YALO OBSERVATORY CALENDAR FOR 2001 (computed for altitude 2210.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON DATE(CST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) RA DEC 2001 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight THU FEB 01 19 51 20 39 21 11 01 33 04 43 05 15 06 03 05 17 08 06 12 50 7.5 3.2 42 0401+1658 FRI FEB 02 19 50 20 38 21 10 02 21 04 44 05 16 06 04 05 20 08 10 12 55 7.6 2.4 31 0458+2006 SAT FEB 03 19 50 20 38 21 10 16 24 03 17 04 45 05 17 06 05 05 24 08 14 13 00 7.6 1.5 19 0600+2204 SUN FEB 04 19 49 20 37 21 09 17 29 04 21 04 46 05 18 06 06 05 27 08 18 13 05 7.6 0.4 5 0704+2236 MON FEB 05 19 48 20 36 21 08 18 30 05 29 04 47 05 19 06 07 05 30 08 22 13 10 7.7 0.0 0 0809+2130 TUE FEB 06 19 48 20 35 21 07 19 25 06 40 04 48 05 20 06 08 05 33 08 26 13 15 7.7 0.0 0 0913+1849 WED FEB 07 19 47 20 34 21 06 20 14 07 51 04 50 05 21 06 08 05 36 08 30 13 21 7.7 0.0 0 1014+1450 THU FEB 08 19 46 20 33 21 05 20 58 04 51 05 22 06 09 05 39 08 34 13 26 7.8 0.0 0 1113+0956 FRI FEB 09 19 45 20 32 21 04 21 37 04 52 05 23 06 10 05 41 08 38 13 31 7.8 0.5 7 1208+0433 SAT FEB 10 19 44 20 31 21 03 22 14 04 53 05 24 06 11 05 44 08 42 13 36 7.8 1.2 15 1301-0055 SUN FEB 11 19 44 20 30 21 02 22 50 04 54 05 25 06 12 05 47 08 46 13 41 7.9 1.8 22 1352-0610 MON FEB 12 19 43 20 29 21 00 23 26 04 55 05 26 06 13 05 49 08 50 13 46 7.9 2.4 30 1443-1057 TUE FEB 13 19 42 20 28 20 59 00 03 04 56 05 27 06 14 05 52 08 54 13 51 7.9 3.1 38 1533-1504 WED FEB 14 19 41 20 27 20 58 00 42 04 57 05 28 06 14 05 55 08 58 13 55 8.0 3.7 46 1623-1823 THU FEB 15 19 40 20 26 20 57 01 25 04 58 05 29 06 15 05 58 09 02 14 00 8.0 4.5 55 1715-2048 FRI FEB 16 19 39 20 25 20 56 02 10 04 59 05 30 06 16 06 01 09 06 14 05 8.1 5.2 65 1806-2213 SAT FEB 17 19 38 20 24 20 55 02 59 16 48 05 00 05 31 06 17 06 04 09 09 14 10 8.1 6.1 75 1858-2237 SUN FEB 18 19 37 20 23 20 54 03 50 17 35 05 01 05 32 06 18 06 07 09 13 14 15 8.1 6.9 85 1949-2200 MON FEB 19 19 36 20 22 20 52 04 43 18 19 05 02 05 33 06 18 06 09 09 17 14 20 8.2 7.8 96 2039-2025 TUE FEB 20 19 35 20 21 20 51 05 37 18 58 05 03 05 33 06 19 06 12 09 21 14 25 8.2 8.2 100 2128-1756 WED FEB 21 19 34 20 20 20 50 06 32 19 34 05 04 05 34 06 20 06 15 09 25 14 30 8.2 8.2 100 2216-1442 THU FEB 22 19 33 20 19 20 49 07 26 20 08 05 05 05 35 06 21 06 18 09 29 14 35 8.3 8.3 100 2302-1050 FRI FEB 23 19 32 20 18 20 48 20 40 05 06 05 36 06 22 06 21 09 33 14 40 8.3 8.3 100 2348-0630 SAT FEB 24 19 31 20 17 20 46 21 11 05 07 05 37 06 22 06 23 09 37 14 45 8.4 7.9 95 0033-0152 SUN FEB 25 19 30 20 15 20 45 21 42 05 08 05 38 06 23 06 26 09 41 14 50 8.4 7.4 88 0119+0254 MON FEB 26 19 29 20 14 20 44 22 15 05 09 05 39 06 24 06 28 09 45 14 55 8.4 6.9 81 0206+0738 TUE FEB 27 19 28 20 13 20 43 22 50 05 10 05 39 06 25 06 31 09 49 15 00 8.4 6.3 74 0255+1207 WED FEB 28 19 27 20 12 20 41 23 29 05 11 05 40 06 25 06 33 09 53 15 05 8.5 5.7 67 0346+1608 ONE LINE REFERS TO EVENING DATE FIRST QUARTER FEB 01 14:06 UT AND FOLLOWING MORNING. FULL MOON FEB 08 07:12 UT All dates and times are zone CST LAST QUARTER FEB 15 03:26 UT in upper table (except sid time). NEW MOON FEB 23 08:25 UT