 04 36 05 05 05 46 16 27 20 08 00 44 8.3 7.9 95 0700+2143 SAT JUL 29 19 10 19 51 20 20 05 22 18 17 04 37 05 06 05 46 16 31 20 12 00 49 8.3 8.3 100 0805+2044 SUN JUL 30 19 10 19 51 20 19 06 28 19 16 04 38 05 06 05 47 16 34 20 15 00 54 8.3 8.3 100 0908+1815 MON JUL 31 19 10 19 50 20 18 07 33 20 09 04 38 05 06 05 47 16 37 20 19 00 58 8.3 8.3 100 1009+1435 ONE LINE REFERS TO EVENING DATE NEW MOON JUL 01 19:22 UT AND FOLLOWING MORNING. FIRST QUARTER JUL 08 12:55 UT All dates and times are zone HST FULL MOON JUL 16 13:59 UT in upper table (except sid time). LAST QUARTER JUL 24 11:05 UT NEW MOON JUL 31 02:28 UT