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 TUE JAN 01 18 05 18 45 19 12 01 57 05 39 06 06 06 46 01 35 06 24 12 04 10.4 6.7 64 1404-1739 WED JAN 02 18 05 18 46 19 13 02 49 05 39 06 06 06 46 01 40 06 28 12 08 10.4 7.6 72 1451-2142 THU JAN 03 18 06 18 47 19 14 03 42 05 39 06 06 06 47 01 45 06 32 12 12 10.4 8.5 81 1541-2454 FRI JAN 04 18 07 18 47 19 14 04 36 05 40 06 07 06 47 01 49 06 36 12 17 10.4 9.4 89 1633-2702 SAT JAN 05 18 07 18 48 19 15 05 29 05 40 06 07 06 47 01 54 06 40 12 21 10.4 10.2 98 1728-2755 SUN JAN 06 18 08 18 48 19 15 06 21 16 48 05 40 06 07 06 47 01 58 06 44 12 24 10.4 10.4 100 1823-2726 MON JAN 07 18 09 18 49 19 16 07 10 17 44 05 41 06 07 06 48 02 03 06 47 12 29 10.4 10.4 100 1918-2534 TUE JAN 08 18 09 18 49 19 16 07 56 18 41 05 41 06 08 06 48 02 07 06 51 12 33 10.4 10.4 100 2012-2224 WED JAN 09 18 10 18 50 19 17 19 38 05 41 06 08 06 48 02 12 06 55 12 37 10.4 10.1 96 2104-1806 THU JAN 10 18 11 18 51 19 18 20 34 05 41 06 08 06 48 02 17 06 59 12 41 10.4 9.1 87 2154-1254 FRI JAN 11 18 11 18 51 19 18 21 29 05 42 06 08 06 48 02 20 07 03 12 46 10.4 8.2 79 2242-0702 SAT JAN 12 18 12 18 52 19 19 22 24 05 42 06 09 06 49 02 25 07 07 12 50 10.4 7.3 70 2330-0046 SUN JAN 13 18 12 18 52 19 19 23 20 05 42 06 09 06 49 02 29 07 11 12 54 10.4 6.4 61 0019+0536 MON JAN 14 18 13 18 53 19 20 00 17 05 42 06 09 06 49 02 34 07 15 12 58 10.4 5.4 52 0109+1149 TUE JAN 15 18 14 18 54 19 20 01 18 05 42 06 09 06 49 02 38 07 19 13 02 10.4 4.4 42 0202+1732 WED JAN 16 18 14 18 54 19 21 02 22 05 42 06 09 06 49 02 43 07 23 13 06 10.3 3.3 32 0259+2222 THU JAN 17 18 15 18 55 19 22 03 29 05 42 06 09 06 49 02 48 07 27 13 10 10.3 2.2 21 0400+2553 FRI JAN 18 18 16 18 55 19 22 04 36 05 43 06 09 06 49 02 52 07 31 13 15 10.3 1.1 10 0505+2744 SAT JAN 19 18 16 18 56 19 23 05 39 05 43 06 09 06 49 02 57 07 35 13 19 10.3 0.1 0 0610+2742 SUN JAN 20 18 17 18 57 19 23 16 20 06 37 05 43 06 09 06 49 03 01 07 39 13 23 10.3 0.0 0 0714+2546 MON JAN 21 18 18 18 57 19 24 17 26 07 27 05 43 06 09 06 49 03 06 07 43 13 27 10.3 0.0 0 0814+2214 TUE JAN 22 18 18 18 58 19 24 18 30 05 43 06 09 06 49 03 10 07 47 13 31 10.3 0.0 0 0910+1729 WED JAN 23 18 19 18 58 19 25 19 30 05 43 06 09 06 49 03 15 07 51 13 34 10.3 0.1 0 1002+1157 THU JAN 24 18 19 18 59 19 25 20 26 05 43 06 09 06 48 03 19 07 54 13 38 10.3 1.0 9 1050+0602 FRI JAN 25 18 20 18 59 19 26 21 18 05 43 06 09 06 48 03 24 07 58 13 42 10.3 1.9 18 1135+0002 SAT JAN 26 18 21 19 00 19 26 22 09 05 43 06 09 06 48 03 28 08 02 13 46 10.3 2.7 26 1220-0548 SUN JAN 27 18 21 19 00 19 27 22 59 05 42 06 09 06 48 03 33 08 06 13 49 10.2 3.5 34 1304-1118 MON JAN 28 18 22 19 01 19 27 23 49 05 42 06 09 06 48 03 37 08 10 13 53 10.2 4.4 42 1349-1617 TUE JAN 29 18 22 19 02 19 28 00 40 05 42 06 08 06 48 03 41 08 14 13 57 10.2 5.2 50 1436-2036 WED JAN 30 18 23 19 02 19 28 01 32 05 42 06 08 06 47 03 45 08 18 14 01 10.2 6.1 59 1524-2405 THU JAN 31 18 24 19 03 19 29 02 26 05 42 06 08 06 47 03 50 08 22 14 05 10.2 6.9 68 1616-2634 ONE LINE REFERS TO EVENING DATE NEW MOON JAN 08 11:40 UT AND FOLLOWING MORNING. FIRST QUARTER JAN 15 19:47 UT All dates and times are zone HST FULL MOON JAN 22 13:38 UT in upper table (except sid time). LAST QUARTER JAN 30 05:05 UT