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 WED SEP 01 18 36 19 20 19 47 01 30 05 39 06 07 06 51 17 47 22 00 03 40 9.9 5.7 57 0440+1732 THU SEP 02 18 36 19 20 19 48 02 32 05 38 06 06 06 49 17 51 22 04 03 43 9.8 6.7 68 0539+1929 FRI SEP 03 18 37 19 21 19 48 03 32 05 37 06 04 06 48 17 55 22 08 03 46 9.8 7.7 78 0639+2014 SAT SEP 04 18 37 19 21 19 49 04 27 05 36 06 03 06 47 18 00 22 12 03 49 9.8 8.6 88 0739+1942 SUN SEP 05 18 38 19 22 19 49 05 17 05 34 06 02 06 46 18 04 22 16 03 51 9.7 9.5 97 0837+1758 MON SEP 06 18 38 19 22 19 50 06 02 16 39 05 33 06 01 06 45 18 09 22 20 03 54 9.7 9.7 100 0934+1512 TUE SEP 07 18 39 19 23 19 50 06 43 17 40 05 32 06 00 06 44 18 13 22 24 03 57 9.7 9.7 100 1028+1138 WED SEP 08 18 39 19 23 19 51 07 20 18 40 05 31 05 59 06 42 18 18 22 28 04 00 9.7 9.7 100 1120+0733 THU SEP 09 18 40 19 24 19 51 07 56 19 38 05 30 05 57 06 41 18 22 22 32 04 03 9.6 9.6 100 1209+0310 FRI SEP 10 18 40 19 24 19 52 20 35 05 28 05 56 06 40 18 27 22 36 04 05 9.6 8.9 92 1257-0114 SAT SEP 11 18 41 19 25 19 53 21 30 05 27 05 55 06 39 18 32 22 40 04 08 9.6 7.9 83 1344-0531 SUN SEP 12 18 41 19 25 19 53 22 25 05 26 05 54 06 37 18 36 22 44 04 10 9.6 7.0 73 1431-0929 MON SEP 13 18 42 19 26 19 54 23 18 05 25 05 52 06 36 18 41 22 48 04 13 9.5 6.1 64 1518-1300 TUE SEP 14 18 43 19 26 19 54 00 11 05 23 05 51 06 35 18 45 22 51 04 15 9.5 5.2 54 1606-1557 WED SEP 15 18 43 19 27 19 55 01 04 05 22 05 50 06 34 18 50 22 55 04 18 9.5 4.3 45 1655-1813 THU SEP 16 18 44 19 27 19 55 01 55 05 21 05 49 06 32 18 54 22 59 04 21 9.4 3.4 36 1744-1941 FRI SEP 17 18 44 19 28 19 56 02 45 05 20 05 47 06 31 18 59 23 03 04 24 9.4 2.6 27 1835-2018 SAT SEP 18 18 45 19 28 19 56 03 33 05 18 05 46 06 30 19 03 23 07 04 26 9.4 1.8 18 1927-1959 SUN SEP 19 18 45 19 29 19 57 04 18 05 17 05 45 06 29 19 08 23 11 04 29 9.3 1.0 10 2019-1843 MON SEP 20 18 46 19 30 19 58 05 01 05 16 05 44 06 27 19 12 23 15 04 32 9.3 0.2 2 2111-1629 TUE SEP 21 18 46 19 30 19 58 05 42 05 14 05 42 06 26 19 16 23 19 04 34 9.3 0.0 0 2204-1322 WED SEP 22 18 47 19 31 19 59 16 58 06 21 05 13 05 41 06 25 19 21 23 23 04 37 9.2 0.0 0 2256-0928 THU SEP 23 18 47 19 31 19 59 18 00 07 00 05 12 05 40 06 24 19 25 23 27 04 40 9.2 0.0 0 2349-0459 FRI SEP 24 18 48 19 32 20 00 19 03 07 39 05 10 05 39 06 22 19 30 23 31 04 42 9.2 0.0 0 0042-0007 SAT SEP 25 18 49 19 32 20 01 20 07 05 09 05 37 06 21 19 35 23 35 04 45 9.1 0.1 1 0136+0449 SUN SEP 26 18 49 19 33 20 01 21 12 05 08 05 36 06 20 19 39 23 39 04 48 9.1 1.2 12 0231+0932 MON SEP 27 18 50 19 34 20 02 22 18 05 06 05 35 06 19 19 44 23 43 04 50 9.1 2.3 24 0328+1343 TUE SEP 28 18 50 19 34 20 03 23 23 05 05 05 33 06 17 19 49 23 47 04 52 9.0 3.3 36 0426+1703 WED SEP 29 18 51 19 35 20 03 00 27 05 04 05 32 06 16 19 53 23 51 04 55 9.0 4.4 48 0526+1919 THU SEP 30 18 51 19 36 20 04 01 28 05 02 05 31 06 15 19 58 23 55 04 57 9.0 5.4 60 0626+2021 ONE LINE REFERS TO EVENING DATE LAST QUARTER SEP 02 22:21 UT AND FOLLOWING MORNING. NEW MOON SEP 09 22:04 UT All dates and times are zone CST FIRST QUARTER SEP 17 20:09 UT in upper table (except sid time). FULL MOON SEP 25 10:52 UT