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 TUE FEB 01 18 24 19 03 19 29 04 41 05 42 06 08 06 47 03 54 08 26 14 09 10.2 9.2 90 1839-2055 WED FEB 02 18 25 19 04 19 30 05 29 16 21 05 41 06 08 06 46 03 59 08 30 14 12 10.2 10.0 98 1930-2037 THU FEB 03 18 25 19 04 19 30 06 15 17 12 05 41 06 07 06 46 04 03 08 34 14 16 10.2 10.2 100 2022-1923 FRI FEB 04 18 26 19 05 19 31 07 00 18 03 05 41 06 07 06 46 04 08 08 38 14 20 10.2 10.2 100 2113-1713 SAT FEB 05 18 26 19 05 19 31 07 43 18 56 05 41 06 07 06 45 04 12 08 42 14 23 10.2 10.2 100 2203-1414 SUN FEB 06 18 27 19 06 19 32 19 49 05 40 06 06 06 45 04 17 08 46 14 26 10.1 9.8 97 2252-1033 MON FEB 07 18 27 19 06 19 32 20 42 05 40 06 06 06 45 04 21 08 49 14 30 10.1 9.0 88 2341-0620 TUE FEB 08 18 28 19 06 19 32 21 35 05 40 06 06 06 44 04 25 08 53 14 34 10.1 8.1 79 0030-0145 WED FEB 09 18 28 19 07 19 33 22 29 05 39 06 05 06 44 04 30 08 57 14 37 10.1 7.2 70 0120+0257 THU FEB 10 18 29 19 07 19 33 23 25 05 39 06 05 06 43 04 34 09 01 14 41 10.1 6.2 61 0211+0737 FRI FEB 11 18 29 19 08 19 34 00 22 05 39 06 04 06 43 04 38 09 05 14 45 10.1 5.3 52 0303+1158 SAT FEB 12 18 30 19 08 19 34 01 22 05 38 06 04 06 42 04 42 09 09 14 48 10.1 4.3 42 0359+1546 SUN FEB 13 18 30 19 09 19 35 02 23 05 38 06 03 06 42 04 47 09 13 14 52 10.0 3.2 32 0457+1841 MON FEB 14 18 31 19 09 19 35 03 26 05 37 06 03 06 41 04 51 09 17 14 55 10.0 2.2 21 0558+2030 TUE FEB 15 18 31 19 10 19 35 04 27 05 37 06 02 06 41 04 55 09 21 14 59 10.0 1.2 11 0700+2057 WED FEB 16 18 32 19 10 19 36 05 26 05 36 06 02 06 40 05 00 09 25 15 02 10.0 0.2 1 0802+2000 THU FEB 17 18 32 19 10 19 36 16 35 06 21 05 36 06 01 06 40 05 04 09 29 15 06 10.0 0.0 0 0903+1742 FRI FEB 18 18 33 19 11 19 36 17 38 07 11 05 35 06 01 06 39 05 08 09 33 15 09 10.0 0.0 0 1002+1418 SAT FEB 19 18 33 19 11 19 37 18 40 07 57 05 35 06 00 06 38 05 13 09 37 15 13 10.0 0.0 0 1058+1007 SUN FEB 20 18 33 19 11 19 37 19 39 05 34 06 00 06 38 05 17 09 41 15 16 9.9 0.0 0 1151+0528 MON FEB 21 18 34 19 12 19 37 20 35 05 33 05 59 06 37 05 21 09 45 15 19 9.9 1.0 9 1241+0041 TUE FEB 22 18 34 19 12 19 38 21 29 05 33 05 59 06 36 05 26 09 49 15 22 9.9 1.9 18 1330-0400 WED FEB 23 18 35 19 13 19 38 22 22 05 32 05 58 06 36 05 30 09 53 15 25 9.9 2.7 27 1419-0822 THU FEB 24 18 35 19 13 19 39 23 13 05 32 05 57 06 35 05 35 09 56 15 29 9.9 3.6 36 1506-1216 FRI FEB 25 18 35 19 13 19 39 00 04 05 31 05 57 06 34 05 39 10 00 15 32 9.9 4.4 44 1555-1534 SAT FEB 26 18 36 19 14 19 39 00 54 05 30 05 56 06 34 05 43 10 04 15 35 9.9 5.3 53 1643-1810 SUN FEB 27 18 36 19 14 19 40 01 44 05 30 05 55 06 33 05 48 10 08 15 39 9.8 6.1 61 1733-1958 MON FEB 28 18 37 19 14 19 40 02 34 05 29 05 55 06 32 05 52 10 12 15 42 9.8 6.9 70 1823-2053 TUE FEB 29 18 37 19 15 19 40 03 22 05 28 05 54 06 32 05 55 10 16 15 45 9.8 7.7 78 1914-2053 ONE LINE REFERS TO EVENING DATE NEW MOON FEB 05 13:07 UT AND FOLLOWING MORNING. FIRST QUARTER FEB 12 23:23 UT All dates and times are zone HST FULL MOON FEB 19 16:29 UT in upper table (except sid time). LAST QUARTER FEB 27 03:56 UT