KECK OBSERVATORY CALENDAR FOR 2016 -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 2016 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 MON FEB 01 18 24 19 03 19 29 01 32 05 42 06 08 06 47 03 55 08 26 14 09 10.2 6.0 59 1547-1510 >90 TUE FEB 02 18 25 19 04 19 30 02 24 05 41 06 08 06 46 03 59 08 30 14 12 10.2 6.9 67 1637-1702 >90 WED FEB 03 18 25 19 04 19 30 03 16 14 16 05 41 06 07 06 46 04 03 08 34 14 16 10.2 7.8 76 1729-1808 >90 THU FEB 04 18 26 19 05 19 31 04 09 15 06 05 41 06 07 06 46 04 08 08 38 14 20 10.2 8.6 84 1823-1821 >90 FRI FEB 05 18 26 19 05 19 31 05 02 16 01 05 41 06 07 06 45 04 12 08 42 14 24 10.2 9.5 93 1919-1736 >90 SAT FEB 06 18 27 19 06 19 32 05 54 16 58 05 40 06 06 06 45 04 17 08 46 14 27 10.1 10.1 100 2015-1550 >90 SUN FEB 07 18 27 19 06 19 32 06 45 17 58 05 40 06 06 06 45 04 21 08 50 14 31 10.1 10.1 100 2112-1307 >90 MON FEB 08 18 28 19 07 19 32 18 58 05 40 06 06 06 44 04 25 08 54 14 35 10.1 10.1 100 2208-0934 >90 TUE FEB 09 18 28 19 07 19 33 19 59 05 39 06 05 06 44 04 30 08 58 14 38 10.1 9.7 95 2304-0526 >90 WED FEB 10 18 29 19 07 19 33 21 00 05 39 06 05 06 43 04 34 09 02 14 42 10.1 8.7 85 ****-0058 >90 THU FEB 11 18 29 19 08 19 34 22 01 05 39 06 04 06 43 04 39 09 06 14 46 10.1 7.6 75 0054 0333 >90 FRI FEB 12 18 30 19 08 19 34 23 01 05 38 06 04 06 42 04 43 09 10 14 49 10.1 6.6 65 0149 0749 >90 SAT FEB 13 18 30 19 09 19 35 00 02 05 38 06 04 06 42 04 48 09 14 14 52 10.0 5.6 55 0250 1103 >90 SUN FEB 14 18 31 19 09 19 35 01 01 05 37 06 03 06 41 04 52 09 18 14 55 10.0 4.6 45 0341 1436 80 MON FEB 15 18 31 19 10 19 35 01 59 05 37 06 03 06 41 04 56 09 21 14 59 10.0 3.6 36 0438 1647 67 TUE FEB 16 18 32 19 10 19 36 02 56 05 36 06 02 06 40 05 01 09 25 15 02 10.0 2.7 26 0535 1756 54 WED FEB 17 18 32 19 10 19 36 14 06 03 50 05 36 06 01 06 40 05 05 09 29 15 06 10.0 1.8 17 0631 1803 42 THU FEB 18 18 33 19 11 19 36 15 00 04 40 05 35 06 01 06 39 05 09 09 33 15 09 10.0 0.9 9 0727 1710 30 FRI FEB 19 18 33 19 11 19 37 15 54 05 27 05 35 06 00 06 38 05 13 09 37 15 13 10.0 0.1 1 0821 1522 19 SAT FEB 20 18 33 19 11 19 37 16 47 06 11 05 34 06 00 06 38 05 17 09 41 15 16 9.9 0.0 0 0913 1248 10 SUN FEB 21 18 34 19 12 19 38 17 40 06 53 05 34 05 59 06 37 05 22 09 45 15 20 9.9 0.0 0 1003 0940 11 MON FEB 22 18 34 19 12 19 38 18 31 05 33 05 59 06 36 05 26 09 49 15 23 9.9 0.0 0 1051 0608 20 TUE FEB 23 18 35 19 13 19 38 19 21 05 32 05 58 06 36 05 30 09 53 15 26 9.9 0.0 0 1139 0223 31 WED FEB 24 18 35 19 13 19 39 20 10 05 32 05 57 06 35 05 35 09 57 15 30 9.9 0.5 5 1225-0124 42 THU FEB 25 18 35 19 13 19 39 20 58 05 31 05 57 06 34 05 39 10 01 15 33 9.9 1.3 13 1311-0507 53 FRI FEB 26 18 36 19 14 19 39 21 46 05 30 05 56 06 34 05 43 10 05 15 36 9.9 2.1 21 1356-0836 64 SAT FEB 27 18 36 19 14 19 40 22 35 05 30 05 55 06 33 05 48 10 09 15 40 9.8 2.9 29 1443-1145 75 SUN FEB 28 18 37 19 14 19 40 23 24 05 29 05 55 06 32 05 52 10 13 15 43 9.8 3.7 38 1530-1419 85 MON FEB 29 18 37 19 15 19 40 00 14 05 28 05 54 06 32 05 56 10 17 15 46 9.8 4.6 46 1620-1628 >90 ONE LINE REFERS TO EVENING DATE LAST QUARTER Feb 01 03:28 UT AND FOLLOWING MORNING. NEW MOON Feb 08 14:37 UT All dates and times are zone HST FIRST QUARTER Feb 15 07:47 UT in upper table (except sid time). FULL MOON Feb 22 18:20 UT