KECK OBSERVATORY CALENDAR FOR 2016 -NAUTICAL (computed for altitude 4160.0 m) NAUTICAL(12 deg) TWILIGHT/DAWN MOON(midnight) DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (12 deg) Zenith 2016 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ RA DEC Dist 12 18 18 12 12 12 h h % h m d m deg FRI APR 01 18 46 19 24 19 50 02 18 05 01 05 27 06 05 07 46 12 23 17 51 10.1 6.9 68 2027-1532 >90 SAT APR 02 18 47 19 24 19 51 03 07 14 21 05 00 05 26 06 04 07 50 12 27 17 54 10.0 7.7 76 2122-1245 >90 SUN APR 03 18 47 19 25 19 51 03 56 15 20 04 59 05 25 06 03 07 55 12 31 17 57 10.0 8.5 85 2217-0911 >90 MON APR 04 18 47 19 25 19 51 04 44 16 20 04 58 05 24 06 02 07 59 12 35 18 00 10.0 9.3 93 2313-0459 >90 TUE APR 05 18 47 19 25 19 52 05 32 17 23 04 57 05 23 06 01 08 03 12 39 18 02 10.0 10.0 100 0009-0024 >90 WED APR 06 18 48 19 26 19 52 06 21 18 26 04 56 05 22 06 00 08 08 12 43 18 05 9.9 9.9 100 0107 0415 >90 THU APR 07 18 48 19 26 19 52 19 30 04 55 05 21 06 00 08 12 12 46 18 08 9.9 9.8 99 0204 0838 >90 FRI APR 08 18 48 19 26 19 53 20 34 04 54 05 20 05 59 08 16 12 50 18 11 9.9 8.8 88 0303 1225 >90 SAT APR 09 18 48 19 27 19 53 21 38 04 53 05 20 05 58 08 21 12 54 18 15 9.9 7.7 77 0403 1520 >90 SUN APR 10 18 49 19 27 19 53 22 40 04 52 05 19 05 57 08 25 12 58 18 18 9.9 6.7 67 0502 1711 >90 MON APR 11 18 49 19 27 19 54 23 39 04 51 05 18 05 56 08 28 13 02 18 21 9.8 5.7 57 0601 1754 >90 TUE APR 12 18 49 19 28 19 54 00 33 04 50 05 17 05 55 08 33 13 06 18 24 9.8 4.7 48 0659 1729 86 WED APR 13 18 50 19 28 19 55 01 23 04 50 05 16 05 55 08 37 13 10 18 27 9.8 3.9 39 0753 1611 75 THU APR 14 18 50 19 29 19 55 02 09 04 49 05 15 05 54 08 42 13 14 18 30 9.8 3.1 31 0845 1403 64 FRI APR 15 18 50 19 29 19 56 02 52 04 48 05 14 05 53 08 46 13 18 18 33 9.7 2.4 24 0936 1115 54 SAT APR 16 18 51 19 29 19 56 14 23 03 32 04 47 05 14 05 52 08 50 13 22 18 37 9.7 1.7 17 1024 0758 45 SUN APR 17 18 51 19 30 19 56 15 13 04 09 04 46 05 13 05 51 08 55 13 26 18 40 9.7 1.1 10 1111 0422 36 MON APR 18 18 51 19 30 19 57 16 02 04 47 04 45 05 12 05 51 08 59 13 30 18 43 9.7 0.4 4 1157 0036 30 TUE APR 19 18 52 19 30 19 57 16 50 05 23 04 44 05 11 05 50 09 03 13 34 18 46 9.7 0.0 0 1243-0310 26 WED APR 20 18 52 19 31 19 58 17 38 06 01 04 43 05 10 05 49 09 08 13 38 18 49 9.7 0.0 0 1329-0650 27 THU APR 21 18 52 19 31 19 58 18 26 06 39 04 42 05 09 05 49 09 12 13 42 18 52 9.6 0.0 0 1415-1014 31 FRI APR 22 18 53 19 32 19 59 19 15 04 42 05 09 05 48 09 17 13 46 18 55 9.6 0.0 0 1503-1315 38 SAT APR 23 18 53 19 32 19 59 20 05 04 41 05 08 05 47 09 21 13 50 18 58 9.6 0.6 5 1552-1544 47 SUN APR 24 18 53 19 32 20 00 20 54 04 40 05 07 05 46 09 25 13 53 19 01 9.6 1.4 14 1642-1733 56 MON APR 25 18 54 19 33 20 00 21 45 04 39 05 06 05 46 09 30 13 57 19 04 9.6 2.2 23 1733-1837 65 TUE APR 26 18 54 19 33 20 01 22 35 04 38 05 06 05 45 09 34 14 01 19 08 9.6 3.0 31 1825-1845 75 WED APR 27 18 54 19 34 20 01 23 24 04 37 05 05 05 44 09 39 14 05 19 11 9.5 3.8 40 1918-1800 86 THU APR 28 18 55 19 34 20 02 00 13 04 37 05 04 05 44 09 43 14 09 19 14 9.5 4.6 48 2012-1628 >90 FRI APR 29 18 55 19 35 20 02 01 00 04 36 05 03 05 43 09 47 14 13 19 17 9.5 5.4 57 2105-1359 >90 SAT APR 30 18 55 19 35 20 03 01 47 04 35 05 03 05 42 09 51 14 17 19 21 9.5 6.2 65 2159-1044 >90 ONE LINE REFERS TO EVENING DATE NEW MOON Apr 07 11:21 UT AND FOLLOWING MORNING. FIRST QUARTER Apr 14 03:59 UT All dates and times are zone HST FULL MOON Apr 22 05:24 UT in upper table (except sid time). LAST QUARTER Apr 30 03:31 UT