KECK OBSERVATORY CALENDAR FOR 2007 -ASTRONOMICAL (computed for altitude 4145.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) RA DEC 2007 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight SAT DEC 01 17 52 18 32 18 59 00 47 05 23 05 50 06 30 23 20 04 22 09 45 10.4 5.8 55 1123+0205 SUN DEC 02 17 52 18 33 18 59 01 36 05 23 05 50 06 30 23 24 04 26 09 49 10.4 6.6 63 1206-0335 MON DEC 03 17 53 18 33 19 00 02 24 05 24 05 51 06 31 23 29 04 29 09 54 10.4 7.4 71 1249-0903 TUE DEC 04 17 53 18 33 19 00 03 13 05 24 05 51 06 32 23 33 04 33 09 58 10.4 8.2 79 1333-1409 WED DEC 05 17 53 18 33 19 00 04 04 05 25 05 52 06 32 23 37 04 37 10 03 10.4 9.1 87 1418-1844 THU DEC 06 17 53 18 33 19 00 04 55 05 25 05 52 06 33 23 40 04 41 10 07 10.4 9.9 95 1506-2236 FRI DEC 07 17 53 18 34 19 01 05 49 16 26 05 26 05 53 06 33 23 45 04 45 10 12 10.4 10.4 100 1556-2532 SAT DEC 08 17 54 18 34 19 01 06 43 17 11 05 27 05 54 06 34 23 49 04 49 10 17 10.4 10.4 100 1649-2721 SUN DEC 09 17 54 18 34 19 01 07 36 18 01 05 27 05 54 06 35 23 53 04 53 10 21 10.4 10.4 100 1744-2753 MON DEC 10 17 54 18 35 19 02 18 55 05 28 05 55 06 35 23 58 04 57 10 26 10.4 10.4 100 1839-2704 TUE DEC 11 17 55 18 35 19 02 19 51 05 28 05 55 06 36 00 02 05 01 10 30 10.4 9.6 92 1933-2454 WED DEC 12 17 55 18 35 19 02 20 47 05 29 05 56 06 36 00 06 05 05 10 35 10.5 8.7 83 2026-2130 THU DEC 13 17 55 18 36 19 03 21 43 05 29 05 56 06 37 00 11 05 09 10 39 10.4 7.8 74 2116-1703 FRI DEC 14 17 56 18 36 19 03 22 38 05 30 05 57 06 38 00 15 05 13 10 44 10.5 6.9 65 2205-1145 SAT DEC 15 17 56 18 37 19 04 23 33 05 30 05 58 06 38 00 20 05 17 10 48 10.4 6.0 57 2253-0550 SUN DEC 16 17 56 18 37 19 04 00 28 05 31 05 58 06 39 00 24 05 21 10 53 10.4 5.0 48 2341+0029 MON DEC 17 17 57 18 37 19 05 01 25 05 31 05 59 06 39 00 29 05 25 10 57 10.4 4.1 39 0031+0656 TUE DEC 18 17 57 18 38 19 05 02 25 05 32 05 59 06 40 00 33 05 29 11 02 10.4 3.1 29 0123+1312 WED DEC 19 17 58 18 38 19 05 03 29 05 33 06 00 06 40 00 37 05 33 11 06 10.5 2.1 19 0219+1854 THU DEC 20 17 58 18 39 19 06 04 37 05 33 06 00 06 41 00 42 05 37 11 10 10.4 0.9 8 0319+2332 FRI DEC 21 17 59 18 39 19 06 05 46 05 34 06 01 06 41 00 46 05 40 11 15 10.5 0.0 0 0424+2639 SAT DEC 22 17 59 18 40 19 07 16 27 06 55 05 34 06 01 06 42 00 51 05 44 11 19 10.4 0.0 0 0531+2753 SUN DEC 23 18 00 18 40 19 07 17 34 07 57 05 35 06 02 06 42 00 55 05 48 11 24 10.5 0.0 0 0637+2706 MON DEC 24 18 00 18 41 19 08 18 41 05 35 06 02 06 43 00 59 05 52 11 28 10.5 0.0 0 0741+2427 TUE DEC 25 18 01 18 41 19 08 19 47 05 35 06 03 06 43 01 03 05 56 11 32 10.5 0.6 6 0839+2021 WED DEC 26 18 01 18 42 19 09 20 49 05 36 06 03 06 44 01 08 06 00 11 37 10.5 1.7 15 0933+1517 THU DEC 27 18 02 18 42 19 10 21 46 05 36 06 04 06 44 01 13 06 04 11 41 10.4 2.6 24 1022+0939 FRI DEC 28 18 02 18 43 19 10 22 39 05 37 06 04 06 44 01 17 06 08 11 46 10.5 3.5 33 1108+0347 SAT DEC 29 18 03 18 43 19 11 23 29 05 37 06 04 06 45 01 22 06 12 11 50 10.4 4.3 41 1152-0202 SUN DEC 30 18 04 18 44 19 11 00 18 05 38 06 05 06 45 01 26 06 16 11 55 10.5 5.1 48 1236-0739 MON DEC 31 18 04 18 45 19 12 01 07 05 38 06 05 06 46 01 31 06 20 11 59 10.4 5.9 56 1319-1254 ONE LINE REFERS TO EVENING DATE LAST QUARTER DEC 01 12:46 UT AND FOLLOWING MORNING. NEW MOON DEC 09 17:44 UT All dates and times are zone HST FIRST QUARTER DEC 17 10:20 UT in upper table (except sid time). FULL MOON DEC 24 01:19 UT LAST QUARTER DEC 31 07:53 UT