KECK OBSERVATORY CALENDAR FOR 2027 -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 2027 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 FRI JAN 01 18 05 18 45 19 12 02 33 05 39 06 06 06 46 01 37 06 25 12 05 10.4 7.3 70 1436-2030 >90 SAT JAN 02 18 06 18 46 19 13 03 27 14 10 05 39 06 06 06 46 01 42 06 29 12 09 10.4 8.2 78 1526-2356 >90 SUN JAN 03 18 06 18 47 19 14 04 21 14 54 05 39 06 06 06 47 01 46 06 33 12 13 10.4 9.1 87 1617-2616 >90 MON JAN 04 18 07 18 47 19 14 05 14 15 41 05 40 06 07 06 47 01 50 06 37 12 18 10.4 10.0 95 1710-2725 >90 TUE JAN 05 18 07 18 48 19 15 06 04 16 32 05 40 06 07 06 47 01 55 06 41 12 22 10.4 10.4 100 1802-2720 >90 WED JAN 06 18 08 18 48 19 15 06 51 17 25 05 40 06 07 06 47 01 59 06 45 12 26 10.4 10.4 100 1854-2601 >90 THU JAN 07 18 09 18 49 19 16 18 18 05 41 06 07 06 48 02 04 06 49 12 31 10.4 10.4 100 1944-2334 >90 FRI JAN 08 18 09 18 50 19 16 19 11 05 41 06 08 06 48 02 08 06 53 12 35 10.4 10.4 100 2032-2008 >90 SAT JAN 09 18 10 18 50 19 17 20 02 05 41 06 08 06 48 02 13 06 57 12 39 10.4 9.7 92 2119-1553 >90 SUN JAN 10 18 11 18 51 19 18 20 53 05 41 06 08 06 48 02 18 07 01 12 43 10.4 8.8 84 2203-1100 >90 MON JAN 11 18 11 18 51 19 18 21 42 05 42 06 08 06 48 02 22 07 05 12 48 10.4 8.0 76 2247-0539 >90 TUE JAN 12 18 12 18 52 19 19 22 32 05 42 06 09 06 49 02 27 07 09 12 52 10.4 7.2 69 2331 0001 >90 WED JAN 13 18 12 18 53 19 19 23 23 05 42 06 09 06 49 02 31 07 13 12 56 10.4 6.3 60 0015 0548 >90 THU JAN 14 18 13 18 53 19 20 00 16 05 42 06 09 06 49 02 36 07 17 13 00 10.4 5.4 52 0104 1122 90 FRI JAN 15 18 14 18 54 19 20 01 13 05 42 06 09 06 49 02 40 07 21 13 03 10.4 4.5 43 0152 1654 77 SAT JAN 16 18 14 18 54 19 21 02 15 05 42 06 09 06 49 02 45 07 24 13 07 10.3 3.4 33 0247 2139 64 SUN JAN 17 18 15 18 55 19 22 03 20 05 42 06 09 06 49 02 50 07 28 13 11 10.3 2.4 22 0347 2519 51 MON JAN 18 18 16 18 55 19 22 14 04 04 28 05 43 06 09 06 49 02 54 07 32 13 16 10.3 1.2 12 0452 2725 37 TUE JAN 19 18 16 18 56 19 23 15 07 05 33 05 43 06 09 06 49 02 59 07 36 13 20 10.3 0.2 1 0600 2734 23 WED JAN 20 18 17 18 57 19 23 16 17 06 34 05 43 06 09 06 49 03 03 07 40 13 24 10.3 0.0 0 0709 2537 09 THU JAN 21 18 18 18 57 19 24 17 28 05 43 06 09 06 49 03 07 07 44 13 28 10.3 0.0 0 0814 2145 07 FRI JAN 22 18 18 18 58 19 24 18 37 05 43 06 09 06 49 03 11 07 48 13 32 10.3 0.0 0 0915 1624 21 SAT JAN 23 18 19 18 58 19 25 19 42 05 43 06 09 06 49 03 16 07 52 13 36 10.3 0.3 2 1012 1009 35 SUN JAN 24 18 19 18 59 19 25 20 43 05 43 06 09 06 49 03 20 07 56 13 40 10.3 1.3 12 1105 0329 49 MON JAN 25 18 20 18 59 19 26 21 41 05 43 06 09 06 48 03 25 08 00 13 44 10.3 2.2 21 1155-0307 62 TUE JAN 26 18 21 19 00 19 26 22 37 05 43 06 09 06 48 03 29 08 04 13 48 10.3 3.2 30 1244-0921 75 WED JAN 27 18 21 19 01 19 27 23 32 05 42 06 09 06 48 03 34 08 08 13 51 10.2 4.1 39 1332-1448 87 THU JAN 28 18 22 19 01 19 27 00 27 05 42 06 09 06 48 03 38 08 12 13 55 10.2 5.0 48 1422-1937 >90 FRI JAN 29 18 22 19 02 19 28 01 21 05 42 06 08 06 48 03 43 08 16 13 59 10.2 5.9 57 1513-2322 >90 SAT JAN 30 18 23 19 02 19 28 02 16 05 42 06 08 06 47 03 47 08 20 14 03 10.2 6.8 66 1605-2601 >90 SUN JAN 31 18 24 19 03 19 29 03 09 05 42 06 08 06 47 03 52 08 24 14 07 10.2 7.7 75 1657-2726 >90 ONE LINE REFERS TO EVENING DATE NEW MOON Jan 07 20:24 UT AND FOLLOWING MORNING. FIRST QUARTER Jan 15 20:35 UT All dates and times are zone HST FULL MOON Jan 22 12:16 UT in upper table (except sid time). LAST QUARTER Jan 29 10:55 UT