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 SAT JAN 01 18 05 18 45 19 12 02 29 05 39 06 06 06 46 01 38 06 27 12 07 10.4 3.2 30 0215 1538 60 SUN JAN 02 18 06 18 46 19 13 03 25 05 39 06 06 06 46 01 43 06 31 12 11 10.4 2.2 21 0308 1830 48 MON JAN 03 18 06 18 47 19 14 14 29 04 20 05 39 06 06 06 47 01 48 06 35 12 15 10.4 1.3 12 0402 2024 36 TUE JAN 04 18 07 18 47 19 14 15 18 05 12 05 40 06 07 06 47 01 52 06 39 12 20 10.4 0.5 4 0456 2114 24 WED JAN 05 18 07 18 48 19 15 16 09 06 02 05 40 06 07 06 47 01 57 06 43 12 24 10.4 0.0 0 0550 2059 12 THU JAN 06 18 08 18 48 19 15 17 01 06 48 05 40 06 07 06 47 02 01 06 47 12 28 10.4 0.0 0 0643 1943 01 FRI JAN 07 18 09 18 49 19 16 17 53 05 41 06 07 06 48 02 06 06 51 12 33 10.4 0.0 0 0734 1733 10 SAT JAN 08 18 09 18 50 19 16 18 44 05 41 06 08 06 48 02 10 06 55 12 37 10.4 0.0 0 0823 1437 22 SUN JAN 09 18 10 18 50 19 17 19 34 05 41 06 08 06 48 02 15 06 59 12 41 10.4 0.3 2 0910 1107 33 MON JAN 10 18 11 18 51 19 18 20 23 05 41 06 08 06 48 02 20 07 03 12 44 10.4 1.1 10 0956 0711 44 TUE JAN 11 18 11 18 51 19 18 21 11 05 42 06 08 06 48 02 24 07 06 12 49 10.4 1.9 18 1040 0259 55 WED JAN 12 18 12 18 52 19 19 21 59 05 42 06 09 06 49 02 29 07 10 12 53 10.4 2.7 25 1125-0120 66 THU JAN 13 18 12 18 53 19 19 22 47 05 42 06 09 06 49 02 33 07 14 12 57 10.4 3.5 33 1210-0535 77 FRI JAN 14 18 13 18 53 19 20 23 37 05 42 06 09 06 49 02 38 07 18 13 01 10.4 4.3 41 1255-0938 88 SAT JAN 15 18 14 18 54 19 20 00 29 05 42 06 09 06 49 02 41 07 22 13 05 10.4 5.1 49 1345-1332 >90 SUN JAN 16 18 14 18 54 19 21 01 23 05 42 06 09 06 49 02 46 07 26 13 09 10.3 6.0 58 1436-1648 >90 MON JAN 17 18 15 18 55 19 22 02 20 05 42 06 09 06 49 02 51 07 30 13 13 10.3 7.0 67 1530-1919 >90 TUE JAN 18 18 16 18 55 19 22 03 19 14 07 05 43 06 09 06 49 02 55 07 34 13 18 10.3 7.9 76 1627-2051 >90 WED JAN 19 18 16 18 56 19 23 04 19 15 03 05 43 06 09 06 49 03 00 07 38 13 22 10.3 8.9 86 1727-2110 >90 THU JAN 20 18 17 18 57 19 23 05 18 16 04 05 43 06 09 06 49 03 04 07 42 13 26 10.3 9.9 95 1828-2009 >90 FRI JAN 21 18 18 18 57 19 24 06 14 17 09 05 43 06 09 06 49 03 09 07 46 13 30 10.3 10.3 100 1930-1746 >90 SAT JAN 22 18 18 18 58 19 24 18 14 05 43 06 09 06 49 03 13 07 50 13 34 10.3 10.3 100 2030-1410 >90 SUN JAN 23 18 19 18 58 19 25 19 20 05 43 06 09 06 49 03 18 07 54 13 38 10.3 10.3 100 2129-0939 >90 MON JAN 24 18 19 18 59 19 25 20 23 05 43 06 09 06 49 03 22 07 58 13 42 10.3 9.3 90 2226-0434 >90 TUE JAN 25 18 20 18 59 19 26 21 26 05 43 06 09 06 48 03 27 08 02 13 46 10.3 8.3 80 2320 0042 >90 WED JAN 26 18 21 19 00 19 26 22 26 05 43 06 09 06 48 03 31 08 06 13 50 10.3 7.3 70 0014 0549 >90 THU JAN 27 18 21 19 01 19 27 23 25 05 42 06 09 06 48 03 36 08 10 13 52 10.2 6.3 61 0108 1029 >90 FRI JAN 28 18 22 19 01 19 27 00 24 05 42 06 09 06 48 03 40 08 13 13 56 10.2 5.3 51 0202 1421 88 SAT JAN 29 18 22 19 02 19 28 01 20 05 42 06 08 06 48 03 45 08 17 14 00 10.2 4.4 42 0255 1734 76 SUN JAN 30 18 23 19 02 19 28 02 15 05 42 06 08 06 47 03 49 08 21 14 04 10.2 3.4 33 0349 1944 64 MON JAN 31 18 24 19 03 19 29 03 09 05 42 06 08 06 47 03 54 08 25 14 08 10.2 2.5 24 0442 2051 52 ONE LINE REFERS TO EVENING DATE FULL MOON Jan 08 01:38 UT AND FOLLOWING MORNING. LAST QUARTER Jan 16 06:19 UT All dates and times are zone HST NEW MOON Jan 23 04:56 UT in upper table (except sid time). FIRST QUARTER Jan 29 20:47 UT