KECK OBSERVATORY CALENDAR FOR 2012 -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 2012 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 DEC 01 17 53 18 33 19 00 20 23 05 23 05 50 06 30 23 24 04 25 09 49 10.4 1.4 13 0735 1712 45 SUN DEC 02 17 53 18 33 19 00 21 15 05 24 05 51 06 31 23 28 04 29 09 54 10.4 2.2 21 0824 1416 56 MON DEC 03 17 53 18 33 19 00 22 06 05 24 05 51 06 32 23 32 04 33 09 57 10.4 3.1 29 0912 1041 68 TUE DEC 04 17 53 18 33 19 00 22 59 05 25 05 52 06 32 23 36 04 37 10 02 10.4 4.0 38 1000 0633 79 WED DEC 05 17 53 18 34 19 01 23 51 05 25 05 52 06 33 23 41 04 40 10 06 10.4 4.8 46 1045 0145 >90 THU DEC 06 17 53 18 34 19 01 00 46 05 26 05 53 06 33 23 45 04 44 10 11 10.4 5.8 55 1138-0237 >90 FRI DEC 07 17 54 18 34 19 01 01 42 05 27 05 54 06 34 23 49 04 48 10 16 10.4 6.7 64 1229-0719 >90 SAT DEC 08 17 54 18 34 19 01 02 42 14 02 05 27 05 54 06 35 23 52 04 52 10 20 10.4 7.7 73 1323-1146 >90 SUN DEC 09 17 54 18 35 19 02 03 44 14 49 05 28 05 55 06 35 23 57 04 56 10 25 10.4 8.7 83 1420-1541 >90 MON DEC 10 17 55 18 35 19 02 04 49 15 41 05 28 05 55 06 36 00 01 05 00 10 29 10.4 9.8 93 1520-1842 >90 TUE DEC 11 17 55 18 35 19 03 05 55 16 39 05 29 05 56 06 36 00 06 05 04 10 34 10.4 10.4 100 1624-2030 >90 WED DEC 12 17 55 18 36 19 03 06 59 17 42 05 29 05 56 06 37 00 10 05 08 10 38 10.4 10.4 100 1728-2052 >90 THU DEC 13 17 56 18 36 19 03 18 47 05 30 05 57 06 38 00 14 05 12 10 43 10.5 10.5 100 1831-1945 >90 FRI DEC 14 17 56 18 37 19 04 19 52 05 30 05 58 06 38 00 19 05 16 10 47 10.4 9.6 92 1933-1718 >90 SAT DEC 15 17 56 18 37 19 04 20 55 05 31 05 58 06 39 00 23 05 20 10 52 10.4 8.6 82 2031-1349 >90 SUN DEC 16 17 57 18 37 19 05 21 56 05 32 05 59 06 39 00 28 05 24 10 57 10.4 7.6 72 2125-0938 >90 MON DEC 17 17 57 18 38 19 05 22 52 05 32 05 59 06 40 00 32 05 28 11 01 10.4 6.7 63 2217-0506 >90 TUE DEC 18 17 58 18 38 19 05 23 47 05 33 06 00 06 40 00 36 05 32 11 06 10.5 5.8 55 2306-0028 >90 WED DEC 19 17 58 18 39 19 06 00 39 05 33 06 00 06 41 00 41 05 36 11 10 10.4 4.9 46 2355 0401 84 THU DEC 20 17 59 18 39 19 06 01 30 05 34 06 01 06 41 00 45 05 40 11 14 10.5 4.1 38 0041 0818 73 FRI DEC 21 17 59 18 40 19 07 02 21 05 34 06 01 06 42 00 50 05 44 11 18 10.4 3.2 30 0129 1209 61 SAT DEC 22 18 00 18 40 19 07 03 11 05 35 06 02 06 42 00 54 05 47 11 23 10.5 2.4 22 0216 1527 50 SUN DEC 23 18 00 18 41 19 08 14 22 04 02 05 35 06 02 06 43 00 59 05 51 11 27 10.5 1.6 14 0305 1804 39 MON DEC 24 18 01 18 41 19 08 15 05 04 52 05 36 06 03 06 43 01 03 05 55 11 32 10.5 0.7 7 0355 1954 28 TUE DEC 25 18 01 18 42 19 09 15 50 05 41 05 36 06 03 06 44 01 07 05 59 11 36 10.5 0.0 0 0447 2050 17 WED DEC 26 18 02 18 42 19 10 16 38 06 29 05 36 06 04 06 44 01 12 06 03 11 40 10.4 0.0 0 0538 2049 06 THU DEC 27 18 02 18 43 19 10 17 28 05 37 06 04 06 44 01 16 06 07 11 45 10.5 0.0 0 0630 1950 05 FRI DEC 28 18 03 18 44 19 11 18 19 05 37 06 04 06 45 01 21 06 11 11 49 10.4 0.0 0 0721 1757 17 SAT DEC 29 18 04 18 44 19 11 19 11 05 38 06 05 06 45 01 25 06 15 11 54 10.5 0.0 0 0811 1513 28 SUN DEC 30 18 04 18 45 19 12 20 03 05 38 06 05 06 46 01 30 06 19 11 58 10.4 0.8 8 0900 1147 40 MON DEC 31 18 05 18 45 19 12 20 55 05 38 06 06 06 46 01 34 06 23 12 02 10.4 1.7 16 0949 0746 51 ONE LINE REFERS TO EVENING DATE LAST QUARTER Dec 06 15:32 UT AND FOLLOWING MORNING. NEW MOON Dec 13 08:41 UT All dates and times are zone HST FIRST QUARTER Dec 20 05:17 UT in upper table (except sid time). FULL MOON Dec 28 10:22 UT