KECK OBSERVATORY CALENDAR FOR 2039 -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 2039 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 TUE FEB 01 18 24 19 03 19 29 01 50 05 42 06 08 06 47 03 56 08 28 14 11 10.2 3.9 37 0336 1620 69 WED FEB 02 18 25 19 04 19 30 02 42 05 41 06 08 06 46 04 01 08 32 14 14 10.2 3.0 29 0425 1937 58 THU FEB 03 18 25 19 04 19 30 03 34 05 41 06 07 06 46 04 05 08 36 14 18 10.2 2.1 20 0515 2206 47 FRI FEB 04 18 26 19 05 19 31 14 25 04 27 05 41 06 07 06 46 04 10 08 40 14 22 10.2 1.2 12 0608 2335 35 SAT FEB 05 18 26 19 05 19 31 15 15 05 20 05 41 06 07 06 45 04 14 08 44 14 26 10.2 0.3 3 0703 2356 24 SUN FEB 06 18 27 19 06 19 32 16 09 06 10 05 40 06 06 06 45 04 19 08 48 14 29 10.1 0.0 0 0759 2300 12 MON FEB 07 18 27 19 06 19 32 17 06 06 59 05 40 06 06 06 45 04 23 08 52 14 33 10.1 0.0 0 0856 2049 01 TUE FEB 08 18 28 19 07 19 32 18 04 05 40 06 06 06 44 04 27 08 56 14 36 10.1 0.0 0 0951 1726 13 WED FEB 09 18 28 19 07 19 33 19 03 05 39 06 05 06 44 04 32 08 59 14 39 10.1 0.0 0 1045 1303 26 THU FEB 10 18 29 19 07 19 33 20 01 05 39 06 05 06 43 04 36 09 03 14 43 10.1 0.5 4 1138 0755 39 FRI FEB 11 18 29 19 08 19 34 20 59 05 39 06 04 06 43 04 41 09 07 14 47 10.1 1.4 14 1229 0219 52 SAT FEB 12 18 30 19 08 19 34 21 57 05 38 06 04 06 42 04 45 09 11 14 50 10.1 2.4 23 1321-0326 66 SUN FEB 13 18 30 19 09 19 35 22 55 05 38 06 03 06 42 04 50 09 15 14 54 10.0 3.3 33 1413-0857 79 MON FEB 14 18 31 19 09 19 35 23 55 05 37 06 03 06 41 04 53 09 19 14 57 10.0 4.3 43 1502-1337 >90 TUE FEB 15 18 31 19 10 19 35 00 56 05 37 06 03 06 41 04 57 09 23 15 01 10.0 5.3 53 1604-1823 >90 WED FEB 16 18 32 19 10 19 36 01 58 05 36 06 02 06 40 05 02 09 27 15 04 10.0 6.4 63 1702-2137 >90 THU FEB 17 18 32 19 10 19 36 03 00 05 36 06 01 06 40 05 06 09 31 15 08 10.0 7.4 73 1802-2332 >90 FRI FEB 18 18 33 19 11 19 36 04 00 14 36 05 35 06 01 06 39 05 10 09 35 15 11 10.0 8.4 84 1902-2359 >90 SAT FEB 19 18 33 19 11 19 37 04 57 15 35 05 35 06 00 06 38 05 15 09 39 15 15 10.0 9.3 93 2002-2259 >90 SUN FEB 20 18 33 19 11 19 37 05 48 16 36 05 34 06 00 06 38 05 19 09 43 15 18 9.9 9.9 100 2059-2040 >90 MON FEB 21 18 34 19 12 19 38 06 34 17 36 05 34 05 59 06 37 05 24 09 47 15 22 9.9 9.9 100 2154-1715 >90 TUE FEB 22 18 34 19 12 19 38 18 33 05 33 05 59 06 36 05 28 09 51 15 25 9.9 9.9 100 2245-1302 >90 WED FEB 23 18 35 19 13 19 38 19 28 05 32 05 58 06 36 05 32 09 55 15 28 9.9 9.9 100 2334-0819 >90 THU FEB 24 18 35 19 13 19 39 20 21 05 32 05 57 06 35 05 37 09 59 15 32 9.9 9.2 92 0020-0321 >90 FRI FEB 25 18 35 19 13 19 39 21 12 05 31 05 57 06 34 05 41 10 03 15 34 9.9 8.3 84 0105 0140 >90 SAT FEB 26 18 36 19 14 19 39 22 02 05 30 05 56 06 34 05 45 10 07 15 37 9.9 7.5 75 0150 0632 >90 SUN FEB 27 18 36 19 14 19 40 22 51 05 30 05 55 06 33 05 50 10 10 15 41 9.8 6.6 67 0234 1105 >90 MON FEB 28 18 37 19 14 19 40 23 42 05 29 05 55 06 32 05 54 10 14 15 44 9.8 5.8 58 0320 1512 >90 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Feb 01 04:45 UT AND FOLLOWING MORNING. FULL MOON Feb 09 03:39 UT All dates and times are zone HST LAST QUARTER Feb 16 02:37 UT in upper table (except sid time). NEW MOON Feb 23 03:18 UT