KECK OBSERVATORY CALENDAR FOR 2005 -NAUTICAL (computed for altitude 4145.0 m) NAUTICAL(12 deg) TWILIGHT/DAWN MOON DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (12 deg) RA DEC 2005 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 12 12 h h % midnight THU SEP 01 18 48 19 26 19 52 05 06 17 57 04 52 05 18 05 56 17 50 22 25 03 44 9.9 9.7 97 0958+1627 FRI SEP 02 18 47 19 25 19 52 05 56 18 31 04 52 05 18 05 57 17 53 22 29 03 48 9.9 9.9 100 1043+1124 SAT SEP 03 18 46 19 24 19 51 06 45 19 03 04 52 05 19 05 57 17 56 22 33 03 52 9.9 9.9 100 1126+0554 SUN SEP 04 18 45 19 23 19 50 07 34 19 34 04 53 05 19 05 57 17 59 22 37 03 56 9.9 9.7 98 1209+0008 MON SEP 05 18 44 19 22 19 49 20 06 04 53 05 19 05 57 18 02 22 41 04 00 9.9 9.2 92 1252-0542 TUE SEP 06 18 43 19 21 19 48 20 39 04 53 05 19 05 57 18 05 22 44 04 04 10.0 8.7 86 1337-1125 WED SEP 07 18 42 19 21 19 47 21 14 04 54 05 20 05 58 18 09 22 48 04 09 10.0 8.1 81 1424-1646 THU SEP 08 18 42 19 20 19 46 21 54 04 54 05 20 05 58 18 12 22 52 04 13 10.0 7.4 74 1515-2130 FRI SEP 09 18 41 19 19 19 45 22 40 04 54 05 20 05 58 18 15 22 56 04 17 10.0 6.7 66 1611-2516 SAT SEP 10 18 40 19 18 19 44 23 32 04 54 05 20 05 58 18 17 23 00 04 21 10.0 5.8 57 1710-2744 SUN SEP 11 18 39 19 17 19 43 00 31 04 55 05 21 05 59 18 20 23 04 04 26 10.1 4.8 48 1813-2833 MON SEP 12 18 38 19 16 19 42 01 36 04 55 05 21 05 59 18 23 23 08 04 30 10.1 3.7 37 1917-2731 TUE SEP 13 18 37 19 15 19 41 02 43 04 55 05 21 05 59 18 26 23 12 04 34 10.1 2.6 26 2021-2436 WED SEP 14 18 36 19 14 19 40 16 07 03 51 04 56 05 21 05 59 18 29 23 16 04 38 10.1 1.5 14 2122-2002 THU SEP 15 18 35 19 13 19 39 16 55 04 56 04 56 05 22 05 59 18 32 23 20 04 43 10.1 0.4 4 2219-1411 FRI SEP 16 18 34 19 12 19 38 17 38 05 59 04 56 05 22 06 00 18 35 23 24 04 47 10.2 0.0 0 2314-0731 SAT SEP 17 18 33 19 11 19 37 18 18 07 00 04 56 05 22 06 00 18 38 23 28 04 51 10.2 0.0 0 0006-0029 SUN SEP 18 18 32 19 10 19 36 18 57 08 00 04 57 05 22 06 00 18 41 23 32 04 55 10.2 0.0 0 0058+0626 MON SEP 19 18 32 19 09 19 35 19 36 04 57 05 23 06 00 18 44 23 36 05 00 10.2 0.5 4 0149+1254 TUE SEP 20 18 31 19 08 19 34 20 15 04 57 05 23 06 00 18 47 23 40 05 04 10.2 1.1 10 0242+1832 WED SEP 21 18 30 19 07 19 33 20 58 04 57 05 23 06 01 18 50 23 44 05 07 10.3 1.9 18 0336+2304 THU SEP 22 18 29 19 06 19 32 21 44 04 58 05 23 06 01 18 53 23 48 05 11 10.3 2.6 25 0431+2619 FRI SEP 23 18 28 19 05 19 31 22 33 04 58 05 23 06 01 18 56 23 51 05 15 10.3 3.5 33 0527+2809 SAT SEP 24 18 27 19 05 19 30 23 25 04 58 05 24 06 01 19 00 23 55 05 20 10.3 4.3 42 0622+2833 SUN SEP 25 18 26 19 04 19 29 00 20 04 58 05 24 06 01 19 03 23 59 05 24 10.3 5.3 50 0716+2734 MON SEP 26 18 25 19 03 19 28 01 14 04 59 05 24 06 02 19 05 00 03 05 28 10.4 6.2 59 0809+2520 TUE SEP 27 18 24 19 02 19 27 02 08 04 59 05 24 06 02 19 08 00 07 05 32 10.4 7.1 68 0858+2201 WED SEP 28 18 23 19 01 19 26 03 00 04 59 05 25 06 02 19 11 00 11 05 37 10.4 8.0 76 0945+1750 THU SEP 29 18 22 19 00 19 26 03 51 16 32 04 59 05 25 06 02 19 14 00 15 05 41 10.4 8.8 84 1030+1255 FRI SEP 30 18 22 18 59 19 25 04 40 17 05 04 59 05 25 06 03 19 17 00 19 05 45 10.4 9.7 92 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