KECK OBSERVATORY CALENDAR FOR 2010 -NAUTICAL (computed for altitude 4160.0 m) NAUTICAL(12 deg) TWILIGHT/DAWN MOON(midnight) DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (12 deg) Zenith 2010 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ RA DEC Dist 12 18 18 12 12 12 h h % h m d m deg MON FEB 01 18 24 19 03 19 29 21 04 05 42 06 08 06 47 03 30 08 28 14 37 11.1 2.0 18 1147-0354 54 TUE FEB 02 18 25 19 04 19 30 22 04 05 41 06 08 06 46 03 35 08 32 14 41 11.1 3.0 27 1239-0959 68 WED FEB 03 18 25 19 04 19 30 23 03 05 41 06 07 06 46 03 39 08 36 14 44 11.0 4.0 36 1332-1516 81 THU FEB 04 18 26 19 05 19 31 00 01 05 41 06 07 06 46 03 44 08 40 14 48 11.0 4.9 44 1426-1942 >90 FRI FEB 05 18 26 19 05 19 31 00 58 05 41 06 07 06 45 03 48 08 44 14 52 11.0 5.9 53 1519-2259 >90 SAT FEB 06 18 27 19 06 19 32 01 54 05 40 06 06 06 45 03 53 08 48 14 55 11.0 6.8 61 1614-2501 >90 SUN FEB 07 18 27 19 06 19 32 02 48 05 40 06 06 06 45 03 57 08 52 14 59 11.0 7.7 69 1708-2549 >90 MON FEB 08 18 28 19 07 19 32 03 38 14 13 05 40 06 06 06 44 04 02 08 56 15 03 11.0 8.5 77 1801-2522 >90 TUE FEB 09 18 28 19 07 19 33 04 25 15 06 05 39 06 05 06 44 04 06 09 00 15 06 11.0 9.3 84 1853-2347 >90 WED FEB 10 18 29 19 07 19 33 05 07 15 59 05 39 06 05 06 43 04 10 09 04 15 10 11.0 10.0 91 1942-2111 >90 THU FEB 11 18 29 19 08 19 34 05 46 16 50 05 39 06 04 06 43 04 15 09 07 15 12 10.9 10.6 97 2030-1745 >90 FRI FEB 12 18 30 19 08 19 34 06 22 17 41 05 38 06 04 06 42 04 19 09 11 15 16 10.9 10.9 100 2115-1339 >90 SAT FEB 13 18 30 19 09 19 35 06 56 18 30 05 38 06 04 06 42 04 24 09 15 15 20 10.9 10.9 100 2159-0903 >90 SUN FEB 14 18 31 19 09 19 35 19 18 05 37 06 03 06 41 04 27 09 19 15 23 10.9 10.8 98 2241-0408 >90 MON FEB 15 18 31 19 10 19 35 20 06 05 37 06 03 06 41 04 32 09 23 15 27 10.9 9.9 91 2324 0058 >90 TUE FEB 16 18 32 19 10 19 36 20 55 05 36 06 02 06 40 04 36 09 27 15 30 10.9 9.1 83 0007 0605 >90 WED FEB 17 18 32 19 10 19 36 21 45 05 36 06 01 06 40 04 40 09 31 15 33 10.9 8.3 76 0052 1102 >90 THU FEB 18 18 33 19 11 19 36 22 38 05 35 06 01 06 39 04 45 09 35 15 37 10.8 7.4 68 0139 1539 >90 FRI FEB 19 18 33 19 11 19 37 23 33 05 35 06 00 06 38 04 49 09 39 15 40 10.8 6.5 59 0229 1940 >90 SAT FEB 20 18 33 19 11 19 37 00 31 05 34 06 00 06 38 04 53 09 43 15 44 10.8 5.5 50 0324 2246 87 SUN FEB 21 18 34 19 12 19 38 01 30 05 34 05 59 06 37 04 58 09 47 15 47 10.8 4.5 41 0421 2452 74 MON FEB 22 18 34 19 12 19 38 02 30 05 33 05 59 06 36 05 02 09 51 15 51 10.8 3.5 32 0521 2529 62 TUE FEB 23 18 35 19 13 19 38 03 28 05 32 05 58 06 36 05 07 09 55 15 54 10.7 2.5 23 0624 2428 49 WED FEB 24 18 35 19 13 19 39 14 21 04 23 05 32 05 57 06 35 05 11 09 59 15 57 10.7 1.6 14 0727 2144 35 THU FEB 25 18 35 19 13 19 39 15 28 05 13 05 31 05 57 06 34 05 15 10 03 16 01 10.7 0.7 6 0829 1729 22 FRI FEB 26 18 36 19 14 19 39 16 35 06 00 05 30 05 56 06 34 05 20 10 07 16 04 10.7 0.0 0 0928 1200 12 SAT FEB 27 18 36 19 14 19 40 17 40 06 44 05 30 05 55 06 33 05 24 10 11 16 07 10.7 0.0 0 1025 0543 15 SUN FEB 28 18 37 19 14 19 40 18 43 05 29 05 55 06 32 05 28 10 14 16 10 10.7 0.0 0 1121-0052 26 ONE LINE REFERS TO EVENING DATE LAST QUARTER Feb 05 23:48 UT AND FOLLOWING MORNING. NEW MOON Feb 14 02:52 UT All dates and times are zone HST FIRST QUARTER Feb 22 00:44 UT in upper table (except sid time). FULL MOON Feb 28 16:36 UT