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 FRI JAN 01 18 05 18 45 19 12 17 48 07 39 05 39 06 06 06 46 01 09 06 25 12 32 11.3 0.0 0 0710+1923 SAT JAN 02 18 05 18 46 19 13 18 48 05 39 06 06 06 46 01 14 06 28 12 35 11.3 0.0 0 0810+1805 SUN JAN 03 18 06 18 47 19 14 19 47 05 39 06 06 06 47 01 19 06 32 12 39 11.3 1.0 8 0907+1546 MON JAN 04 18 07 18 47 19 14 20 45 05 40 06 07 06 47 01 22 06 36 12 44 11.3 2.0 17 1001+1239 TUE JAN 05 18 07 18 48 19 15 21 40 05 40 06 07 06 47 01 27 06 40 12 48 11.3 2.9 25 1051+0900 WED JAN 06 18 08 18 48 19 15 22 32 05 40 06 07 06 47 01 31 06 44 12 52 11.3 3.7 32 1139+0504 THU JAN 07 18 09 18 49 19 16 23 22 05 41 06 07 06 48 01 36 06 48 12 56 11.3 4.5 40 1226+0101 FRI JAN 08 18 09 18 49 19 16 00 11 05 41 06 08 06 48 01 40 06 52 13 01 11.3 5.4 47 1311-0259 SAT JAN 09 18 10 18 50 19 17 00 59 05 41 06 08 06 48 01 45 06 56 13 05 11.3 6.1 54 1356-0650 SUN JAN 10 18 11 18 51 19 18 01 48 05 41 06 08 06 48 01 50 07 00 13 09 11.3 6.9 61 1442-1024 MON JAN 11 18 11 18 51 19 18 02 37 05 42 06 08 06 48 01 54 07 04 13 13 11.3 7.8 68 1529-1333 TUE JAN 12 18 12 18 52 19 19 03 26 05 42 06 09 06 49 01 59 07 08 13 18 11.3 8.6 75 1617-1611 WED JAN 13 18 12 18 52 19 19 04 17 05 42 06 09 06 49 02 03 07 12 13 22 11.3 9.4 83 1707-1808 THU JAN 14 18 13 18 53 19 20 05 09 16 05 05 42 06 09 06 49 02 08 07 16 13 26 11.3 10.3 91 1758-1917 FRI JAN 15 18 14 18 54 19 20 06 00 16 54 05 42 06 09 06 49 02 13 07 20 13 30 11.3 11.1 98 1852-1931 SAT JAN 16 18 14 18 54 19 21 06 50 17 47 05 42 06 09 06 49 02 17 07 24 13 34 11.3 11.3 100 1946-1846 SUN JAN 17 18 15 18 55 19 22 07 39 18 41 05 42 06 09 06 49 02 22 07 28 13 38 11.2 11.2 100 2040-1701 MON JAN 18 18 16 18 55 19 22 19 37 05 43 06 09 06 49 02 26 07 32 13 42 11.2 10.5 93 2134-1420 TUE JAN 19 18 16 18 56 19 23 20 34 05 43 06 09 06 49 02 31 07 35 13 46 11.2 9.6 85 2227-1051 WED JAN 20 18 17 18 57 19 23 21 31 05 43 06 09 06 49 02 36 07 39 13 49 11.2 8.6 77 2320-0646 THU JAN 21 18 18 18 57 19 24 22 28 05 43 06 09 06 49 02 40 07 43 13 53 11.2 7.7 68 0012-0216 FRI JAN 22 18 18 18 58 19 24 23 25 05 43 06 09 06 49 02 44 07 47 13 57 11.2 6.7 60 0105+0221 SAT JAN 23 18 19 18 58 19 25 00 23 05 43 06 09 06 49 02 48 07 51 14 01 11.2 5.8 51 0158+0655 SUN JAN 24 18 19 18 59 19 25 01 23 05 43 06 09 06 49 02 53 07 55 14 05 11.2 4.8 42 0253+1108 MON JAN 25 18 20 18 59 19 26 02 23 05 43 06 09 06 48 02 57 07 59 14 09 11.2 3.8 33 0349+1443 TUE JAN 26 18 21 19 00 19 26 03 24 05 43 06 09 06 48 03 02 08 03 14 13 11.2 2.8 24 0448+1727 WED JAN 27 18 21 19 00 19 27 04 25 05 42 06 09 06 48 03 06 08 07 14 17 11.2 1.7 15 0547+1905 THU JAN 28 18 22 19 01 19 27 05 24 05 42 06 09 06 48 03 11 08 11 14 21 11.1 0.8 6 0647+1932 FRI JAN 29 18 22 19 02 19 28 16 32 06 20 05 42 06 08 06 48 03 16 08 15 14 24 11.1 0.0 0 0746+1845 SAT JAN 30 18 23 19 02 19 28 17 31 07 11 05 42 06 08 06 47 03 20 08 19 14 28 11.1 0.0 0 0844+1651 SUN JAN 31 18 24 19 03 19 29 18 29 07 58 05 42 06 08 06 47 03 25 08 23 14 32 11.1 0.0 0 0939+1403 ONE LINE REFERS TO EVENING DATE FULL MOON JAN 02 02:54 UT AND FOLLOWING MORNING. LAST QUARTER JAN 09 14:25 UT All dates and times are zone HST NEW MOON JAN 17 15:49 UT in upper table (except sid time). FIRST QUARTER JAN 24 19:18 UT FULL MOON JAN 31 16:11 UT