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 THU OCT 01 18 21 18 58 19 24 16 27 05 03 05 00 05 25 06 03 19 46 00 23 05 24 9.6 0.0 0 2308-0138 28 FRI OCT 02 18 20 18 57 19 23 17 01 05 55 05 00 05 26 06 03 19 49 00 27 05 28 9.6 0.0 0 2354 0359 18 SAT OCT 03 18 19 18 57 19 22 17 36 06 48 05 00 05 26 06 03 19 52 00 31 05 32 9.6 0.0 0 0041 0932 11 SUN OCT 04 18 18 18 56 19 21 18 14 05 00 05 26 06 04 19 55 00 35 05 36 9.6 0.0 0 0131 1445 14 MON OCT 05 18 17 18 55 19 20 18 55 05 01 05 26 06 04 19 58 00 39 05 41 9.7 0.0 0 0224 1919 25 TUE OCT 06 18 16 18 54 19 19 19 41 05 01 05 26 06 04 20 01 00 43 05 45 9.7 0.4 3 0321 2255 37 WED OCT 07 18 16 18 53 19 19 20 33 05 01 05 27 06 04 20 05 00 47 05 49 9.7 1.2 12 0421 2511 49 THU OCT 08 18 15 18 52 19 18 21 31 05 01 05 27 06 05 20 08 00 51 05 53 9.7 2.2 22 0523 2555 62 FRI OCT 09 18 14 18 52 19 17 22 33 05 02 05 27 06 05 20 11 00 55 05 57 9.8 3.3 33 0625 2458 75 SAT OCT 10 18 13 18 51 19 16 23 37 05 02 05 27 06 05 20 14 00 59 06 01 9.8 4.4 44 0724 2220 88 SUN OCT 11 18 12 18 50 19 15 00 41 05 02 05 28 06 05 20 17 01 03 06 05 9.8 5.4 55 0824 1833 >90 MON OCT 12 18 12 18 49 19 15 01 43 14 22 05 02 05 28 06 06 20 21 01 06 06 09 9.8 6.5 66 0919 1336 >90 TUE OCT 13 18 11 18 48 19 14 02 44 15 05 05 03 05 28 06 06 20 24 01 10 06 14 9.8 7.5 76 1012 0755 >90 WED OCT 14 18 10 18 48 19 13 03 42 15 45 05 03 05 29 06 06 20 27 01 14 06 18 9.8 8.5 86 1103 0151 >90 THU OCT 15 18 09 18 47 19 12 04 40 16 25 05 03 05 29 06 07 20 30 01 18 06 22 9.8 9.5 96 1153-0415 >90 FRI OCT 16 18 08 18 46 19 12 05 38 17 04 05 04 05 29 06 07 20 33 01 22 06 27 9.9 9.9 100 1243-1004 >90 SAT OCT 17 18 08 18 46 19 11 06 36 17 45 05 04 05 29 06 07 20 36 01 26 06 31 9.9 9.9 100 1335-1519 >90 SUN OCT 18 18 07 18 45 19 10 18 28 05 04 05 30 06 08 20 39 01 30 06 35 9.9 9.9 100 1427-1943 >90 MON OCT 19 18 06 18 44 19 10 19 14 05 04 05 30 06 08 20 43 01 34 06 39 9.9 9.8 99 1521-2303 >90 TUE OCT 20 18 06 18 43 19 09 20 03 05 05 05 30 06 08 20 46 01 38 06 44 9.9 9.0 90 1615-2510 >90 WED OCT 21 18 05 18 43 19 08 20 55 05 05 05 31 06 09 20 49 01 42 06 48 10.0 8.2 82 1710-2559 >90 THU OCT 22 18 04 18 42 19 08 21 48 05 05 05 31 06 09 20 53 01 46 06 52 10.0 7.3 73 1804-2533 >90 FRI OCT 23 18 04 18 42 19 07 22 41 05 06 05 31 06 09 20 56 01 50 06 57 10.0 6.4 64 1856-2356 >90 SAT OCT 24 18 03 18 41 19 07 23 33 05 06 05 32 06 10 21 00 01 54 07 01 10.0 5.6 55 1946-2117 >90 SUN OCT 25 18 02 18 40 19 06 00 25 05 06 05 32 06 10 21 03 01 58 07 05 10.0 4.7 46 2035-1738 88 MON OCT 26 18 02 18 40 19 06 01 15 05 07 05 32 06 10 21 07 02 02 07 10 10.0 3.9 38 2120-1328 77 TUE OCT 27 18 01 18 39 19 05 02 04 05 07 05 33 06 11 21 10 02 06 07 13 10.0 3.1 30 2205-0841 66 WED OCT 28 18 00 18 39 19 05 14 24 02 54 05 07 05 33 06 11 21 14 02 10 07 17 10.0 2.2 22 2250-0326 54 THU OCT 29 18 00 18 38 19 04 14 58 03 45 05 08 05 33 06 12 21 17 02 13 07 22 10.1 1.4 13 2335 0204 43 FRI OCT 30 17 59 18 38 19 04 15 33 04 37 05 08 05 34 06 12 21 21 02 17 07 26 10.1 0.5 5 0022 0738 30 SAT OCT 31 17 59 18 37 19 03 16 10 05 33 05 08 05 34 06 13 21 24 02 21 07 30 10.1 0.0 0 0112 1300 18 ONE LINE REFERS TO EVENING DATE FULL MOON Oct 04 06:09 UT AND FOLLOWING MORNING. LAST QUARTER Oct 11 08:56 UT All dates and times are zone HST NEW MOON Oct 18 05:32 UT in upper table (except sid time). FIRST QUARTER Oct 26 00:43 UT