KECK OBSERVATORY CALENDAR FOR 2000 -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 2000 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 12 12 h h % midnight SAT JAN 01 18 05 18 45 19 12 03 27 05 39 06 06 06 46 01 08 06 24 12 31 11.3 8.7 76 1536-1420 SUN JAN 02 18 05 18 46 19 13 04 17 05 39 06 06 06 46 01 13 06 28 12 35 11.3 9.5 83 1624-1710 MON JAN 03 18 06 18 47 19 14 05 07 16 06 05 39 06 06 06 47 01 18 06 31 12 38 11.3 10.3 91 1713-1916 TUE JAN 04 18 07 18 47 19 14 05 57 16 50 05 40 06 07 06 47 01 22 06 35 12 43 11.3 11.2 98 1803-2034 WED JAN 05 18 07 18 48 19 15 06 46 17 37 05 40 06 07 06 47 01 26 06 39 12 47 11.3 11.3 100 1854-2057 THU JAN 06 18 08 18 48 19 15 07 33 18 26 05 40 06 07 06 47 01 30 06 43 12 51 11.3 11.3 100 1945-2023 FRI JAN 07 18 09 18 49 19 16 19 17 05 41 06 07 06 48 01 35 06 47 12 55 11.3 10.8 95 2036-1854 SAT JAN 08 18 09 18 49 19 16 20 09 05 41 06 08 06 48 01 39 06 51 13 00 11.3 10.0 88 2126-1632 SUN JAN 09 18 10 18 50 19 17 21 01 05 41 06 08 06 48 01 44 06 55 13 04 11.3 9.1 80 2215-1323 MON JAN 10 18 11 18 51 19 18 21 53 05 41 06 08 06 48 01 49 06 59 13 08 11.3 8.2 73 2304-0936 TUE JAN 11 18 11 18 51 19 18 22 45 05 42 06 08 06 48 01 53 07 03 13 12 11.3 7.4 65 2353-0519 WED JAN 12 18 12 18 52 19 19 23 38 05 42 06 09 06 49 01 58 07 07 13 17 11.3 6.5 57 0042-0043 THU JAN 13 18 12 18 52 19 19 00 33 05 42 06 09 06 49 02 02 07 11 13 21 11.3 5.6 49 0132+0401 FRI JAN 14 18 13 18 53 19 20 01 30 05 42 06 09 06 49 02 07 07 15 13 25 11.3 4.7 41 0223+0842 SAT JAN 15 18 14 18 54 19 20 02 30 05 42 06 09 06 49 02 12 07 19 13 29 11.3 3.7 32 0318+1302 SUN JAN 16 18 14 18 54 19 21 03 33 05 42 06 09 06 49 02 16 07 23 13 33 11.3 2.6 23 0416+1644 MON JAN 17 18 15 18 55 19 22 04 37 05 42 06 09 06 49 02 21 07 27 13 37 11.2 1.5 13 0517+1925 TUE JAN 18 18 16 18 55 19 22 05 42 05 43 06 09 06 49 02 25 07 31 13 41 11.2 0.5 4 0621+2048 WED JAN 19 18 16 18 56 19 23 16 47 06 44 05 43 06 09 06 49 02 30 07 35 13 45 11.2 0.0 0 0725+2043 THU JAN 20 18 17 18 57 19 23 17 51 07 43 05 43 06 09 06 49 02 35 07 38 13 48 11.2 0.0 0 0829+1908 FRI JAN 21 18 18 18 57 19 24 18 56 05 43 06 09 06 49 02 39 07 42 13 52 11.2 0.0 0 0930+1618 SAT JAN 22 18 18 18 58 19 24 19 59 05 43 06 09 06 49 02 44 07 46 13 56 11.2 1.0 9 1027+1231 SUN JAN 23 18 19 18 58 19 25 20 59 05 43 06 09 06 49 02 47 07 50 14 00 11.2 2.0 18 1121+0808 MON JAN 24 18 19 18 59 19 25 21 55 05 43 06 09 06 48 02 52 07 54 14 04 11.2 2.9 26 1212+0329 TUE JAN 25 18 20 18 59 19 26 22 49 05 43 06 09 06 48 02 56 07 58 14 08 11.2 3.8 34 1301-0109 WED JAN 26 18 21 19 00 19 26 23 41 05 43 06 09 06 48 03 01 08 02 14 12 11.2 4.7 42 1349-0537 THU JAN 27 18 21 19 00 19 27 00 32 05 42 06 09 06 48 03 05 08 06 14 16 11.2 5.5 49 1436-0944 FRI JAN 28 18 22 19 01 19 27 01 22 05 42 06 09 06 48 03 10 08 10 14 20 11.1 6.4 57 1523-1322 SAT JAN 29 18 22 19 02 19 28 02 12 05 42 06 08 06 48 03 15 08 14 14 23 11.1 7.2 64 1610-1624 SUN JAN 30 18 23 19 02 19 28 03 02 05 42 06 08 06 47 03 19 08 18 14 27 11.1 8.0 72 1659-1844 MON JAN 31 18 24 19 03 19 29 03 51 05 42 06 08 06 47 03 24 08 22 14 31 11.1 8.8 79 1749-2016 ONE LINE REFERS TO EVENING DATE NEW MOON JAN 06 18:17 UT AND FOLLOWING MORNING. FIRST QUARTER JAN 14 13:37 UT All dates and times are zone HST FULL MOON JAN 21 04:43 UT in upper table (except sid time). LAST QUARTER JAN 28 07:59 UT