KECK OBSERVATORY CALENDAR FOR 2019 -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 2019 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 DEC 01 17 52 18 32 18 59 22 50 05 23 05 50 06 30 23 20 04 22 09 46 10.4 6.5 62 2128-1830 >90 MON DEC 02 17 53 18 33 19 00 23 41 05 23 05 50 06 30 23 25 04 26 09 50 10.4 5.7 54 2216-1510 >90 TUE DEC 03 17 53 18 33 19 00 00 31 05 24 05 51 06 31 23 29 04 30 09 55 10.4 4.9 46 2303-1111 86 WED DEC 04 17 53 18 33 19 00 01 19 05 24 05 51 06 32 23 33 04 34 09 59 10.4 4.1 39 2347-0655 75 THU DEC 05 17 53 18 33 19 00 02 07 05 25 05 52 06 32 23 37 04 38 10 04 10.4 3.3 31 0031-0221 64 FRI DEC 06 17 53 18 34 19 01 14 09 02 56 05 25 05 52 06 33 23 42 04 42 10 08 10.4 2.5 23 0115 0224 53 SAT DEC 07 17 53 18 34 19 01 14 44 03 45 05 26 05 53 06 33 23 46 04 46 10 12 10.4 1.7 16 0201 0708 42 SUN DEC 08 17 54 18 34 19 01 15 20 04 37 05 27 05 54 06 34 23 50 04 50 10 17 10.4 0.8 7 0248 1141 30 MON DEC 09 17 54 18 34 19 01 15 59 05 32 05 27 05 54 06 35 23 54 04 53 10 21 10.4 0.0 0 0338 1550 18 TUE DEC 10 17 54 18 35 19 02 16 41 06 29 05 28 05 55 06 35 23 59 04 57 10 26 10.4 0.0 0 0432 1918 06 WED DEC 11 17 55 18 35 19 02 17 29 05 28 05 55 06 36 00 03 05 01 10 30 10.4 0.0 0 0528 2149 07 THU DEC 12 17 55 18 35 19 03 18 22 05 29 05 56 06 36 00 07 05 05 10 35 10.4 0.0 0 0627 2307 19 FRI DEC 13 17 55 18 36 19 03 19 19 05 29 05 56 06 37 00 11 05 09 10 39 10.4 0.3 2 0728 2300 32 SAT DEC 14 17 56 18 36 19 03 20 20 05 30 05 57 06 38 00 15 05 13 10 44 10.5 1.3 12 0828 2127 46 SUN DEC 15 17 56 18 37 19 04 21 22 05 30 05 58 06 38 00 20 05 17 10 48 10.4 2.3 22 0927 1835 59 MON DEC 16 17 56 18 37 19 04 22 24 05 31 05 58 06 39 00 24 05 21 10 53 10.4 3.3 31 1024 1435 72 TUE DEC 17 17 57 18 37 19 05 23 24 05 32 05 59 06 39 00 29 05 25 10 58 10.4 4.3 41 1118 0944 85 WED DEC 18 17 57 18 38 19 05 00 24 05 32 05 59 06 40 00 33 05 29 11 02 10.4 5.3 50 1212 0429 >90 THU DEC 19 17 58 18 38 19 05 01 22 05 33 06 00 06 40 00 37 05 33 11 07 10.5 6.3 60 1303-0102 >90 FRI DEC 20 17 58 18 39 19 06 02 20 05 33 06 00 06 41 00 42 05 37 11 11 10.4 7.2 69 1355-0628 >90 SAT DEC 21 17 59 18 39 19 06 03 19 14 40 05 34 06 01 06 41 00 46 05 41 11 16 10.5 8.2 78 1447-1132 >90 SUN DEC 22 17 59 18 40 19 07 04 18 15 24 05 34 06 01 06 42 00 51 05 45 11 20 10.4 9.2 87 1541-1557 >90 MON DEC 23 18 00 18 40 19 07 05 18 16 11 05 35 06 02 06 42 00 55 05 49 11 25 10.5 10.2 97 1636-1928 >90 TUE DEC 24 18 00 18 41 19 08 06 17 17 01 05 35 06 02 06 43 01 00 05 53 11 29 10.5 10.5 100 1732-2153 >90 WED DEC 25 18 01 18 41 19 08 17 54 05 36 06 03 06 43 01 04 05 57 11 33 10.5 10.5 100 1829-2304 >90 THU DEC 26 18 01 18 42 19 09 18 49 05 36 06 03 06 44 01 09 06 00 11 37 10.5 10.5 100 1925-2259 >90 FRI DEC 27 18 02 18 42 19 10 19 44 05 36 06 04 06 44 01 14 06 04 11 41 10.4 9.9 94 2019-2145 >90 SAT DEC 28 18 02 18 43 19 10 20 38 05 37 06 04 06 44 01 18 06 08 11 46 10.5 9.0 85 2111-1928 >90 SUN DEC 29 18 03 18 44 19 11 21 31 05 37 06 04 06 45 01 23 06 12 11 50 10.4 8.1 77 2200-1623 >90 MON DEC 30 18 04 18 44 19 11 22 22 05 38 06 05 06 45 01 26 06 16 11 55 10.5 7.3 69 2247-1239 >90 TUE DEC 31 18 04 18 45 19 12 23 11 05 38 06 05 06 46 01 31 06 20 11 59 10.4 6.5 61 2332-0827 >90 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Dec 04 06:59 UT AND FOLLOWING MORNING. FULL MOON Dec 12 05:12 UT All dates and times are zone HST LAST QUARTER Dec 19 04:58 UT in upper table (except sid time). NEW MOON Dec 26 05:13 UT