LICK OBSERVATORY CALENDAR FOR 2013 -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 2013 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 MON APR 01 18 35 19 26 19 57 00 27 04 23 04 55 05 45 08 33 12 37 17 00 8.4 4.5 53 1809-2022 >90 TUE APR 02 18 36 19 27 19 59 01 18 04 22 04 53 05 44 08 39 12 41 17 03 8.4 5.3 63 1909-1839 >90 WED APR 03 18 37 19 28 20 00 02 03 04 20 04 52 05 42 08 44 12 45 17 05 8.3 6.0 72 2006-1552 >90 THU APR 04 18 38 19 29 20 01 02 44 04 18 04 50 05 41 08 49 12 49 17 07 8.3 6.7 81 2100-1217 >90 FRI APR 05 18 39 19 30 20 02 03 20 04 16 04 49 05 40 08 54 12 53 17 09 8.2 7.3 88 2153-0808 >90 SAT APR 06 18 40 19 31 20 03 03 54 04 15 04 47 05 38 08 59 12 56 17 12 8.2 7.9 95 2243-0341 >90 SUN APR 07 18 41 19 32 20 04 04 26 16 22 04 13 04 45 05 37 09 04 13 00 17 14 8.1 8.1 100 2332 0050 >90 MON APR 08 18 41 19 33 20 05 04 58 17 24 04 11 04 44 05 35 09 09 13 04 17 16 8.1 8.1 100 0021 0514 >90 TUE APR 09 18 42 19 34 20 06 05 31 18 25 04 10 04 42 05 34 09 14 13 08 17 19 8.1 8.1 100 0110 0916 >90 WED APR 10 18 43 19 35 20 07 06 06 19 24 04 08 04 41 05 32 09 19 13 12 17 21 8.0 8.0 100 0158 1249 >90 THU APR 11 18 44 19 36 20 09 06 44 20 23 04 06 04 39 05 31 09 25 13 16 17 23 8.0 7.7 97 0248 1542 >90 FRI APR 12 18 45 19 37 20 10 07 25 21 19 04 05 04 38 05 29 09 29 13 20 17 26 7.9 6.8 85 0337 1750 >90 SAT APR 13 18 46 19 38 20 11 08 10 22 13 04 03 04 36 05 28 09 34 13 24 17 28 7.9 5.8 74 0428 1907 >90 SUN APR 14 18 47 19 39 20 12 08 58 23 02 04 01 04 35 05 27 09 39 13 28 17 30 7.8 5.0 63 0518 1931 >90 MON APR 15 18 48 19 40 20 13 23 48 04 00 04 33 05 25 09 44 13 32 17 33 7.8 4.2 53 0608 1901 >90 TUE APR 16 18 49 19 41 20 15 00 30 03 58 04 31 05 24 09 50 13 36 17 35 7.7 3.5 44 0658 1732 87 WED APR 17 18 50 19 42 20 16 01 09 03 56 04 30 05 22 09 55 13 40 17 36 7.7 2.8 36 0747 1527 79 THU APR 18 18 51 19 43 20 17 01 44 03 55 04 28 05 21 10 00 13 44 17 39 7.6 2.2 28 0835 1233 72 FRI APR 19 18 51 19 44 20 18 02 17 03 53 04 27 05 20 10 05 13 48 17 41 7.6 1.6 21 0924 0900 66 SAT APR 20 18 52 19 45 20 19 02 50 03 51 04 25 05 18 10 10 13 52 17 43 7.5 1.0 13 1012 0455 59 SUN APR 21 18 53 19 46 20 21 03 22 03 50 04 24 05 17 10 16 13 56 17 46 7.5 0.5 6 1102 0025 54 MON APR 22 18 54 19 47 20 22 03 56 03 48 04 22 05 16 10 21 14 00 17 48 7.4 0.0 0 1153-0416 51 TUE APR 23 18 55 19 48 20 23 16 44 04 32 03 46 04 21 05 14 10 26 14 03 17 50 7.4 0.0 0 1247-0856 50 WED APR 24 18 56 19 50 20 24 17 52 05 12 03 45 04 20 05 13 10 31 14 07 17 53 7.4 0.0 0 1343-1314 51 THU APR 25 18 57 19 51 20 26 19 01 05 57 03 43 04 18 05 12 10 37 14 11 17 55 7.3 0.0 0 1443-1652 55 FRI APR 26 18 58 19 52 20 27 20 11 06 49 03 42 04 17 05 11 10 42 14 15 17 58 7.2 0.0 0 1544-1929 61 SAT APR 27 18 59 19 53 20 28 21 17 07 47 03 40 04 15 05 09 10 47 14 19 18 00 7.2 0.8 11 1648-2048 68 SUN APR 28 19 00 19 54 20 29 22 19 08 50 03 38 04 14 05 08 10 52 14 23 18 02 7.1 1.8 25 1751-2038 76 MON APR 29 19 01 19 55 20 31 23 14 03 37 04 12 05 07 10 58 14 27 18 05 7.1 2.7 38 1853-1908 84 TUE APR 30 19 02 19 56 20 32 00 02 03 35 04 11 05 06 11 02 14 31 18 07 7.1 3.5 49 1952-1637 >90 ONE LINE REFERS TO EVENING DATE LAST QUARTER Apr 03 04:38 UT AND FOLLOWING MORNING. NEW MOON Apr 10 09:36 UT All dates and times are zone PST FIRST QUARTER Apr 18 12:32 UT in upper table (except sid time). FULL MOON Apr 25 19:57 UT