KECK OBSERVATORY CALENDAR FOR 2010 -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 2010 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 JUN 01 19 08 19 50 20 20 22 51 04 19 04 49 05 31 12 41 16 21 20 41 8.0 2.5 31 2107-1412 78 WED JUN 02 19 08 19 51 20 20 23 27 04 19 04 49 05 31 12 44 16 25 20 45 8.0 3.1 39 2152-0937 86 THU JUN 03 19 09 19 51 20 21 00 00 04 19 04 49 05 31 12 49 16 29 20 49 8.0 3.6 45 2236-0450 >90 FRI JUN 04 19 09 19 51 20 21 00 33 04 19 04 49 05 31 12 53 16 33 20 53 8.0 4.2 52 2319 0010 >90 SAT JUN 05 19 10 19 52 20 22 01 06 04 19 04 49 05 31 12 58 16 37 20 57 7.9 4.7 59 2403 0512 >90 SUN JUN 06 19 10 19 52 20 22 01 41 14 09 04 19 04 49 05 31 13 02 16 41 21 01 7.9 5.3 66 0048 1005 >90 MON JUN 07 19 10 19 53 20 23 02 19 15 00 04 19 04 49 05 31 13 07 16 45 21 05 7.9 5.9 74 0135 1438 >90 TUE JUN 08 19 11 19 53 20 23 03 01 15 55 04 19 04 49 05 31 13 11 16 49 21 08 7.9 6.6 83 0226 1838 >90 WED JUN 09 19 11 19 53 20 23 03 49 16 53 04 19 04 49 05 31 13 15 16 53 21 12 7.9 7.4 93 0320 2146 >90 THU JUN 10 19 11 19 54 20 24 04 43 17 53 04 19 04 49 05 31 13 20 16 57 21 16 7.9 7.9 100 0418 2346 >90 FRI JUN 11 19 12 19 54 20 24 05 43 18 55 04 19 04 49 05 31 13 24 17 01 21 20 7.9 7.9 100 0518 2421 >90 SAT JUN 12 19 12 19 55 20 25 06 47 19 54 04 19 04 49 05 31 13 29 17 05 21 24 7.9 7.9 100 0620 2322 >90 SUN JUN 13 19 12 19 55 20 25 20 50 04 19 04 49 05 31 13 33 17 08 21 28 7.9 7.5 94 0721 2050 >90 MON JUN 14 19 13 19 55 20 25 21 41 04 19 04 49 05 31 13 37 17 12 21 32 7.9 6.6 83 0819 1657 >90 TUE JUN 15 19 13 19 56 20 26 22 27 04 19 04 49 05 32 13 42 17 16 21 36 7.9 5.9 74 0915 1201 >90 WED JUN 16 19 13 19 56 20 26 23 09 04 19 04 49 05 32 13 46 17 20 21 40 7.9 5.2 65 1009 0624 >90 THU JUN 17 19 13 19 56 20 26 23 50 04 19 04 49 05 32 13 50 17 24 21 44 7.9 4.5 56 1101 0028 >90 FRI JUN 18 19 14 19 56 20 27 00 30 04 19 04 49 05 32 13 55 17 28 21 48 7.9 3.8 48 1153-0524 86 SAT JUN 19 19 14 19 57 20 27 01 10 04 19 04 50 05 32 13 59 17 32 21 52 7.9 3.1 40 1244-1105 77 SUN JUN 20 19 14 19 57 20 27 01 53 04 20 04 50 05 32 14 02 17 36 21 57 7.9 2.5 31 1336-1611 69 MON JUN 21 19 14 19 57 20 27 14 51 02 38 04 20 04 50 05 33 14 06 17 40 22 01 7.9 1.7 21 1431-2022 61 TUE JUN 22 19 15 19 57 20 28 15 50 03 27 04 20 04 50 05 33 14 11 17 44 22 05 7.9 0.9 11 1527-2327 55 WED JUN 23 19 15 19 58 20 28 16 48 04 19 04 20 04 50 05 33 14 15 17 48 22 09 7.9 0.0 0 1624-2516 49 THU JUN 24 19 15 19 58 20 28 17 44 05 13 04 21 04 51 05 33 14 19 17 52 22 14 7.9 0.0 0 1721-2542 46 FRI JUN 25 19 15 19 58 20 28 18 37 06 08 04 21 04 51 05 34 14 23 17 56 22 17 7.9 0.0 0 1818-2448 45 SAT JUN 26 19 15 19 58 20 28 19 25 04 21 04 51 05 34 14 27 18 00 22 21 7.9 0.0 0 1912-2241 46 SUN JUN 27 19 16 19 58 20 28 20 09 04 21 04 52 05 34 14 31 18 04 22 25 7.9 0.0 0 2003-1933 49 MON JUN 28 19 16 19 58 20 28 20 49 04 22 04 52 05 34 14 35 18 08 22 30 7.9 0.4 4 2052-1539 54 TUE JUN 29 19 16 19 58 20 29 21 25 04 22 04 52 05 35 14 40 18 12 22 34 7.9 0.9 11 2138-1112 59 WED JUN 30 19 16 19 58 20 29 21 59 04 22 04 53 05 35 14 44 18 15 22 38 7.9 1.5 19 2222-0624 66 ONE LINE REFERS TO EVENING DATE LAST QUARTER Jun 04 22:13 UT AND FOLLOWING MORNING. NEW MOON Jun 12 11:14 UT All dates and times are zone HST FIRST QUARTER Jun 19 04:30 UT in upper table (except sid time). FULL MOON Jun 26 11:29 UT