KECK OBSERVATORY CALENDAR FOR 2005 -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 2005 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight THU SEP 01 18 48 19 26 19 52 05 06 17 57 04 52 05 18 05 56 18 16 22 25 03 18 9.0 9.0 100 0958+1627 FRI SEP 02 18 47 19 25 19 52 05 56 18 31 04 52 05 18 05 57 18 20 22 29 03 21 9.0 9.0 100 1043+1124 SAT SEP 03 18 46 19 24 19 51 06 45 19 03 04 52 05 19 05 57 18 23 22 33 03 25 9.0 9.0 100 1126+0554 SUN SEP 04 18 45 19 23 19 50 07 34 19 34 04 53 05 19 05 57 18 26 22 37 03 30 9.0 9.0 100 1209+0008 MON SEP 05 18 44 19 22 19 49 20 06 04 53 05 19 05 57 18 29 22 41 03 34 9.1 8.8 96 1252-0542 TUE SEP 06 18 43 19 21 19 48 20 39 04 53 05 19 05 57 18 32 22 44 03 38 9.1 8.2 90 1337-1125 WED SEP 07 18 42 19 21 19 47 21 14 04 54 05 20 05 58 18 35 22 48 03 43 9.1 7.7 84 1424-1646 THU SEP 08 18 42 19 20 19 46 21 54 04 54 05 20 05 58 18 38 22 52 03 47 9.1 7.0 76 1515-2130 FRI SEP 09 18 41 19 19 19 45 22 40 04 54 05 20 05 58 18 41 22 56 03 51 9.2 6.2 68 1611-2516 SAT SEP 10 18 40 19 18 19 44 23 32 04 54 05 20 05 58 18 44 23 00 03 55 9.2 5.4 58 1710-2744 SUN SEP 11 18 39 19 17 19 43 00 31 04 55 05 21 05 59 18 46 23 04 04 00 9.2 4.4 47 1813-2833 MON SEP 12 18 38 19 16 19 42 01 36 04 55 05 21 05 59 18 49 23 08 04 04 9.2 3.3 35 1917-2731 TUE SEP 13 18 37 19 15 19 41 02 43 04 55 05 21 05 59 18 52 23 12 04 08 9.2 2.2 23 2021-2436 WED SEP 14 18 36 19 14 19 40 16 07 03 51 04 56 05 21 05 59 18 55 23 16 04 13 9.3 1.1 11 2122-2002 THU SEP 15 18 35 19 13 19 39 16 55 04 56 04 56 05 22 05 59 18 58 23 20 04 17 9.3 0.0 0 2219-1411 FRI SEP 16 18 34 19 12 19 38 17 38 05 59 04 56 05 22 06 00 19 01 23 24 04 21 9.3 0.0 0 2314-0731 SAT SEP 17 18 33 19 11 19 37 18 18 07 00 04 56 05 22 06 00 19 04 23 28 04 25 9.3 0.0 0 0006-0029 SUN SEP 18 18 32 19 10 19 36 18 57 08 00 04 57 05 22 06 00 19 07 23 32 04 30 9.3 0.0 0 0058+0626 MON SEP 19 18 32 19 09 19 35 19 36 04 57 05 23 06 00 19 10 23 36 04 34 9.4 0.0 0 0149+1254 TUE SEP 20 18 31 19 08 19 34 20 15 04 57 05 23 06 00 19 13 23 40 04 37 9.4 0.7 7 0242+1832 WED SEP 21 18 30 19 07 19 33 20 58 04 57 05 23 06 01 19 16 23 44 04 41 9.4 1.4 15 0336+2304 THU SEP 22 18 29 19 06 19 32 21 44 04 58 05 23 06 01 19 19 23 48 04 46 9.4 2.2 23 0431+2619 FRI SEP 23 18 28 19 05 19 31 22 33 04 58 05 23 06 01 19 22 23 51 04 50 9.5 3.0 32 0527+2809 SAT SEP 24 18 27 19 05 19 30 23 25 04 58 05 24 06 01 19 25 23 55 04 54 9.5 3.9 41 0622+2833 SUN SEP 25 18 26 19 04 19 29 00 20 04 58 05 24 06 01 19 28 23 59 04 58 9.5 4.8 51 0716+2734 MON SEP 26 18 25 19 03 19 28 01 14 04 59 05 24 06 02 19 31 00 03 05 03 9.5 5.8 60 0809+2520 TUE SEP 27 18 24 19 02 19 27 02 08 04 59 05 24 06 02 19 33 00 07 05 07 9.5 6.7 70 0858+2201 WED SEP 28 18 23 19 01 19 26 03 00 04 59 05 25 06 02 19 36 00 11 05 11 9.6 7.6 79 0945+1750 THU SEP 29 18 22 19 00 19 26 03 51 16 32 04 59 05 25 06 02 19 40 00 15 05 15 9.6 8.4 88 1030+1255 FRI SEP 30 18 22 18 59 19 25 04 40 17 05 04 59 05 25 06 03 19 43 00 19 05 19 9.6 9.3 96 1114+0730 ONE LINE REFERS TO EVENING DATE NEW MOON SEP 03 18:50 UT AND FOLLOWING MORNING. FIRST QUARTER SEP 11 11:39 UT All dates and times are zone HST FULL MOON SEP 18 02:05 UT in upper table (except sid time). LAST QUARTER SEP 25 06:44 UT