YALO OBSERVATORY CALENDAR FOR 1999 (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 1999 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight MON FEB 01 19 51 20 39 21 11 21 08 04 43 05 15 06 03 05 15 08 04 12 48 7.5 0.0 0 1056+0841 TUE FEB 02 19 50 20 38 21 10 21 44 04 44 05 16 06 04 05 18 08 08 12 53 7.6 0.6 7 1145+0441 WED FEB 03 19 50 20 38 21 10 22 18 04 45 05 17 06 05 05 22 08 12 12 58 7.6 1.1 14 1232+0034 THU FEB 04 19 49 20 37 21 09 22 52 04 46 05 18 06 06 05 25 08 16 13 03 7.6 1.7 22 1318-0329 FRI FEB 05 19 48 20 36 21 08 23 25 04 47 05 19 06 07 05 28 08 20 13 08 7.7 2.3 29 1404-0720 SAT FEB 06 19 48 20 35 21 07 23 59 04 48 05 20 06 08 05 31 08 24 13 13 7.7 2.9 37 1449-1051 SUN FEB 07 19 47 20 34 21 06 00 36 04 50 05 21 06 08 05 34 08 28 13 19 7.7 3.5 45 1536-1356 MON FEB 08 19 46 20 33 21 05 01 15 04 51 05 22 06 09 05 37 08 32 13 24 7.8 4.2 53 1624-1627 TUE FEB 09 19 45 20 32 21 04 01 58 04 52 05 23 06 10 05 39 08 36 13 29 7.8 4.9 62 1714-1818 WED FEB 10 19 44 20 31 21 03 02 45 16 15 04 53 05 24 06 11 05 42 08 40 13 34 7.8 5.7 72 1806-1920 THU FEB 11 19 44 20 30 21 02 03 37 17 06 04 54 05 25 06 12 05 45 08 44 13 39 7.9 6.6 83 1859-1926 FRI FEB 12 19 43 20 29 21 00 04 33 17 56 04 55 05 26 06 13 05 47 08 48 13 44 7.9 7.6 95 1953-1834 SAT FEB 13 19 42 20 28 20 59 05 32 18 43 04 56 05 27 06 14 05 50 08 52 13 49 7.9 7.9 100 2048-1641 SUN FEB 14 19 41 20 27 20 58 06 34 19 28 04 57 05 28 06 14 05 53 08 56 13 53 8.0 8.0 100 2142-1350 MON FEB 15 19 40 20 26 20 57 07 37 20 11 04 58 05 29 06 15 05 56 09 00 13 58 8.0 8.0 100 2237-1010 TUE FEB 16 19 39 20 25 20 56 20 51 04 59 05 30 06 16 05 59 09 04 14 03 8.1 8.1 100 2331-0553 WED FEB 17 19 38 20 24 20 55 21 31 05 00 05 31 06 17 06 02 09 07 14 08 8.1 7.5 92 0025-0113 THU FEB 18 19 37 20 23 20 54 22 11 05 01 05 32 06 18 06 05 09 11 14 13 8.1 6.8 84 0118+0331 FRI FEB 19 19 36 20 22 20 52 22 52 05 02 05 33 06 18 06 07 09 15 14 18 8.2 6.2 75 0213+0805 SAT FEB 20 19 35 20 21 20 51 23 36 05 03 05 33 06 19 06 10 09 19 14 23 8.2 5.4 66 0308+1211 SUN FEB 21 19 34 20 20 20 50 00 22 05 04 05 34 06 20 06 13 09 23 14 28 8.2 4.7 57 0405+1533 MON FEB 22 19 33 20 19 20 49 01 12 05 05 05 35 06 21 06 16 09 27 14 33 8.3 3.9 46 0503+1758 TUE FEB 23 19 32 20 18 20 48 02 06 05 06 05 36 06 22 06 19 09 31 14 38 8.3 3.0 36 0602+1918 WED FEB 24 19 31 20 17 20 46 03 03 05 07 05 37 06 22 06 21 09 35 14 43 8.4 2.1 24 0700+1927 THU FEB 25 19 30 20 15 20 45 16 51 04 02 05 08 05 38 06 23 06 23 09 39 14 48 8.4 1.1 13 0758+1827 FRI FEB 26 19 29 20 14 20 44 17 39 05 02 05 09 05 39 06 24 06 26 09 43 14 53 8.4 0.1 1 0853+1626 SAT FEB 27 19 28 20 13 20 43 18 24 06 01 05 10 05 39 06 25 06 29 09 47 14 58 8.4 0.0 0 0947+1333 SUN FEB 28 19 27 20 12 20 41 19 04 06 58 05 11 05 40 06 25 06 31 09 51 15 03 8.5 0.0 0 1038+1003 ONE LINE REFERS TO EVENING DATE LAST QUARTER FEB 08 12:01 UT AND FOLLOWING MORNING. NEW MOON FEB 16 06:41 UT All dates and times are zone CST FIRST QUARTER FEB 23 02:46 UT