KECK OBSERVATORY CALENDAR FOR 2009 -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 2009 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 TUE DEC 01 17 52 18 32 18 59 17 08 05 23 05 50 06 30 23 22 04 24 09 47 10.4 0.0 0 0439 2536 07 WED DEC 02 17 53 18 33 19 00 18 10 05 23 05 50 06 30 23 27 04 28 09 51 10.4 0.0 0 0545 2542 19 THU DEC 03 17 53 18 33 19 00 19 16 05 24 05 51 06 31 23 31 04 31 09 56 10.4 0.3 2 0650 2358 32 FRI DEC 04 17 53 18 33 19 00 20 23 05 24 05 51 06 32 23 35 04 35 10 00 10.4 1.4 13 0753 2034 46 SAT DEC 05 17 53 18 33 19 00 21 29 05 25 05 52 06 32 23 39 04 39 10 05 10.4 2.5 23 0852 1554 60 SUN DEC 06 17 53 18 34 19 00 22 31 05 25 05 52 06 33 23 42 04 43 10 09 10.4 3.5 33 0947 1022 73 MON DEC 07 17 53 18 34 19 01 23 31 05 26 05 53 06 33 23 47 04 47 10 14 10.4 4.5 43 1038 0421 87 TUE DEC 08 17 54 18 34 19 01 00 28 05 27 05 54 06 34 23 51 04 51 10 19 10.4 5.5 52 1129-0136 >90 WED DEC 09 17 54 18 34 19 01 01 24 05 27 05 54 06 35 23 55 04 55 10 23 10.4 6.4 61 1219-0725 >90 THU DEC 10 17 54 18 35 19 02 02 20 05 28 05 55 06 35 00 00 04 59 10 28 10.4 7.3 69 1308-1245 >90 FRI DEC 11 17 55 18 35 19 02 03 16 14 20 05 28 05 55 06 36 00 04 05 03 10 32 10.4 8.2 78 1358-1725 >90 SAT DEC 12 17 55 18 35 19 03 04 12 15 03 05 29 05 56 06 36 00 09 05 07 10 37 10.4 9.2 87 1450-2111 >90 SUN DEC 13 17 55 18 36 19 03 05 09 15 49 05 29 05 56 06 37 00 13 05 11 10 41 10.4 10.1 96 1543-2352 >90 MON DEC 14 17 56 18 36 19 03 06 04 16 38 05 30 05 57 06 38 00 17 05 15 10 46 10.5 10.5 100 1637-2522 >90 TUE DEC 15 17 56 18 37 19 04 06 56 17 29 05 30 05 58 06 38 00 22 05 19 10 50 10.4 10.4 100 1731-2537 >90 WED DEC 16 17 56 18 37 19 04 18 23 05 31 05 58 06 39 00 26 05 23 10 55 10.4 10.4 100 1824-2438 >90 THU DEC 17 17 57 18 37 19 05 19 16 05 32 05 59 06 39 00 31 05 27 11 00 10.4 10.3 98 1915-2233 >90 FRI DEC 18 17 57 18 38 19 05 20 09 05 32 05 59 06 40 00 35 05 31 11 04 10.4 9.4 89 2004-1931 >90 SAT DEC 19 17 58 18 38 19 05 20 59 05 33 06 00 06 40 00 39 05 35 11 08 10.5 8.6 81 2051-1543 >90 SUN DEC 20 17 58 18 39 19 06 21 49 05 33 06 00 06 41 00 44 05 39 11 12 10.4 7.7 74 2135-1120 >90 MON DEC 21 17 59 18 39 19 06 22 37 05 34 06 01 06 41 00 48 05 42 11 17 10.5 6.9 66 2219-0631 >90 TUE DEC 22 17 59 18 40 19 07 23 26 05 34 06 01 06 42 00 53 05 46 11 21 10.4 6.1 58 2302-0125 >90 WED DEC 23 18 00 18 40 19 07 00 15 05 35 06 02 06 42 00 57 05 50 11 26 10.5 5.3 50 2347 0338 90 THU DEC 24 18 00 18 41 19 08 01 05 05 35 06 02 06 43 01 01 05 54 11 30 10.5 4.5 43 0031 0902 78 FRI DEC 25 18 01 18 41 19 08 01 59 05 36 06 03 06 43 01 05 05 58 11 35 10.5 3.6 34 0119 1404 67 SAT DEC 26 18 01 18 42 19 09 02 56 05 36 06 03 06 44 01 10 06 02 11 39 10.5 2.7 25 0210 1838 54 SUN DEC 27 18 02 18 42 19 10 03 57 05 36 06 04 06 44 01 15 06 06 11 43 10.4 1.6 15 0307 2224 42 MON DEC 28 18 02 18 43 19 10 14 50 05 02 05 37 06 04 06 44 01 19 06 10 11 48 10.5 0.6 5 0408 2456 29 TUE DEC 29 18 03 18 44 19 11 15 48 06 06 05 37 06 04 06 45 01 24 06 14 11 52 10.4 0.0 0 0513 2553 15 WED DEC 30 18 04 18 44 19 11 16 53 05 38 06 05 06 45 01 28 06 18 11 57 10.5 0.0 0 0620 2458 05 THU DEC 31 18 04 18 45 19 12 18 02 05 38 06 05 06 46 01 33 06 22 12 01 10.4 0.0 0 0725 2212 15 ONE LINE REFERS TO EVENING DATE FULL MOON Dec 02 07:31 UT AND FOLLOWING MORNING. LAST QUARTER Dec 09 00:14 UT All dates and times are zone HST NEW MOON Dec 16 12:01 UT in upper table (except sid time). FIRST QUARTER Dec 24 17:37 UT FULL MOON Dec 31 19:13 UT