LICK OBSERVATORY CALENDAR FOR 2004 -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 2004 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight THU APR 01 18 36 19 27 19 59 04 49 04 22 04 53 05 44 08 36 12 37 17 00 8.4 0.0 0 1026+1459 FRI APR 02 18 37 19 28 20 00 05 16 04 20 04 52 05 42 08 41 12 41 17 02 8.3 0.0 0 1116+0921 SAT APR 03 18 38 19 29 20 01 16 46 05 43 04 18 04 50 05 41 08 46 12 45 17 04 8.3 0.0 0 1205+0308 SUN APR 04 18 39 19 30 20 02 17 55 06 10 04 16 04 49 05 40 08 51 12 49 17 06 8.2 0.0 0 1255-0323 MON APR 05 18 40 19 31 20 03 19 05 06 39 04 15 04 47 05 38 08 56 12 53 17 09 8.2 0.0 0 1347-0952 TUE APR 06 18 41 19 32 20 04 20 19 07 12 04 13 04 45 05 37 09 01 12 57 17 11 8.1 0.2 3 1442-1555 WED APR 07 18 41 19 33 20 05 21 34 07 51 04 11 04 44 05 35 09 05 13 01 17 13 8.1 1.5 18 1540-2104 THU APR 08 18 42 19 34 20 06 22 50 04 10 04 42 05 34 09 10 13 05 17 16 8.1 2.7 33 1641-2456 FRI APR 09 18 43 19 35 20 07 00 02 04 08 04 41 05 32 09 15 13 09 17 18 8.0 3.9 48 1745-2708 SAT APR 10 18 44 19 36 20 09 01 06 04 06 04 39 05 31 09 21 13 13 17 20 8.0 5.0 62 1849-2730 SUN APR 11 18 45 19 37 20 10 02 00 04 05 04 38 05 29 09 26 13 17 17 23 7.9 5.8 73 1951-2605 MON APR 12 18 46 19 38 20 11 02 45 04 03 04 36 05 28 09 31 13 21 17 24 7.9 6.6 83 2051-2306 TUE APR 13 18 47 19 39 20 12 03 21 04 01 04 35 05 27 09 36 13 25 17 26 7.8 7.1 91 2146-1853 WED APR 14 18 48 19 40 20 13 03 51 04 00 04 33 05 25 09 41 13 29 17 29 7.8 7.6 98 2237-1348 THU APR 15 18 49 19 41 20 15 04 18 03 58 04 31 05 24 09 47 13 33 17 31 7.7 7.7 100 2326-0810 FRI APR 16 18 50 19 42 20 16 04 42 16 16 03 56 04 30 05 22 09 52 13 37 17 33 7.7 7.7 100 0012-0218 SAT APR 17 18 51 19 43 20 17 05 05 17 18 03 55 04 28 05 21 09 57 13 41 17 36 7.6 7.6 100 0057+0333 SUN APR 18 18 51 19 44 20 18 05 29 18 19 03 53 04 27 05 20 10 02 13 44 17 38 7.6 7.6 100 0142+0912 MON APR 19 18 52 19 45 20 19 05 55 19 20 03 51 04 25 05 18 10 07 13 48 17 40 7.5 7.5 100 0227+1425 TUE APR 20 18 53 19 46 20 21 06 23 20 22 03 50 04 24 05 17 10 13 13 52 17 43 7.5 7.5 99 0314+1901 WED APR 21 18 54 19 47 20 22 06 56 21 24 03 48 04 22 05 16 10 18 13 56 17 45 7.4 6.4 86 0403+2247 THU APR 22 18 55 19 48 20 23 07 34 22 24 03 46 04 21 05 14 10 23 14 00 17 47 7.4 5.4 72 0454+2534 FRI APR 23 18 56 19 50 20 24 23 22 03 45 04 20 05 13 10 28 14 04 17 50 7.4 4.4 59 0546+2712 SAT APR 24 18 57 19 51 20 26 00 15 03 43 04 18 05 12 10 34 14 08 17 52 7.3 3.5 47 0640+2735 SUN APR 25 18 58 19 52 20 27 01 02 03 42 04 17 05 11 10 38 14 12 17 55 7.2 2.7 36 0733+2643 MON APR 26 18 59 19 53 20 28 01 42 03 40 04 15 05 09 10 43 14 16 17 57 7.2 2.0 27 0826+2435 TUE APR 27 19 00 19 54 20 29 02 17 03 38 04 14 05 08 10 48 14 20 17 59 7.1 1.3 18 0917+2118 WED APR 28 19 01 19 55 20 31 02 48 03 37 04 12 05 07 10 54 14 24 18 01 7.1 0.8 11 1007+1658 THU APR 29 19 02 19 56 20 32 03 15 03 35 04 11 05 06 10 59 14 28 18 03 7.1 0.3 4 1056+1146 FRI APR 30 19 02 19 57 20 33 03 42 03 34 04 10 05 05 11 04 14 32 18 06 7.0 0.0 0 1144+0550 ONE LINE REFERS TO EVENING DATE FULL MOON APR 05 11:05 UT AND FOLLOWING MORNING. LAST QUARTER APR 12 03:50 UT All dates and times are zone PST NEW MOON APR 19 13:23 UT in upper table (except sid time). FIRST QUARTER APR 27 17:35 UT