KECK OBSERVATORY CALENDAR FOR 2041 -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 2041 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 01 56 05 23 05 50 06 30 23 23 04 25 09 48 10.4 3.4 33 0007-0226 67 MON DEC 02 17 53 18 33 19 00 14 00 02 54 05 23 05 50 06 30 23 28 04 29 09 52 10.4 2.5 23 0058 0414 54 TUE DEC 03 17 53 18 33 19 00 14 39 03 54 05 24 05 51 06 31 23 32 04 32 09 57 10.4 1.5 14 0149 1043 40 WED DEC 04 17 53 18 33 19 00 15 19 04 55 05 24 05 51 06 32 23 36 04 36 10 01 10.4 0.5 4 0243 1638 27 THU DEC 05 17 53 18 33 19 00 16 02 05 58 05 25 05 52 06 32 23 40 04 40 10 06 10.4 0.0 0 0339 2136 14 FRI DEC 06 17 53 18 34 19 01 16 50 05 25 05 52 06 33 23 44 04 44 10 10 10.4 0.0 0 0438 2516 06 SAT DEC 07 17 53 18 34 19 01 17 42 05 26 05 53 06 33 23 48 04 48 10 15 10.4 0.0 0 0539 2723 14 SUN DEC 08 17 54 18 34 19 01 18 38 05 27 05 54 06 34 23 52 04 52 10 20 10.4 0.0 0 0640 2750 26 MON DEC 09 17 54 18 34 19 01 19 36 05 27 05 54 06 35 23 56 04 56 10 24 10.4 0.6 5 0738 2641 38 TUE DEC 10 17 54 18 35 19 02 20 34 05 28 05 55 06 35 00 01 05 00 10 29 10.4 1.5 14 0833 2411 49 WED DEC 11 17 55 18 35 19 02 21 30 05 28 05 55 06 36 00 05 05 04 10 33 10.4 2.5 23 0925 2035 61 THU DEC 12 17 55 18 35 19 03 22 23 05 29 05 56 06 36 00 10 05 08 10 38 10.4 3.3 31 1012 1611 72 FRI DEC 13 17 55 18 36 19 03 23 13 05 29 05 56 06 37 00 14 05 12 10 42 10.4 4.2 39 1057 1113 83 SAT DEC 14 17 56 18 36 19 03 00 02 05 30 05 57 06 38 00 18 05 16 10 47 10.5 5.0 47 1140 0559 >90 SUN DEC 15 17 56 18 37 19 04 00 50 05 30 05 58 06 38 00 23 05 20 10 51 10.4 5.8 55 1222 0031 >90 MON DEC 16 17 56 18 37 19 04 01 38 05 31 05 58 06 39 00 27 05 24 10 56 10.4 6.6 62 1305-0500 >90 TUE DEC 17 17 57 18 37 19 05 02 27 05 32 05 59 06 39 00 32 05 28 11 01 10.4 7.4 70 1348-1024 >90 WED DEC 18 17 57 18 38 19 05 03 19 14 32 05 32 05 59 06 40 00 36 05 32 11 05 10.4 8.2 78 1434-1530 >90 THU DEC 19 17 58 18 38 19 05 04 14 15 10 05 33 06 00 06 40 00 40 05 36 11 09 10.5 9.1 87 1523-2004 >90 FRI DEC 20 17 58 18 39 19 06 05 13 15 53 05 33 06 00 06 41 00 45 05 39 11 13 10.4 10.1 96 1615-2350 >90 SAT DEC 21 17 59 18 39 19 06 06 15 16 42 05 34 06 01 06 41 00 49 05 43 11 18 10.5 10.5 100 1713-2626 >90 SUN DEC 22 17 59 18 40 19 07 17 37 05 34 06 01 06 42 00 54 05 47 11 22 10.4 10.4 100 1813-2735 >90 MON DEC 23 18 00 18 40 19 07 18 39 05 35 06 02 06 42 00 58 05 51 11 27 10.5 10.5 100 1915-2703 >90 TUE DEC 24 18 00 18 41 19 08 19 44 05 35 06 02 06 43 01 02 05 55 11 31 10.5 9.8 94 2016-2449 >90 WED DEC 25 18 01 18 41 19 08 20 48 05 35 06 03 06 43 01 06 05 59 11 35 10.5 8.8 84 2115-2101 >90 THU DEC 26 18 01 18 42 19 09 21 52 05 36 06 03 06 44 01 11 06 03 11 40 10.5 7.7 74 2211-1600 >90 FRI DEC 27 18 02 18 42 19 10 22 53 05 36 06 04 06 44 01 16 06 07 11 44 10.4 6.7 64 2304-1006 >90 SAT DEC 28 18 02 18 43 19 10 23 51 05 37 06 04 06 44 01 20 06 11 11 49 10.5 5.8 55 2355-0341 >90 SUN DEC 29 18 03 18 44 19 11 00 49 05 37 06 04 06 45 01 25 06 15 11 53 10.4 4.8 46 0046 0251 82 MON DEC 30 18 04 18 44 19 11 01 47 05 38 06 05 06 45 01 29 06 19 11 58 10.5 3.8 36 0136 0917 69 TUE DEC 31 18 04 18 45 19 12 02 46 05 38 06 05 06 46 01 34 06 23 12 02 10.4 2.9 27 0227 1512 56 ONE LINE REFERS TO EVENING DATE FULL MOON Dec 07 17:42 UT AND FOLLOWING MORNING. LAST QUARTER Dec 15 13:33 UT All dates and times are zone HST NEW MOON Dec 23 08:05 UT in upper table (except sid time). FIRST QUARTER Dec 30 03:45 UT