LICK OBSERVATORY CALENDAR FOR 1998 -ASTRONOMICAL (computed for altitude 1283.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON DATE(PST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) RA DEC 1998 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight WED APR 01 18 35 19 26 19 57 00 03 04 23 04 55 05 45 08 32 12 35 16 59 8.4 4.3 51 0533+1812 THU APR 02 18 36 19 27 19 59 00 59 04 22 04 53 05 44 08 38 12 39 17 02 8.4 3.4 40 0630+1836 FRI APR 03 18 37 19 28 20 00 01 49 04 20 04 52 05 42 08 43 12 43 17 04 8.3 2.5 30 0724+1758 SAT APR 04 18 38 19 29 20 01 02 34 04 18 04 50 05 41 08 47 12 47 17 06 8.3 1.7 20 0817+1626 SUN APR 05 18 39 19 30 20 02 03 13 04 16 04 49 05 40 08 52 12 51 17 08 8.2 1.1 12 0907+1410 MON APR 06 18 40 19 31 20 03 03 49 04 15 04 47 05 38 08 57 12 55 17 11 8.2 0.4 5 0956+1119 TUE APR 07 18 41 19 32 20 04 04 21 04 13 04 45 05 37 09 02 12 59 17 13 8.1 0.0 0 1043+0801 WED APR 08 18 41 19 33 20 05 04 52 04 11 04 44 05 35 09 07 13 03 17 15 8.1 0.0 0 1128+0425 THU APR 09 18 42 19 34 20 06 16 43 05 23 04 10 04 42 05 34 09 12 13 07 17 18 8.1 0.0 0 1213+0041 FRI APR 10 18 43 19 35 20 07 17 38 05 53 04 08 04 41 05 32 09 17 13 11 17 19 8.0 0.0 0 1258-0304 SAT APR 11 18 44 19 36 20 09 18 32 06 24 04 06 04 39 05 31 09 23 13 15 17 21 8.0 0.0 0 1344-0644 SUN APR 12 18 45 19 37 20 10 19 27 06 56 04 05 04 38 05 29 09 28 13 19 17 24 7.9 0.0 0 1430-1009 MON APR 13 18 46 19 38 20 11 20 22 07 32 04 03 04 36 05 28 09 33 13 23 17 26 7.9 0.2 2 1517-1310 TUE APR 14 18 47 19 39 20 12 21 17 04 01 04 35 05 27 09 38 13 27 17 28 7.8 1.1 13 1606-1540 WED APR 15 18 48 19 40 20 13 22 12 04 00 04 33 05 25 09 43 13 30 17 31 7.8 2.0 25 1656-1730 THU APR 16 18 49 19 41 20 15 23 06 03 58 04 31 05 24 09 49 13 34 17 33 7.7 2.9 36 1748-1831 FRI APR 17 18 50 19 42 20 16 23 57 03 56 04 30 05 22 09 54 13 38 17 35 7.7 3.7 48 1842-1838 SAT APR 18 18 51 19 43 20 17 00 47 03 55 04 28 05 21 09 59 13 42 17 38 7.6 4.5 58 1936-1748 SUN APR 19 18 51 19 44 20 18 01 33 03 53 04 27 05 20 10 04 13 46 17 40 7.6 5.3 69 2031-1558 MON APR 20 18 52 19 45 20 19 02 17 03 51 04 25 05 18 10 09 13 50 17 42 7.5 6.0 79 2127-1312 TUE APR 21 18 53 19 46 20 21 02 58 03 50 04 24 05 17 10 15 13 54 17 45 7.5 6.6 88 2223-0936 WED APR 22 18 54 19 47 20 22 03 38 03 48 04 22 05 16 10 19 13 58 17 47 7.4 7.3 97 2319-0518 THU APR 23 18 55 19 48 20 23 04 17 03 46 04 21 05 14 10 24 14 02 17 49 7.4 7.4 100 0015-0035 FRI APR 24 18 56 19 50 20 24 04 57 17 07 03 45 04 20 05 13 10 29 14 06 17 52 7.4 7.4 100 0113+0413 SAT APR 25 18 57 19 51 20 26 05 39 18 19 03 43 04 18 05 12 10 35 14 10 17 54 7.3 7.3 100 0211+0849 SUN APR 26 18 58 19 52 20 27 06 23 19 31 03 42 04 17 05 11 10 40 14 14 17 56 7.2 7.2 100 0310+1248 MON APR 27 18 59 19 53 20 28 07 11 20 41 03 40 04 15 05 09 10 45 14 18 17 58 7.2 7.0 96 0410+1555 TUE APR 28 19 00 19 54 20 29 21 47 03 38 04 14 05 08 10 50 14 22 18 00 7.1 5.9 81 0510+1755 WED APR 29 19 01 19 55 20 31 22 49 03 37 04 12 05 07 10 56 14 26 18 03 7.1 4.8 67 0609+1846 THU APR 30 19 02 19 56 20 32 23 43 03 35 04 11 05 06 11 01 14 30 18 05 7.1 3.9 54 0707+1829 ONE LINE REFERS TO EVENING DATE FIRST QUARTER APR 03 20:20 UT AND FOLLOWING MORNING. FULL MOON APR 11 22:27 UT All dates and times are zone PST LAST QUARTER APR 19 19:57 UT in upper table (except sid time). NEW MOON APR 26 11:43 UT