KECK OBSERVATORY CALENDAR FOR 2040 -ASTRONOMICAL (computed for altitude 4160.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON(midnight) DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) Zenith 2040 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ RA DEC Dist 12 18 18 12 18 18 h h % h m d m deg WED FEB 01 18 24 19 03 19 29 21 19 05 42 06 08 06 47 03 55 08 27 14 10 10.2 1.8 17 1211 0405 57 THU FEB 02 18 25 19 04 19 30 22 11 05 41 06 08 06 46 04 00 08 31 14 13 10.2 2.7 26 1258-0131 69 FRI FEB 03 18 25 19 04 19 30 23 06 05 41 06 07 06 46 04 04 08 35 14 17 10.2 3.6 35 1345-0705 81 SAT FEB 04 18 26 19 05 19 31 00 01 05 41 06 07 06 46 04 09 08 39 14 21 10.2 4.5 44 1436-1231 >90 SUN FEB 05 18 26 19 05 19 31 01 00 05 41 06 07 06 45 04 13 08 43 14 25 10.2 5.5 53 1529-1723 >90 MON FEB 06 18 27 19 06 19 32 02 03 05 40 06 06 06 45 04 18 08 47 14 28 10.1 6.5 64 1626-2125 >90 TUE FEB 07 18 27 19 06 19 32 03 08 05 40 06 06 06 45 04 22 08 51 14 32 10.1 7.6 75 1726-2414 >90 WED FEB 08 18 28 19 07 19 32 04 13 14 40 05 40 06 06 06 44 04 26 08 55 14 36 10.1 8.7 85 1830-2529 >90 THU FEB 09 18 28 19 07 19 33 05 16 15 44 05 39 06 05 06 44 04 31 08 59 14 38 10.1 9.7 96 1935-2500 >90 FRI FEB 10 18 29 19 07 19 33 06 14 16 51 05 39 06 05 06 43 04 35 09 02 14 42 10.1 10.1 100 2038-2247 >90 SAT FEB 11 18 29 19 08 19 34 17 58 05 39 06 04 06 43 04 40 09 06 14 46 10.1 10.1 100 2138-1905 >90 SUN FEB 12 18 30 19 08 19 34 19 02 05 38 06 04 06 42 04 44 09 10 14 49 10.1 10.1 100 2235-1417 >90 MON FEB 13 18 30 19 09 19 35 20 03 05 38 06 03 06 42 04 49 09 14 14 53 10.0 9.6 95 2328-0848 >90 TUE FEB 14 18 31 19 09 19 35 21 01 05 37 06 03 06 41 04 53 09 18 14 56 10.0 8.6 85 0018-0302 >90 WED FEB 15 18 31 19 10 19 35 21 56 05 37 06 03 06 41 04 56 09 22 15 00 10.0 7.7 76 0106 0243 >90 THU FEB 16 18 32 19 10 19 36 22 50 05 36 06 02 06 40 05 01 09 26 15 03 10.0 6.8 67 0153 0811 >90 FRI FEB 17 18 32 19 10 19 36 23 43 05 36 06 01 06 40 05 05 09 30 15 07 10.0 5.9 58 0240 1310 >90 SAT FEB 18 18 33 19 11 19 36 00 36 05 35 06 01 06 39 05 09 09 34 15 10 10.0 5.0 49 0329 1727 85 SUN FEB 19 18 33 19 11 19 37 01 29 05 35 06 00 06 38 05 14 09 38 15 14 10.0 4.1 41 0417 2102 74 MON FEB 20 18 33 19 11 19 37 02 21 05 34 06 00 06 38 05 18 09 42 15 17 9.9 3.2 32 0508 2339 63 TUE FEB 21 18 34 19 12 19 38 03 14 05 34 05 59 06 37 05 23 09 46 15 21 9.9 2.3 23 0600 2512 52 WED FEB 22 18 34 19 12 19 38 04 04 05 33 05 59 06 36 05 27 09 50 15 24 9.9 1.5 14 0653 2536 41 THU FEB 23 18 35 19 13 19 38 14 45 04 52 05 32 05 58 06 36 05 31 09 54 15 27 9.9 0.7 6 0746 2447 30 FRI FEB 24 18 35 19 13 19 39 15 38 05 37 05 32 05 57 06 35 05 36 09 58 15 31 9.9 0.0 0 0839 2247 19 SAT FEB 25 18 35 19 13 19 39 16 32 06 19 05 31 05 57 06 34 05 40 10 02 15 34 9.9 0.0 0 0930 1941 07 SUN FEB 26 18 36 19 14 19 39 17 26 06 58 05 30 05 56 06 34 05 44 10 06 15 36 9.9 0.0 0 1020 1538 05 MON FEB 27 18 36 19 14 19 40 18 20 05 30 05 55 06 33 05 49 10 09 15 40 9.8 0.0 0 1109 1047 17 TUE FEB 28 18 37 19 14 19 40 19 14 05 29 05 55 06 32 05 53 10 13 15 43 9.8 0.0 0 1157 0524 29 WED FEB 29 18 37 19 15 19 40 20 07 05 28 05 54 06 32 05 57 10 17 15 46 9.8 0.5 4 1245-0019 41 ONE LINE REFERS TO EVENING DATE LAST QUARTER Feb 05 22:33 UT AND FOLLOWING MORNING. NEW MOON Feb 12 14:23 UT All dates and times are zone HST FIRST QUARTER Feb 19 21:33 UT in upper table (except sid time). FULL MOON Feb 28 01:00 UT