KECK OBSERVATORY CALENDAR FOR 2005 -ASTRONOMICAL (computed for altitude 4145.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) RA DEC 2005 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight THU DEC 01 17 52 18 32 18 59 07 48 18 08 05 23 05 50 06 30 23 22 04 24 09 47 10.4 10.4 100 1723-2755 FRI DEC 02 17 52 18 33 18 59 19 09 05 23 05 50 06 30 23 26 04 27 09 51 10.4 10.2 98 1827-2819 SAT DEC 03 17 53 18 33 19 00 20 14 05 24 05 51 06 31 23 31 04 31 09 56 10.4 9.2 88 1932-2647 SUN DEC 04 17 53 18 33 19 00 21 21 05 24 05 51 06 32 23 35 04 35 10 00 10.4 8.0 77 2034-2330 MON DEC 05 17 53 18 33 19 00 22 26 05 25 05 52 06 32 23 38 04 39 10 05 10.4 7.0 67 2132-1847 TUE DEC 06 17 53 18 33 19 00 23 28 05 25 05 52 06 33 23 42 04 43 10 09 10.4 5.9 57 2227-1303 WED DEC 07 17 53 18 34 19 01 00 27 05 26 05 53 06 33 23 47 04 47 10 14 10.4 5.0 47 2318-0642 THU DEC 08 17 54 18 34 19 01 01 24 05 27 05 54 06 34 23 51 04 51 10 19 10.4 4.0 38 0007-0006 FRI DEC 09 17 54 18 34 19 01 02 21 05 27 05 54 06 35 23 55 04 55 10 23 10.4 3.1 29 0056+0624 SAT DEC 10 17 54 18 35 19 02 03 18 05 28 05 55 06 35 00 00 04 59 10 28 10.4 2.2 20 0145+1233 SUN DEC 11 17 55 18 35 19 02 04 16 05 28 05 55 06 36 00 04 05 03 10 32 10.4 1.2 11 0236+1802 MON DEC 12 17 55 18 35 19 02 05 15 05 29 05 56 06 36 00 08 05 07 10 37 10.5 0.2 2 0329+2235 TUE DEC 13 17 55 18 36 19 03 16 04 06 16 05 29 05 56 06 37 00 13 05 11 10 41 10.4 0.0 0 0424+2556 WED DEC 14 17 56 18 36 19 03 16 53 07 14 05 30 05 57 06 38 00 17 05 15 10 46 10.5 0.0 0 0521+2753 THU DEC 15 17 56 18 37 19 04 17 46 05 30 05 58 06 38 00 22 05 19 10 50 10.4 0.0 0 0618+2820 FRI DEC 16 17 56 18 37 19 04 18 42 05 31 05 58 06 39 00 26 05 23 10 55 10.4 0.0 0 0714+2720 SAT DEC 17 17 57 18 37 19 05 19 38 05 31 05 59 06 39 00 31 05 27 10 58 10.4 0.5 5 0808+2502 SUN DEC 18 17 57 18 38 19 05 20 33 05 32 05 59 06 40 00 35 05 31 11 03 10.4 1.5 14 0858+2138 MON DEC 19 17 58 18 38 19 05 21 26 05 33 06 00 06 40 00 39 05 34 11 08 10.5 2.3 22 0945+1724 TUE DEC 20 17 58 18 39 19 06 22 16 05 33 06 00 06 41 00 44 05 38 11 12 10.4 3.2 30 1030+1231 WED DEC 21 17 59 18 39 19 06 23 05 05 34 06 01 06 41 00 48 05 42 11 17 10.5 4.0 38 1113+0712 THU DEC 22 17 59 18 40 19 07 23 53 05 34 06 01 06 42 00 52 05 46 11 21 10.4 4.8 45 1155+0136 FRI DEC 23 18 00 18 40 19 07 00 42 05 35 06 02 06 42 00 56 05 50 11 26 10.5 5.6 53 1237-0407 SAT DEC 24 18 00 18 41 19 08 01 32 05 35 06 02 06 43 01 01 05 54 11 30 10.5 6.4 61 1321-0950 SUN DEC 25 18 01 18 41 19 08 02 25 05 35 06 03 06 43 01 05 05 58 11 34 10.5 7.3 69 1408-1519 MON DEC 26 18 01 18 42 19 09 03 22 05 36 06 03 06 44 01 10 06 02 11 39 10.5 8.2 78 1459-2018 TUE DEC 27 18 02 18 42 19 10 04 23 05 36 06 04 06 44 01 15 06 06 11 43 10.4 9.2 88 1555-2425 WED DEC 28 18 02 18 43 19 10 05 28 05 37 06 04 06 44 01 19 06 10 11 48 10.5 10.3 98 1656-2715 THU DEC 29 18 03 18 43 19 11 06 33 16 50 05 37 06 04 06 45 01 24 06 14 11 52 10.4 10.4 100 1801-2822 FRI DEC 30 18 04 18 44 19 11 07 36 17 55 05 38 06 05 06 45 01 28 06 18 11 57 10.5 10.5 100 1907-2732 SAT DEC 31 18 04 18 45 19 12 19 04 05 38 06 05 06 46 01 33 06 22 12 01 10.4 10.4 100 2012-2444 ONE LINE REFERS TO EVENING DATE NEW MOON DEC 01 15:03 UT AND FOLLOWING MORNING. FIRST QUARTER DEC 08 09:38 UT All dates and times are zone HST FULL MOON DEC 15 16:18 UT in upper table (except sid time). LAST QUARTER DEC 23 19:39 UT NEW MOON DEC 31 03:14 UT