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 WED OCT 01 18 20 18 57 19 23 19 52 05 00 05 25 06 03 19 46 00 24 05 25 9.6 9.1 94 1448-2134 THU OCT 02 18 19 18 56 19 22 20 35 05 00 05 26 06 03 19 49 00 28 05 29 9.6 8.4 87 1539-2439 FRI OCT 03 18 18 18 56 19 21 21 20 05 00 05 26 06 04 19 52 00 32 05 33 9.6 7.7 79 1631-2637 SAT OCT 04 18 17 18 55 19 20 22 09 05 01 05 26 06 04 19 55 00 36 05 38 9.7 6.9 70 1724-2721 SUN OCT 05 18 16 18 54 19 19 23 01 05 01 05 26 06 04 19 58 00 40 05 42 9.7 6.0 61 1817-2650 MON OCT 06 18 16 18 53 19 19 23 54 05 01 05 27 06 04 20 02 00 44 05 46 9.7 5.1 52 1910-2505 TUE OCT 07 18 15 18 52 19 18 00 48 05 01 05 27 06 05 20 05 00 48 05 50 9.7 4.2 43 2001-2211 WED OCT 08 18 14 18 51 19 17 01 42 05 02 05 27 06 05 20 08 00 52 05 55 9.8 3.3 34 2051-1815 THU OCT 09 18 13 18 51 19 16 02 36 05 02 05 27 06 05 20 11 00 56 05 58 9.8 2.4 24 2139-1325 FRI OCT 10 18 12 18 50 19 15 03 29 05 02 05 28 06 05 20 14 01 00 06 02 9.8 1.5 15 2227-0753 SAT OCT 11 18 11 18 49 19 15 04 24 05 02 05 28 06 06 20 18 01 04 06 06 9.8 0.6 6 2315-0150 SUN OCT 12 18 11 18 48 19 14 16 27 05 21 05 03 05 28 06 06 20 21 01 07 06 11 9.8 0.0 0 0004+0428 MON OCT 13 18 10 18 48 19 13 17 05 06 20 05 03 05 29 06 06 20 24 01 11 06 15 9.8 0.0 0 0055+1043 TUE OCT 14 18 09 18 47 19 12 17 46 07 23 05 03 05 29 06 07 20 27 01 15 06 19 9.8 0.0 0 0150+1632 WED OCT 15 18 08 18 46 19 12 18 32 05 03 05 29 06 07 20 30 01 19 06 23 9.8 0.0 0 0248+2129 THU OCT 16 18 08 18 45 19 11 19 24 05 04 05 29 06 07 20 33 01 23 06 28 9.9 0.2 2 0350+2506 FRI OCT 17 18 07 18 45 19 10 20 22 05 04 05 30 06 08 20 36 01 27 06 32 9.9 1.2 12 0455+2701 SAT OCT 18 18 06 18 44 19 10 21 25 05 04 05 30 06 08 20 40 01 31 06 36 9.9 2.2 22 0600+2703 SUN OCT 19 18 06 18 43 19 09 22 30 05 05 05 30 06 08 20 43 01 35 06 41 9.9 3.4 33 0704+2516 MON OCT 20 18 05 18 43 19 08 23 35 05 05 05 31 06 09 20 46 01 39 06 45 10.0 4.5 44 0803+2155 TUE OCT 21 18 04 18 42 19 08 00 37 05 05 05 31 06 09 20 50 01 43 06 49 10.0 5.5 55 0859+1725 WED OCT 22 18 03 18 42 19 07 01 36 05 06 05 31 06 09 20 53 01 47 06 54 10.0 6.5 64 0950+1206 THU OCT 23 18 03 18 41 19 07 02 31 05 06 05 32 06 10 20 57 01 51 06 58 10.0 7.4 74 1039+0620 FRI OCT 24 18 02 18 40 19 06 03 24 05 06 05 32 06 10 21 00 01 55 07 02 10.0 8.3 83 1125+0024 SAT OCT 25 18 02 18 40 19 06 04 16 16 01 05 06 05 32 06 10 21 04 01 59 07 06 10.0 9.2 91 1211-0526 SUN OCT 26 18 01 18 39 19 05 05 08 16 36 05 07 05 33 06 11 21 07 02 03 07 10 10.0 10.0 100 1257-1059 MON OCT 27 18 00 18 39 19 05 06 01 17 11 05 07 05 33 06 11 21 11 02 07 07 14 10.0 10.0 100 1345-1601 TUE OCT 28 18 00 18 38 19 04 06 54 17 50 05 07 05 33 06 12 21 14 02 11 07 18 10.0 10.0 100 1433-2019 WED OCT 29 17 59 18 38 19 04 07 48 18 31 05 08 05 34 06 12 21 18 02 14 07 23 10.1 10.1 100 1523-2341 THU OCT 30 17 59 18 37 19 03 19 15 05 08 05 34 06 13 21 21 02 18 07 27 10.1 9.9 98 1615-2558 FRI OCT 31 17 58 18 37 19 03 20 03 05 09 05 35 06 13 21 25 02 22 07 32 10.1 9.1 90 1708-2703 ONE LINE REFERS TO EVENING DATE FIRST QUARTER OCT 07 09:08 UT AND FOLLOWING MORNING. FULL MOON OCT 14 20:05 UT All dates and times are zone HST LAST QUARTER OCT 21 11:58 UT in upper table (except sid time). NEW MOON OCT 28 23:15 UT