KECK OBSERVATORY CALENDAR FOR 1999 -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 1999 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 12 12 h h % midnight TUE JUN 01 19 08 19 50 20 20 21 03 04 19 04 49 05 31 12 09 16 20 21 10 9.0 1.2 13 1912-2000 WED JUN 02 19 08 19 50 20 20 21 51 04 19 04 49 05 31 12 13 16 24 21 14 9.0 2.0 22 2004-1858 THU JUN 03 19 09 19 51 20 21 22 37 04 19 04 49 05 31 12 18 16 28 21 18 9.0 2.8 30 2055-1702 FRI JUN 04 19 09 19 51 20 21 23 22 04 19 04 49 05 31 12 22 16 32 21 21 9.0 3.5 39 2146-1415 SAT JUN 05 19 09 19 52 20 22 00 05 04 19 04 49 05 31 12 27 16 36 21 25 8.9 4.2 47 2237-1043 SUN JUN 06 19 10 19 52 20 22 00 48 04 19 04 49 05 31 12 31 16 40 21 29 8.9 4.9 55 2328-0635 MON JUN 07 19 10 19 53 20 23 01 30 04 19 04 49 05 31 12 36 16 44 21 33 8.9 5.6 62 0020-0159 TUE JUN 08 19 11 19 53 20 23 02 13 04 19 04 49 05 31 12 40 16 47 21 37 8.9 6.3 70 0113+0251 WED JUN 09 19 11 19 53 20 23 02 59 04 19 04 49 05 31 12 44 16 51 21 41 8.9 7.1 79 0208+0741 THU JUN 10 19 11 19 54 20 24 03 47 16 13 04 19 04 49 05 31 12 49 16 55 21 45 8.9 7.9 88 0306+1210 FRI JUN 11 19 12 19 54 20 24 04 40 17 18 04 19 04 49 05 31 12 53 16 59 21 49 8.9 8.8 98 0406+1556 SAT JUN 12 19 12 19 55 20 25 05 36 18 24 04 19 04 49 05 31 12 58 17 03 21 53 8.9 8.9 100 0508+1839 SUN JUN 13 19 12 19 55 20 25 06 37 19 29 04 19 04 49 05 31 13 01 17 07 21 57 8.9 8.9 100 0612+2002 MON JUN 14 19 13 19 55 20 25 07 39 20 32 04 19 04 49 05 31 13 05 17 11 22 01 8.9 8.3 93 0715+2000 TUE JUN 15 19 13 19 56 20 26 21 30 04 19 04 49 05 32 13 10 17 15 22 05 8.9 7.3 82 0817+1837 WED JUN 16 19 13 19 56 20 26 22 23 04 19 04 49 05 32 13 14 17 19 22 09 8.9 6.4 72 0915+1609 THU JUN 17 19 13 19 56 20 26 23 11 04 19 04 49 05 32 13 18 17 23 22 13 8.9 5.6 63 1009+1250 FRI JUN 18 19 14 19 56 20 27 23 54 04 19 04 49 05 32 13 22 17 27 22 17 8.9 4.9 55 1101+0900 SAT JUN 19 19 14 19 57 20 27 00 33 04 19 04 50 05 32 13 27 17 31 22 22 8.9 4.3 48 1149+0451 SUN JUN 20 19 14 19 57 20 27 01 11 04 20 04 50 05 32 13 31 17 35 22 26 8.9 3.7 41 1236+0037 MON JUN 21 19 14 19 57 20 27 01 48 04 20 04 50 05 33 13 35 17 39 22 30 8.9 3.0 34 1322-0333 TUE JUN 22 19 15 19 57 20 28 02 24 04 20 04 50 05 33 13 39 17 43 22 33 8.9 2.4 27 1407-0732 WED JUN 23 19 15 19 58 20 28 03 02 04 20 04 50 05 33 13 44 17 47 22 37 8.9 1.8 20 1453-1111 THU JUN 24 19 15 19 58 20 28 03 41 04 21 04 51 05 33 13 48 17 51 22 42 8.9 1.2 13 1540-1423 FRI JUN 25 19 15 19 58 20 28 16 30 04 23 04 21 04 51 05 34 13 52 17 54 22 46 8.9 0.5 5 1627-1659 SAT JUN 26 19 15 19 58 20 28 17 20 05 07 04 21 04 51 05 34 13 56 17 58 22 50 8.9 0.0 0 1717-1854 SUN JUN 27 19 16 19 58 20 28 18 10 05 53 04 21 04 52 05 34 14 00 18 02 22 55 8.9 0.0 0 1808-1959 MON JUN 28 19 16 19 58 20 28 19 00 06 43 04 22 04 52 05 34 14 04 18 06 22 59 8.9 0.0 0 1859-2010 TUE JUN 29 19 16 19 58 20 28 19 49 07 34 04 22 04 52 05 35 14 08 18 10 23 03 8.9 0.0 0 1951-1925 WED JUN 30 19 16 19 58 20 29 20 36 04 22 04 53 05 35 14 12 18 14 23 08 8.9 0.6 7 2043-1742 ONE LINE REFERS TO EVENING DATE LAST QUARTER JUN 07 04:24 UT AND FOLLOWING MORNING. NEW MOON JUN 13 19:05 UT All dates and times are zone HST FIRST QUARTER JUN 20 18:16 UT in upper table (except sid time). FULL MOON JUN 28 21:42 UT