KECK OBSERVATORY CALENDAR FOR 2006 -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 2006 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight MON MAY 01 18 55 19 35 20 03 23 21 04 35 05 03 05 42 10 21 14 19 18 55 8.5 5.2 61 0650+2805 TUE MAY 02 18 56 19 35 20 03 00 12 04 34 05 02 05 42 10 25 14 23 18 58 8.5 4.4 51 0745+2609 WED MAY 03 18 56 19 36 20 04 00 55 04 34 05 01 05 41 10 30 14 27 19 01 8.5 3.6 42 0837+2301 THU MAY 04 18 56 19 36 20 04 01 34 04 33 05 01 05 41 10 34 14 31 19 04 8.5 3.0 35 0926+1858 FRI MAY 05 18 57 19 37 20 05 02 09 04 32 05 00 05 40 10 39 14 35 19 07 8.4 2.4 28 1011+1413 SAT MAY 06 18 57 19 37 20 05 02 41 04 31 04 59 05 40 10 43 14 39 19 10 8.4 1.8 21 1055+0859 SUN MAY 07 18 58 19 38 20 06 03 11 04 31 04 59 05 39 10 48 14 42 19 14 8.4 1.3 15 1137+0326 MON MAY 08 18 58 19 38 20 06 03 42 04 30 04 58 05 39 10 52 14 46 19 17 8.4 0.8 9 1219-0217 TUE MAY 09 18 58 19 39 20 07 04 13 04 29 04 58 05 38 10 57 14 50 19 20 8.4 0.3 3 1302-0800 WED MAY 10 18 59 19 39 20 08 16 44 04 47 04 29 04 57 05 38 11 02 14 54 19 24 8.3 0.0 0 1347-1331 THU MAY 11 18 59 19 40 20 08 17 37 05 25 04 28 04 57 05 37 11 06 14 58 19 27 8.3 0.0 0 1435-1836 FRI MAY 12 19 00 19 40 20 09 18 32 06 08 04 28 04 56 05 37 11 11 15 02 19 31 8.3 0.0 0 1526-2257 SAT MAY 13 19 00 19 41 20 09 19 31 06 57 04 27 04 55 05 36 11 15 15 06 19 34 8.3 0.0 0 1622-2614 SUN MAY 14 19 00 19 41 20 10 20 32 07 52 04 26 04 55 05 36 11 19 15 10 19 37 8.3 0.4 4 1721-2809 MON MAY 15 19 01 19 42 20 10 21 33 04 26 04 54 05 35 11 23 15 14 19 41 8.3 1.4 16 1823-2825 TUE MAY 16 19 01 19 42 20 11 22 31 04 25 04 54 05 35 11 28 15 18 19 44 8.2 2.3 28 1924-2658 WED MAY 17 19 02 19 43 20 11 23 24 04 25 04 54 05 35 11 32 15 22 19 48 8.2 3.2 39 2024-2351 THU MAY 18 19 02 19 43 20 12 00 12 04 24 04 53 05 34 11 37 15 26 19 51 8.2 4.0 48 2121-1920 FRI MAY 19 19 03 19 44 20 13 00 55 04 24 04 53 05 34 11 42 15 30 19 55 8.2 4.7 57 2215-1343 SAT MAY 20 19 03 19 44 20 13 01 34 04 23 04 52 05 34 11 46 15 34 19 57 8.2 5.3 65 2306-0722 SUN MAY 21 19 03 19 45 20 14 02 12 04 23 04 52 05 33 11 51 15 38 20 01 8.1 6.0 73 2357-0037 MON MAY 22 19 04 19 45 20 14 02 49 04 22 04 52 05 33 11 55 15 42 20 04 8.1 6.6 80 0047+0609 TUE MAY 23 19 04 19 46 20 15 03 28 04 22 04 51 05 33 12 00 15 46 20 08 8.1 7.2 88 0139+1237 WED MAY 24 19 05 19 46 20 15 04 10 16 59 04 22 04 51 05 33 12 04 15 50 20 12 8.1 7.9 97 0233+1824 THU MAY 25 19 05 19 47 20 16 04 56 18 02 04 21 04 51 05 32 12 09 15 53 20 15 8.1 8.1 100 0329+2308 FRI MAY 26 19 05 19 47 20 17 05 47 19 06 04 21 04 50 05 32 12 14 15 57 20 19 8.1 8.1 100 0428+2629 SAT MAY 27 19 06 19 48 20 17 06 42 20 09 04 21 04 50 05 32 12 18 16 01 20 23 8.1 8.1 100 0528+2814 SUN MAY 28 19 06 19 48 20 18 07 40 21 08 04 20 04 50 05 32 12 23 16 05 20 26 8.0 7.2 89 0628+2819 MON MAY 29 19 07 19 49 20 18 22 02 04 20 04 50 05 32 12 27 16 09 20 30 8.0 6.3 78 0725+2651 TUE MAY 30 19 07 19 49 20 19 22 49 04 20 04 49 05 31 12 32 16 13 20 34 8.0 5.5 68 0819+2404 WED MAY 31 19 08 19 50 20 19 23 30 04 20 04 49 05 31 12 36 16 17 20 38 8.0 4.8 60 0909+2015 ONE LINE REFERS TO EVENING DATE FIRST QUARTER MAY 05 05:16 UT AND FOLLOWING MORNING. FULL MOON MAY 13 06:55 UT All dates and times are zone HST LAST QUARTER MAY 20 09:23 UT in upper table (except sid time). NEW MOON MAY 27 05:29 UT