LICK OBSERVATORY CALENDAR FOR 2018 -ASTRONOMICAL (computed for altitude 1283.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON(midnight) DATE(PST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) Zenith 2018 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ RA DEC Dist 12 18 18 12 18 18 h h % h m d m deg SUN APR 01 18 35 19 26 19 57 19 51 07 32 04 23 04 55 05 45 08 32 12 36 17 00 8.4 0.0 0 1419-0907 52 MON APR 02 18 36 19 27 19 59 20 52 08 07 04 22 04 53 05 44 08 38 12 40 17 03 8.4 0.9 10 1509-1302 61 TUE APR 03 18 37 19 28 20 00 21 51 08 45 04 20 04 52 05 42 08 43 12 44 17 04 8.3 1.9 22 1600-1616 71 WED APR 04 18 38 19 29 20 01 22 48 04 18 04 50 05 41 08 48 12 48 17 06 8.3 2.8 33 1651-1835 80 THU APR 05 18 39 19 30 20 02 23 42 04 16 04 49 05 40 08 53 12 52 17 08 8.2 3.7 44 1740-1956 89 FRI APR 06 18 40 19 31 20 03 00 33 04 15 04 47 05 38 08 58 12 56 17 11 8.2 4.5 54 1833-2051 >90 SAT APR 07 18 41 19 32 20 04 01 21 04 13 04 45 05 37 09 03 13 00 17 13 8.1 5.3 64 1923-2036 >90 SUN APR 08 18 41 19 33 20 05 02 04 04 11 04 44 05 35 09 08 13 03 17 15 8.1 6.0 73 2013-1927 >90 MON APR 09 18 42 19 34 20 06 02 44 04 10 04 42 05 34 09 13 13 07 17 18 8.1 6.6 82 2103-1729 >90 TUE APR 10 18 43 19 35 20 07 03 20 04 08 04 41 05 32 09 18 13 11 17 20 8.0 7.2 90 2151-1446 >90 WED APR 11 18 44 19 36 20 09 03 55 04 06 04 39 05 31 09 24 13 15 17 22 8.0 7.8 97 2239-1123 >90 THU APR 12 18 45 19 37 20 10 04 28 04 05 04 38 05 29 09 29 13 19 17 25 7.9 7.9 100 2328-0727 >90 FRI APR 13 18 46 19 38 20 11 05 00 16 32 04 03 04 36 05 28 09 34 13 23 17 27 7.9 7.9 100 0016-0306 >90 SAT APR 14 18 47 19 39 20 12 05 33 17 34 04 01 04 35 05 27 09 39 13 27 17 29 7.8 7.8 100 0106 0128 >90 SUN APR 15 18 48 19 40 20 13 06 07 18 38 04 00 04 33 05 25 09 43 13 31 17 32 7.8 7.8 100 0156 0603 >90 MON APR 16 18 49 19 41 20 15 06 45 19 44 03 58 04 31 05 24 09 49 13 35 17 34 7.7 7.7 100 0249 1024 >90 TUE APR 17 18 50 19 42 20 16 07 27 20 51 03 56 04 30 05 22 09 54 13 39 17 36 7.7 7.1 92 0344 1413 >90 WED APR 18 18 51 19 43 20 17 08 13 21 59 03 55 04 28 05 21 09 59 13 43 17 39 7.6 5.9 77 0442 1713 >90 THU APR 19 18 51 19 44 20 18 23 04 03 53 04 27 05 20 10 04 13 47 17 41 7.6 4.8 63 0541 1909 >90 FRI APR 20 18 52 19 45 20 19 00 06 03 51 04 25 05 18 10 09 13 51 17 42 7.5 3.7 49 0644 1917 >90 SAT APR 21 18 53 19 46 20 21 01 02 03 50 04 24 05 17 10 15 13 55 17 45 7.5 2.8 37 0742 1910 81 SUN APR 22 18 54 19 47 20 22 01 52 03 48 04 22 05 16 10 20 13 59 17 47 7.4 1.9 26 0841 1720 71 MON APR 23 18 55 19 48 20 23 02 36 03 46 04 21 05 14 10 25 14 03 17 49 7.4 1.2 15 0939 1425 62 TUE APR 24 18 56 19 50 20 24 03 15 03 45 04 20 05 13 10 30 14 07 17 52 7.4 0.5 6 1034 1038 55 WED APR 25 18 57 19 51 20 26 03 51 03 43 04 18 05 12 10 36 14 11 17 54 7.3 0.0 0 1127 0616 48 THU APR 26 18 58 19 52 20 27 04 24 03 42 04 17 05 11 10 41 14 14 17 57 7.2 0.0 0 1219 0135 45 FRI APR 27 18 59 19 53 20 28 16 35 04 57 03 40 04 15 05 09 10 46 14 18 17 59 7.2 0.0 0 1310-0309 44 SAT APR 28 19 00 19 54 20 29 17 37 05 30 03 38 04 14 05 08 10 51 14 22 18 01 7.1 0.0 0 1400-0741 45 SUN APR 29 19 01 19 55 20 31 18 38 06 04 03 37 04 12 05 07 10 57 14 26 18 04 7.1 0.0 0 1450-1150 49 MON APR 30 19 02 19 56 20 32 19 38 06 40 03 35 04 11 05 06 11 02 14 30 18 06 7.1 0.0 0 1541-1522 55 ONE LINE REFERS TO EVENING DATE LAST QUARTER Apr 08 07:18 UT AND FOLLOWING MORNING. NEW MOON Apr 16 01:57 UT All dates and times are zone PST FIRST QUARTER Apr 22 21:45 UT in upper table (except sid time). FULL MOON Apr 30 00:59 UT