KECK OBSERVATORY CALENDAR FOR 2012 -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 2012 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 TUE MAY 01 18 56 19 36 20 03 14 24 03 09 04 34 05 02 05 42 10 23 14 21 18 56 8.5 1.4 16 1114-0110 50 WED MAY 02 18 56 19 36 20 04 15 24 03 53 04 34 05 01 05 41 10 28 14 25 19 00 8.5 0.7 8 1208-0631 43 THU MAY 03 18 56 19 36 20 04 16 26 04 40 04 33 05 01 05 41 10 32 14 29 19 03 8.5 0.0 0 1306-1139 38 FRI MAY 04 18 57 19 37 20 05 17 30 05 32 04 32 05 00 05 40 10 37 14 33 19 06 8.4 0.0 0 1406-1611 37 SAT MAY 05 18 57 19 37 20 05 18 36 06 28 04 31 04 59 05 40 10 41 14 37 19 08 8.4 0.0 0 1510-1941 40 SUN MAY 06 18 58 19 38 20 06 19 43 04 31 04 59 05 39 10 46 14 41 19 12 8.4 0.0 0 1615-2146 48 MON MAY 07 18 58 19 38 20 06 20 48 04 30 04 58 05 39 10 50 14 45 19 15 8.4 0.7 8 1720-2216 57 TUE MAY 08 18 58 19 39 20 07 21 48 04 29 04 58 05 38 10 55 14 49 19 18 8.4 1.7 20 1824-2114 67 WED MAY 09 18 59 19 39 20 08 22 42 04 29 04 57 05 38 11 00 14 52 19 22 8.3 2.6 30 1923-1850 77 THU MAY 10 18 59 19 40 20 08 23 31 04 28 04 57 05 37 11 04 14 56 19 25 8.3 3.4 40 2019-1526 87 FRI MAY 11 19 00 19 40 20 09 00 15 04 28 04 56 05 37 11 09 15 00 19 29 8.3 4.1 49 2112-1132 >90 SAT MAY 12 19 00 19 41 20 09 00 55 04 27 04 55 05 36 11 13 15 04 19 32 8.3 4.8 57 2201-0709 >90 SUN MAY 13 19 00 19 41 20 10 01 32 04 26 04 55 05 36 11 18 15 08 19 35 8.3 5.4 64 2248-0238 >90 MON MAY 14 19 01 19 42 20 10 02 08 14 11 04 26 04 54 05 35 11 22 15 12 19 39 8.3 6.0 72 2333 0153 >90 TUE MAY 15 19 01 19 42 20 11 02 44 15 00 04 25 04 54 05 35 11 27 15 16 19 42 8.2 6.6 79 0018 0613 >90 WED MAY 16 19 02 19 43 20 12 03 20 15 50 04 25 04 54 05 35 11 31 15 20 19 46 8.2 7.1 86 0103 1014 >90 THU MAY 17 19 02 19 43 20 12 03 58 16 39 04 24 04 53 05 34 11 35 15 24 19 49 8.2 7.8 94 0149 1349 >90 FRI MAY 18 19 03 19 44 20 13 04 38 17 29 04 24 04 53 05 34 11 40 15 28 19 53 8.2 8.2 100 0235 1648 >90 SAT MAY 19 19 03 19 44 20 13 05 21 18 20 04 23 04 52 05 34 11 44 15 32 19 56 8.2 8.2 100 0324 1905 >90 SUN MAY 20 19 03 19 45 20 14 06 06 19 10 04 23 04 52 05 33 11 49 15 36 20 00 8.1 8.1 100 0413 2033 >90 MON MAY 21 19 04 19 45 20 14 06 55 20 00 04 23 04 52 05 33 11 53 15 40 20 04 8.1 8.1 100 0504 2106 >90 TUE MAY 22 19 04 19 46 20 15 20 49 04 22 04 51 05 33 11 58 15 44 20 06 8.1 7.5 93 0554 2041 >90 WED MAY 23 19 05 19 46 20 15 21 36 04 22 04 51 05 33 12 02 15 48 20 10 8.1 6.8 83 0645 1919 >90 THU MAY 24 19 05 19 47 20 16 22 20 04 21 04 51 05 32 12 07 15 52 20 13 8.1 6.0 74 0736 1700 >90 FRI MAY 25 19 06 19 47 20 17 23 03 04 21 04 50 05 32 12 12 15 56 20 17 8.1 5.3 65 0826 1350 >90 SAT MAY 26 19 06 19 48 20 17 23 44 04 21 04 50 05 32 12 16 16 00 20 21 8.1 4.6 57 0916 0956 >90 SUN MAY 27 19 06 19 48 20 18 00 24 04 20 04 50 05 32 12 21 16 03 20 24 8.0 3.9 48 1006 0521 88 MON MAY 28 19 07 19 49 20 18 01 04 04 20 04 50 05 32 12 25 16 07 20 28 8.0 3.3 40 1056 0031 79 TUE MAY 29 19 07 19 49 20 19 01 45 04 20 04 49 05 31 12 30 16 11 20 32 8.0 2.6 32 1147-0436 69 WED MAY 30 19 08 19 50 20 19 14 09 02 29 04 20 04 49 05 31 12 34 16 15 20 36 8.0 1.9 23 1242-0940 60 THU MAY 31 19 08 19 50 20 20 15 10 03 17 04 19 04 49 05 31 12 39 16 19 20 39 8.0 1.0 12 1339-1421 52 ONE LINE REFERS TO EVENING DATE FULL MOON May 06 03:35 UT AND FOLLOWING MORNING. LAST QUARTER May 12 21:47 UT All dates and times are zone HST NEW MOON May 20 23:48 UT in upper table (except sid time). FIRST QUARTER May 28 20:16 UT