KECK OBSERVATORY CALENDAR FOR 2008 -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 2008 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight FRI FEB 01 18 24 19 03 19 29 03 20 05 42 06 08 06 47 03 54 08 26 14 09 10.2 7.8 76 1709-2751 SAT FEB 02 18 25 19 04 19 30 04 13 05 41 06 08 06 46 03 59 08 30 14 12 10.2 8.7 85 1804-2750 SUN FEB 03 18 25 19 04 19 30 05 03 05 41 06 07 06 46 04 03 08 34 14 16 10.2 9.6 93 1900-2625 MON FEB 04 18 26 19 05 19 31 05 50 16 29 05 41 06 07 06 46 04 08 08 38 14 20 10.2 10.2 100 1954-2337 TUE FEB 05 18 26 19 05 19 31 06 33 17 27 05 41 06 07 06 45 04 12 08 42 14 24 10.2 10.2 100 2047-1936 WED FEB 06 18 27 19 06 19 32 07 14 18 25 05 40 06 06 06 45 04 17 08 46 14 27 10.1 10.1 100 2139-1432 THU FEB 07 18 27 19 06 19 32 07 52 19 21 05 40 06 06 06 45 04 21 08 50 14 31 10.1 10.1 100 2229-0842 FRI FEB 08 18 28 19 06 19 32 20 18 05 40 06 06 06 44 04 25 08 54 14 35 10.1 9.4 92 2318-0222 SAT FEB 09 18 28 19 07 19 33 21 14 05 39 06 05 06 44 04 30 08 58 14 38 10.1 8.4 83 0007+0408 SUN FEB 10 18 29 19 07 19 33 22 12 05 39 06 05 06 43 04 34 09 02 14 41 10.1 7.4 73 0057+1030 MON FEB 11 18 29 19 08 19 34 23 12 05 39 06 04 06 43 04 39 09 05 14 45 10.1 6.4 63 0150+1624 TUE FEB 12 18 30 19 08 19 34 00 15 05 38 06 04 06 42 04 43 09 09 14 48 10.1 5.4 53 0246+2126 WED FEB 13 18 30 19 09 19 35 01 20 05 38 06 03 06 42 04 48 09 13 14 52 10.0 4.3 42 0345+2515 THU FEB 14 18 31 19 09 19 35 02 26 05 37 06 03 06 41 04 52 09 17 14 55 10.0 3.2 31 0447+2730 FRI FEB 15 18 31 19 10 19 35 03 29 05 37 06 02 06 41 04 56 09 21 14 59 10.0 2.1 21 0551+2758 SAT FEB 16 18 32 19 10 19 36 04 27 05 36 06 02 06 40 05 00 09 25 15 02 10.0 1.2 11 0654+2638 SUN FEB 17 18 32 19 10 19 36 05 19 05 36 06 01 06 40 05 04 09 29 15 06 10.0 0.3 2 0754+2339 MON FEB 18 18 33 19 11 19 36 16 15 06 04 05 35 06 01 06 39 05 08 09 33 15 09 10.0 0.0 0 0850+1922 TUE FEB 19 18 33 19 11 19 37 17 15 06 44 05 35 06 00 06 38 05 13 09 37 15 13 10.0 0.0 0 0942+1408 WED FEB 20 18 33 19 11 19 37 18 12 07 20 05 34 06 00 06 38 05 17 09 41 15 16 9.9 0.0 0 1031+0821 THU FEB 21 18 34 19 12 19 37 19 06 07 55 05 33 05 59 06 37 05 21 09 45 15 19 9.9 0.0 0 1118+0220 FRI FEB 22 18 34 19 12 19 38 19 58 05 33 05 59 06 36 05 26 09 49 15 23 9.9 0.3 3 1203-0338 SAT FEB 23 18 35 19 13 19 38 20 49 05 32 05 58 06 36 05 30 09 53 15 26 9.9 1.2 11 1248-0921 SUN FEB 24 18 35 19 13 19 39 21 39 05 32 05 57 06 35 05 35 09 57 15 30 9.9 2.0 20 1333-1436 MON FEB 25 18 35 19 13 19 39 22 30 05 31 05 57 06 34 05 39 10 01 15 33 9.9 2.9 28 1419-1912 TUE FEB 26 18 36 19 14 19 39 23 23 05 30 05 56 06 34 05 43 10 05 15 36 9.9 3.7 37 1507-2301 WED FEB 27 18 36 19 14 19 40 00 16 05 30 05 55 06 33 05 48 10 09 15 39 9.8 4.6 46 1558-2551 THU FEB 28 18 37 19 14 19 40 01 09 05 29 05 55 06 32 05 52 10 12 15 42 9.8 5.5 55 1650-2733 FRI FEB 29 18 37 19 15 19 40 02 02 05 28 05 54 06 32 05 56 10 16 15 45 9.8 6.4 64 1744-2800 ONE LINE REFERS TO EVENING DATE NEW MOON FEB 07 03:46 UT AND FOLLOWING MORNING. FIRST QUARTER FEB 14 03:35 UT All dates and times are zone HST FULL MOON FEB 21 03:34 UT LAST QUARTER FEB 29 UT