KECK OBSERVATORY CALENDAR FOR 2022 -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 2022 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 THU DEC 01 17 52 18 32 18 59 02 04 05 23 05 50 06 30 23 21 04 23 09 47 10.4 3.3 31 0013-0217 65 FRI DEC 02 17 53 18 33 19 00 14 06 02 58 05 23 05 50 06 30 23 26 04 27 09 51 10.4 2.4 23 0100 0351 53 SAT DEC 03 17 53 18 33 19 00 14 42 03 51 05 24 05 51 06 31 23 30 04 31 09 56 10.4 1.6 14 0148 0945 41 SUN DEC 04 17 53 18 33 19 00 15 17 04 46 05 24 05 51 06 32 23 34 04 35 10 00 10.4 0.6 6 0236 1509 29 MON DEC 05 17 53 18 33 19 00 15 55 05 41 05 25 05 52 06 32 23 38 04 39 10 05 10.4 0.0 0 0326 1950 17 TUE DEC 06 17 53 18 34 19 01 16 35 06 37 05 25 05 52 06 33 23 43 04 43 10 09 10.4 0.0 0 0418 2333 07 WED DEC 07 17 53 18 34 19 01 17 20 05 26 05 53 06 33 23 47 04 47 10 14 10.4 0.0 0 0511 2607 08 THU DEC 08 17 54 18 34 19 01 18 08 05 27 05 54 06 34 23 51 04 51 10 19 10.4 0.0 0 0606 2724 19 FRI DEC 09 17 54 18 34 19 01 18 59 05 27 05 54 06 35 23 55 04 55 10 22 10.4 0.0 0 0701 2720 30 SAT DEC 10 17 54 18 35 19 02 19 53 05 28 05 55 06 35 00 00 04 58 10 27 10.4 0.9 8 0754 2558 41 SUN DEC 11 17 55 18 35 19 02 20 46 05 28 05 55 06 36 00 04 05 02 10 31 10.4 1.7 16 0846 2326 52 MON DEC 12 17 55 18 35 19 03 21 39 05 29 05 56 06 36 00 09 05 06 10 36 10.4 2.6 24 0935 1955 63 TUE DEC 13 17 55 18 36 19 03 22 31 05 29 05 56 06 37 00 13 05 10 10 40 10.4 3.5 33 1021 1534 74 WED DEC 14 17 56 18 36 19 03 23 21 05 30 05 57 06 38 00 16 05 14 10 45 10.5 4.3 41 1106 1035 85 THU DEC 15 17 56 18 37 19 04 00 12 05 30 05 58 06 38 00 21 05 18 10 49 10.4 5.1 49 1151 0513 >90 FRI DEC 16 17 56 18 37 19 04 01 03 05 31 05 58 06 39 00 25 05 22 10 54 10.4 6.0 57 1235-0031 >90 SAT DEC 17 17 57 18 37 19 05 01 55 05 32 05 59 06 39 00 30 05 26 10 59 10.4 6.8 65 1321-0623 >90 SUN DEC 18 17 57 18 38 19 05 02 51 14 13 05 32 05 59 06 40 00 34 05 30 11 03 10.4 7.8 74 1409-1209 >90 MON DEC 19 17 58 18 38 19 05 03 51 14 53 05 33 06 00 06 40 00 38 05 34 11 08 10.5 8.8 83 1502-1733 >90 TUE DEC 20 17 58 18 39 19 06 04 55 15 38 05 33 06 00 06 41 00 43 05 38 11 12 10.4 9.8 93 1558-2209 >90 WED DEC 21 17 59 18 39 19 06 06 03 16 31 05 34 06 01 06 41 00 47 05 42 11 17 10.5 10.5 100 1700-2530 >90 THU DEC 22 17 59 18 40 19 07 17 31 05 34 06 01 06 42 00 52 05 46 11 21 10.4 10.4 100 1806-2710 >90 FRI DEC 23 18 00 18 40 19 07 18 38 05 35 06 02 06 42 00 56 05 50 11 26 10.5 10.5 100 1913-2653 >90 SAT DEC 24 18 00 18 41 19 08 19 47 05 35 06 02 06 43 01 01 05 54 11 30 10.5 9.8 93 2018-2439 >90 SUN DEC 25 18 01 18 41 19 08 20 56 05 36 06 03 06 43 01 05 05 58 11 35 10.5 8.7 82 2120-2046 >90 MON DEC 26 18 01 18 42 19 09 22 01 05 36 06 03 06 44 01 10 06 02 11 38 10.5 7.6 72 2218-1540 >90 TUE DEC 27 18 02 18 42 19 10 23 02 05 36 06 04 06 44 01 15 06 06 11 42 10.4 6.6 62 2311-0948 >90 WED DEC 28 18 02 18 43 19 10 23 59 05 37 06 04 06 44 01 19 06 09 11 47 10.5 5.6 53 0001-0337 >90 THU DEC 29 18 03 18 44 19 11 00 54 05 37 06 04 06 45 01 24 06 13 11 51 10.4 4.7 45 0049 0234 81 FRI DEC 30 18 04 18 44 19 11 01 48 05 38 06 05 06 45 01 28 06 17 11 56 10.5 3.8 36 0136 0832 69 SAT DEC 31 18 04 18 45 19 12 02 42 05 38 06 05 06 46 01 32 06 21 12 00 10.4 2.9 28 0223 1401 57 ONE LINE REFERS TO EVENING DATE FULL MOON Dec 08 04:08 UT AND FOLLOWING MORNING. LAST QUARTER Dec 16 08:58 UT All dates and times are zone HST NEW MOON Dec 23 10:17 UT in upper table (except sid time). FIRST QUARTER Dec 30 01:20 UT