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 SUN MAY 01 18 56 19 36 20 03 02 33 14 05 04 34 05 02 05 42 10 23 14 21 18 56 8.5 6.5 76 2253-0650 >90 MON MAY 02 18 56 19 36 20 04 03 20 15 04 04 34 05 01 05 41 10 28 14 25 19 00 8.5 7.3 85 2347-0227 >90 TUE MAY 03 18 56 19 36 20 04 04 07 16 05 04 33 05 01 05 41 10 32 14 29 19 03 8.5 8.0 94 0043 0209 >90 WED MAY 04 18 57 19 37 20 05 04 56 17 08 04 32 05 00 05 40 10 37 14 33 19 06 8.4 8.4 100 0140 0640 >90 THU MAY 05 18 57 19 37 20 05 05 47 18 12 04 31 04 59 05 40 10 41 14 37 19 09 8.4 8.4 100 0238 1047 >90 FRI MAY 06 18 58 19 38 20 06 06 41 19 17 04 31 04 59 05 39 10 46 14 41 19 13 8.4 8.4 100 0338 1410 >90 SAT MAY 07 18 58 19 38 20 06 20 21 04 30 04 58 05 39 10 50 14 45 19 15 8.4 8.1 97 0438 1634 >90 SUN MAY 08 18 58 19 39 20 07 21 23 04 29 04 58 05 38 10 55 14 49 19 18 8.4 7.1 84 0539 1748 >90 MON MAY 09 18 59 19 39 20 08 22 22 04 29 04 57 05 38 11 00 14 53 19 22 8.3 6.1 73 0638 1751 >90 TUE MAY 10 18 59 19 40 20 08 23 16 04 28 04 57 05 37 11 04 14 57 19 25 8.3 5.2 62 0735 1649 >90 WED MAY 11 19 00 19 40 20 09 00 05 04 28 04 56 05 37 11 09 15 01 19 29 8.3 4.4 52 0835 1424 >90 THU MAY 12 19 00 19 41 20 09 00 50 04 27 04 55 05 36 11 13 15 04 19 32 8.3 3.6 43 0922 1211 82 FRI MAY 13 19 00 19 41 20 10 01 31 04 26 04 55 05 36 11 18 15 08 19 35 8.3 2.9 35 1011 0900 72 SAT MAY 14 19 01 19 42 20 10 02 10 04 26 04 54 05 35 11 22 15 12 19 39 8.3 2.3 27 1058 0528 63 SUN MAY 15 19 01 19 42 20 11 02 47 04 25 04 54 05 35 11 27 15 16 19 42 8.2 1.6 19 1144 0143 55 MON MAY 16 19 02 19 43 20 12 14 47 03 24 04 25 04 54 05 35 11 32 15 20 19 46 8.2 1.0 12 1230-0205 47 TUE MAY 17 19 02 19 43 20 12 15 35 04 01 04 24 04 53 05 34 11 36 15 24 19 49 8.2 0.4 4 1316-0549 41 WED MAY 18 19 03 19 44 20 13 16 23 04 39 04 24 04 53 05 34 11 40 15 28 19 53 8.2 0.0 0 1402-0920 36 THU MAY 19 19 03 19 44 20 13 17 11 05 18 04 23 04 52 05 34 11 44 15 32 19 56 8.2 0.0 0 1449-1231 34 FRI MAY 20 19 03 19 45 20 14 18 01 06 00 04 23 04 52 05 33 11 49 15 36 20 00 8.1 0.0 0 1537-1513 35 SAT MAY 21 19 04 19 45 20 14 18 51 06 44 04 23 04 52 05 33 11 53 15 40 20 04 8.1 0.0 0 1628-1718 39 SUN MAY 22 19 04 19 46 20 15 19 41 04 22 04 51 05 33 11 58 15 44 20 07 8.1 0.0 0 1719-1838 45 MON MAY 23 19 05 19 46 20 15 20 32 04 22 04 51 05 33 12 02 15 48 20 11 8.1 0.3 3 1812-1906 53 TUE MAY 24 19 05 19 47 20 16 21 22 04 21 04 51 05 32 12 07 15 52 20 13 8.1 1.1 13 1905-1839 61 WED MAY 25 19 06 19 47 20 17 22 11 04 21 04 50 05 32 12 12 15 56 20 17 8.1 1.9 23 1959-1717 70 THU MAY 26 19 06 19 48 20 17 22 59 04 21 04 50 05 32 12 16 16 00 20 21 8.1 2.7 33 2052-1457 80 FRI MAY 27 19 06 19 48 20 18 23 45 04 20 04 50 05 32 12 21 16 04 20 24 8.0 3.5 42 2143-1146 90 SAT MAY 28 19 07 19 49 20 18 00 30 04 20 04 50 05 32 12 25 16 08 20 28 8.0 4.2 52 2238-0815 >90 SUN MAY 29 19 07 19 49 20 19 01 14 04 20 04 49 05 31 12 30 16 11 20 32 8.0 4.9 61 2331-0405 >90 MON MAY 30 19 08 19 50 20 19 01 59 04 20 04 49 05 31 12 34 16 15 20 36 8.0 5.7 70 0025 0023 >90 TUE MAY 31 19 08 19 50 20 20 02 45 14 52 04 19 04 49 05 31 12 39 16 19 20 39 8.0 6.4 80 0119 0452 >90 ONE LINE REFERS TO EVENING DATE NEW MOON May 06 19:29 UT AND FOLLOWING MORNING. FIRST QUARTER May 13 17:03 UT All dates and times are zone HST FULL MOON May 21 21:17 UT in upper table (except sid time). LAST QUARTER May 29 12:13 UT