KECK OBSERVATORY CALENDAR FOR 2020 -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 2020 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 MAR 01 18 37 19 15 19 41 00 44 05 28 05 53 06 31 06 01 10 21 15 50 9.8 4.7 48 0421 1850 84 MON MAR 02 18 38 19 15 19 41 01 39 05 27 05 52 06 30 06 05 10 25 15 53 9.8 3.8 38 0514 2127 72 TUE MAR 03 18 38 19 16 19 41 02 36 05 26 05 52 06 29 06 09 10 29 15 55 9.8 2.8 29 0610 2301 60 WED MAR 04 18 38 19 16 19 41 03 33 05 25 05 51 06 28 06 13 10 33 15 58 9.7 1.9 19 0709 2318 47 THU MAR 05 18 39 19 16 19 42 14 27 04 29 05 25 05 50 06 28 06 18 10 36 16 02 9.7 0.9 9 0810 2208 34 FRI MAR 06 18 39 19 17 19 42 15 31 05 22 05 24 05 49 06 27 06 22 10 40 16 05 9.7 0.0 0 0911 1927 21 SAT MAR 07 18 39 19 17 19 42 16 36 06 13 05 23 05 49 06 26 06 26 10 44 16 08 9.7 0.0 0 1012 1523 09 SUN MAR 08 18 40 19 17 19 43 17 41 05 22 05 48 06 25 06 31 10 48 16 11 9.6 0.0 0 1111 1013 11 MON MAR 09 18 40 19 17 19 43 18 46 05 21 05 47 06 24 06 35 10 52 16 14 9.6 0.0 0 1209 0420 24 TUE MAR 10 18 40 19 18 19 43 19 50 05 21 05 46 06 24 06 38 10 56 16 18 9.6 0.1 1 1306-0148 38 WED MAR 11 18 40 19 18 19 44 20 52 05 20 05 45 06 23 06 43 11 00 16 21 9.6 1.1 11 1402-0744 52 THU MAR 12 18 41 19 18 19 44 21 54 05 19 05 44 06 22 06 47 11 04 16 24 9.6 2.2 22 1458-1306 66 FRI MAR 13 18 41 19 19 19 44 22 56 05 18 05 44 06 21 06 51 11 08 16 27 9.6 3.2 33 1554-1730 80 SAT MAR 14 18 41 19 19 19 44 23 57 05 17 05 43 06 20 06 55 11 12 16 30 9.5 4.2 44 1646-2021 >90 SUN MAR 15 18 42 19 19 19 45 00 55 05 16 05 42 06 19 07 00 11 16 16 33 9.5 5.2 54 1749-2255 >90 MON MAR 16 18 42 19 19 19 45 01 51 05 15 05 41 06 19 07 04 11 20 16 36 9.5 6.1 64 1845-2341 >90 TUE MAR 17 18 42 19 20 19 45 02 43 05 15 05 40 06 18 07 08 11 24 16 40 9.5 7.0 73 1940-2313 >90 WED MAR 18 18 42 19 20 19 46 03 31 14 18 05 14 05 39 06 17 07 13 11 28 16 43 9.5 7.8 81 2032-2138 >90 THU MAR 19 18 43 19 20 19 46 04 15 15 12 05 13 05 38 06 16 07 17 11 32 16 46 9.5 8.5 89 2123-1906 >90 FRI MAR 20 18 43 19 21 19 46 04 54 16 04 05 12 05 38 06 15 07 21 11 36 16 48 9.4 9.1 96 2211-1548 >90 SAT MAR 21 18 43 19 21 19 47 05 31 16 54 05 11 05 37 06 14 07 26 11 40 16 51 9.4 9.4 100 2256-1155 >90 SUN MAR 22 18 44 19 21 19 47 06 06 17 44 05 10 05 36 06 13 07 30 11 44 16 54 9.4 9.4 100 2341-0738 >90 MON MAR 23 18 44 19 21 19 47 06 40 18 32 05 09 05 35 06 12 07 34 11 47 16 57 9.4 9.4 100 0024-0305 >90 TUE MAR 24 18 44 19 22 19 47 19 19 05 08 05 34 06 12 07 38 11 51 17 00 9.4 9.4 100 0106 0134 >90 WED MAR 25 18 44 19 22 19 48 20 07 05 07 05 33 06 11 07 43 11 55 17 03 9.3 9.0 96 0150 0611 >90 THU MAR 26 18 45 19 22 19 48 20 56 05 06 05 32 06 10 07 47 11 59 17 06 9.3 8.2 87 0234 1037 >90 FRI MAR 27 18 45 19 23 19 48 21 47 05 05 05 31 06 09 07 51 12 03 17 09 9.3 7.3 78 0319 1440 >90 SAT MAR 28 18 45 19 23 19 49 22 38 05 05 05 30 06 08 07 55 12 07 17 13 9.3 6.5 69 0408 1811 >90 SUN MAR 29 18 45 19 23 19 49 23 33 05 04 05 29 06 07 07 59 12 11 17 16 9.2 5.5 59 0458 2057 >90 MON MAR 30 18 46 19 24 19 49 00 27 05 03 05 29 06 06 08 03 12 15 17 19 9.2 4.6 49 0553 2241 87 TUE MAR 31 18 46 19 24 19 50 01 23 05 02 05 28 06 06 08 08 12 19 17 22 9.2 3.6 39 0649 2327 76 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Mar 02 19:58 UT AND FOLLOWING MORNING. FULL MOON Mar 09 17:45 UT All dates and times are zone HST LAST QUARTER Mar 16 09:33 UT in upper table (except sid time). NEW MOON Mar 24 09:27 UT