KECK OBSERVATORY CALENDAR FOR 2050 -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 2050 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 20 49 05 23 05 50 06 30 23 22 04 24 09 48 10.4 1.8 17 0756 1535 51 FRI DEC 02 17 53 18 33 19 00 21 42 05 23 05 50 06 30 23 27 04 28 09 52 10.4 2.7 26 0846 1232 62 SAT DEC 03 17 53 18 33 19 00 22 33 05 24 05 51 06 31 23 31 04 32 09 57 10.4 3.5 34 0934 0900 74 SUN DEC 04 17 53 18 33 19 00 23 22 05 24 05 51 06 32 23 35 04 36 10 01 10.4 4.4 41 1020 0509 85 MON DEC 05 17 53 18 33 19 00 00 10 05 25 05 52 06 32 23 39 04 40 10 06 10.4 5.2 49 1106 0114 >90 TUE DEC 06 17 53 18 34 19 01 00 58 05 25 05 52 06 33 23 44 04 44 10 09 10.4 6.0 57 1150-0245 >90 WED DEC 07 17 53 18 34 19 01 01 47 05 26 05 53 06 33 23 48 04 48 10 14 10.4 6.8 64 1235-0638 >90 THU DEC 08 17 54 18 34 19 01 02 36 14 06 05 27 05 54 06 34 23 52 04 51 10 19 10.4 7.6 72 1320-1018 >90 FRI DEC 09 17 54 18 34 19 01 03 27 14 44 05 27 05 54 06 35 23 56 04 55 10 23 10.4 8.4 80 1408-1335 >90 SAT DEC 10 17 54 18 35 19 02 04 19 15 26 05 28 05 55 06 35 00 01 04 59 10 28 10.4 9.3 88 1457-1621 >90 SUN DEC 11 17 55 18 35 19 02 05 13 16 11 05 28 05 55 06 36 00 04 05 03 10 32 10.4 10.2 97 1549-1824 >90 MON DEC 12 17 55 18 35 19 03 06 08 17 01 05 29 05 56 06 36 00 09 05 07 10 37 10.4 10.4 100 1643-1936 >90 TUE DEC 13 17 55 18 36 19 03 17 54 05 29 05 56 06 37 00 13 05 11 10 41 10.4 10.4 100 1738-1947 >90 WED DEC 14 17 56 18 36 19 03 18 50 05 30 05 57 06 38 00 17 05 15 10 46 10.5 10.5 100 1835-1852 >90 THU DEC 15 17 56 18 37 19 04 19 49 05 30 05 58 06 38 00 22 05 19 10 50 10.4 9.7 92 1931-1653 >90 FRI DEC 16 17 56 18 37 19 04 20 48 05 31 05 58 06 39 00 26 05 23 10 55 10.4 8.7 83 2027-1354 >90 SAT DEC 17 17 57 18 37 19 05 21 47 05 32 05 59 06 39 00 31 05 27 11 00 10.4 7.8 74 2122-1007 >90 SUN DEC 18 17 57 18 38 19 05 22 46 05 32 05 59 06 40 00 35 05 31 11 04 10.4 6.8 64 2215-0545 >90 MON DEC 19 17 58 18 38 19 06 23 45 05 33 06 00 06 40 00 40 05 35 11 09 10.4 5.8 55 2309-0103 >90 TUE DEC 20 17 58 18 39 19 06 00 43 05 33 06 00 06 41 00 44 05 39 11 13 10.4 4.8 46 0002 0340 83 WED DEC 21 17 59 18 39 19 06 01 42 05 34 06 01 06 41 00 48 05 43 11 18 10.5 3.9 36 0056 0816 70 THU DEC 22 17 59 18 40 19 07 02 42 05 34 06 01 06 42 00 53 05 47 11 22 10.4 2.9 27 0151 1223 57 FRI DEC 23 18 00 18 40 19 07 14 06 03 42 05 35 06 02 06 42 00 57 05 51 11 27 10.5 1.9 17 0247 1547 44 SAT DEC 24 18 00 18 41 19 08 14 56 04 41 05 35 06 02 06 43 01 02 05 55 11 30 10.5 0.9 8 0345 1814 31 SUN DEC 25 18 01 18 41 19 08 15 49 05 39 05 35 06 03 06 43 01 06 05 58 11 34 10.5 0.0 0 0444 1935 18 MON DEC 26 18 01 18 42 19 09 16 44 06 34 05 36 06 03 06 44 01 11 06 02 11 39 10.5 0.0 0 0542 1944 05 TUE DEC 27 18 02 18 42 19 10 17 40 05 36 06 04 06 44 01 16 06 06 11 43 10.4 0.0 0 0639 1845 08 WED DEC 28 18 02 18 43 19 10 18 35 05 37 06 04 06 44 01 20 06 10 11 48 10.5 0.0 0 0734 1645 20 THU DEC 29 18 03 18 44 19 11 19 30 05 37 06 04 06 45 01 24 06 14 11 52 10.4 0.3 3 0827 1357 32 FRI DEC 30 18 04 18 44 19 11 20 22 05 38 06 05 06 45 01 28 06 18 11 57 10.5 1.2 11 0916 1034 44 SAT DEC 31 18 04 18 45 19 12 21 13 05 38 06 05 06 46 01 33 06 22 12 01 10.4 2.0 19 1004 0647 55 ONE LINE REFERS TO EVENING DATE LAST QUARTER Dec 06 06:28 UT AND FOLLOWING MORNING. NEW MOON Dec 14 05:17 UT All dates and times are zone HST FIRST QUARTER Dec 21 04:14 UT in upper table (except sid time). FULL MOON Dec 28 05:16 UT