KECK OBSERVATORY CALENDAR FOR 2008 -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 2008 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight MON DEC 01 17 52 18 33 18 59 21 26 05 23 05 50 06 30 23 23 04 25 09 48 10.4 8.0 76 2020-2017 TUE DEC 02 17 53 18 33 19 00 22 18 05 24 05 51 06 31 23 28 04 29 09 53 10.4 7.1 68 2107-1609 WED DEC 03 17 53 18 33 19 00 23 09 05 24 05 51 06 32 23 32 04 32 09 57 10.4 6.3 60 2153-1117 THU DEC 04 17 53 18 33 19 00 00 00 05 25 05 52 06 32 23 36 04 36 10 02 10.4 5.4 51 2239-0553 FRI DEC 05 17 53 18 33 19 00 00 52 05 25 05 52 06 33 23 40 04 40 10 06 10.4 4.5 43 2324-0006 SAT DEC 06 17 53 18 34 19 01 01 45 05 26 05 53 06 33 23 44 04 44 10 11 10.4 3.7 35 0012+0551 SUN DEC 07 17 54 18 34 19 01 02 43 05 27 05 54 06 34 23 48 04 48 10 16 10.4 2.7 26 0102+1146 MON DEC 08 17 54 18 34 19 01 03 44 05 27 05 54 06 35 23 52 04 52 10 20 10.4 1.7 16 0156+1717 TUE DEC 09 17 54 18 35 19 02 04 50 05 28 05 55 06 35 23 57 04 56 10 25 10.4 0.6 6 0255+2159 WED DEC 10 17 55 18 35 19 02 06 00 05 28 05 55 06 36 00 01 05 00 10 29 10.4 0.0 0 0358+2521 THU DEC 11 17 55 18 35 19 02 16 46 07 09 05 29 05 56 06 36 00 05 05 04 10 34 10.5 0.0 0 0506+2656 FRI DEC 12 17 55 18 36 19 03 17 53 05 29 05 56 06 37 00 10 05 08 10 38 10.4 0.0 0 0614+2629 SAT DEC 13 17 56 18 36 19 03 19 03 05 30 05 57 06 38 00 14 05 12 10 43 10.5 0.0 0 0721+2403 SUN DEC 14 17 56 18 37 19 04 20 12 05 30 05 58 06 38 00 19 05 16 10 47 10.4 1.1 10 0823+2000 MON DEC 15 17 56 18 37 19 04 21 18 05 31 05 58 06 39 00 23 05 20 10 52 10.4 2.2 21 0920+1448 TUE DEC 16 17 57 18 37 19 05 22 18 05 31 05 59 06 39 00 28 05 24 10 56 10.4 3.2 30 1013+0859 WED DEC 17 17 57 18 38 19 05 23 15 05 32 05 59 06 40 00 32 05 28 11 01 10.4 4.2 39 1102+0255 THU DEC 18 17 58 18 38 19 05 00 09 05 33 06 00 06 40 00 36 05 32 11 06 10.5 5.1 48 1149-0303 FRI DEC 19 17 58 18 39 19 06 01 01 05 33 06 00 06 41 00 41 05 36 11 09 10.4 5.9 56 1235-0844 SAT DEC 20 17 59 18 39 19 06 01 53 05 34 06 01 06 41 00 45 05 39 11 14 10.5 6.8 64 1321-1356 SUN DEC 21 17 59 18 40 19 07 02 45 05 34 06 01 06 42 00 50 05 43 11 18 10.4 7.6 73 1408-1829 MON DEC 22 18 00 18 40 19 07 03 37 05 35 06 02 06 42 00 54 05 47 11 23 10.5 8.5 81 1457-2212 TUE DEC 23 18 00 18 41 19 08 04 31 05 35 06 02 06 43 00 59 05 51 11 27 10.5 9.4 89 1548-2458 WED DEC 24 18 01 18 41 19 08 05 23 05 35 06 03 06 43 01 02 05 55 11 31 10.5 10.2 98 1640-2636 THU DEC 25 18 01 18 42 19 09 06 15 16 44 05 36 06 03 06 44 01 07 05 59 11 36 10.5 10.5 100 1733-2700 FRI DEC 26 18 02 18 42 19 10 07 03 17 36 05 36 06 04 06 44 01 12 06 03 11 40 10.4 10.4 100 1826-2611 SAT DEC 27 18 02 18 43 19 10 07 48 18 28 05 37 06 04 06 44 01 16 06 07 11 45 10.5 10.5 100 1918-2410 SUN DEC 28 18 03 18 43 19 11 19 21 05 37 06 04 06 45 01 21 06 11 11 49 10.4 10.3 98 2007-2105 MON DEC 29 18 04 18 44 19 11 20 14 05 38 06 05 06 45 01 25 06 15 11 54 10.5 9.4 89 2055-1706 TUE DEC 30 18 04 18 45 19 12 21 05 05 38 06 05 06 46 01 30 06 19 11 58 10.4 8.5 81 2142-1224 WED DEC 31 18 05 18 45 19 12 21 55 05 38 06 06 06 46 01 34 06 23 12 02 10.4 7.7 73 2227-0709 ONE LINE REFERS TO EVENING DATE FIRST QUARTER DEC 05 21:30 UT AND FOLLOWING MORNING. FULL MOON DEC 12 16:42 UT All dates and times are zone HST LAST QUARTER DEC 19 10:32 UT in upper table (except sid time). NEW MOON DEC 27 12:26 UT