LICK OBSERVATORY CALENDAR FOR 2031 -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 2031 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 TUE APR 01 18 35 19 26 19 57 02 53 04 23 04 55 05 45 08 32 12 35 16 59 8.4 1.5 17 0833 1313 59 WED APR 02 18 36 19 27 19 59 03 25 04 22 04 53 05 44 08 38 12 39 17 02 8.4 1.0 11 0921 0929 53 THU APR 03 18 37 19 28 20 00 03 56 04 20 04 52 05 42 08 43 12 43 17 04 8.3 0.4 4 1009 0513 48 FRI APR 04 18 38 19 29 20 01 04 27 04 18 04 50 05 41 08 47 12 47 17 06 8.3 0.0 0 1058 0035 45 SAT APR 05 18 39 19 30 20 02 16 44 04 59 04 16 04 49 05 40 08 52 12 51 17 08 8.2 0.0 0 1148-0414 44 SUN APR 06 18 40 19 31 20 03 17 47 05 33 04 15 04 47 05 38 08 57 12 55 17 11 8.2 0.0 0 1239-0900 46 MON APR 07 18 41 19 32 20 04 18 53 06 10 04 13 04 45 05 37 09 02 12 59 17 13 8.1 0.0 0 1333-1326 51 TUE APR 08 18 41 19 33 20 05 20 01 06 53 04 11 04 44 05 35 09 07 13 03 17 15 8.1 0.0 0 1430-1712 58 WED APR 09 18 42 19 34 20 06 21 08 07 41 04 10 04 42 05 34 09 12 13 07 17 18 8.1 1.0 12 1530-2001 66 THU APR 10 18 43 19 35 20 07 22 14 08 36 04 08 04 41 05 32 09 17 13 11 17 19 8.0 2.1 26 1631-2130 75 FRI APR 11 18 44 19 36 20 09 23 15 04 06 04 39 05 31 09 23 13 15 17 21 8.0 3.1 38 1732-2139 85 SAT APR 12 18 45 19 37 20 10 00 10 04 05 04 38 05 29 09 28 13 19 17 24 7.9 4.0 50 1834-2035 >90 SUN APR 13 18 46 19 38 20 11 00 59 04 03 04 36 05 28 09 33 13 23 17 26 7.9 4.8 61 1933-1810 >90 MON APR 14 18 47 19 39 20 12 01 41 04 01 04 35 05 27 09 38 13 27 17 28 7.8 5.5 70 2030-1444 >90 TUE APR 15 18 48 19 40 20 13 02 19 04 00 04 33 05 25 09 43 13 31 17 31 7.8 6.1 78 2124-1035 >90 WED APR 16 18 49 19 41 20 15 02 54 03 58 04 31 05 24 09 49 13 34 17 33 7.7 6.7 86 2216-0558 >90 THU APR 17 18 50 19 42 20 16 03 26 03 56 04 30 05 22 09 54 13 38 17 35 7.7 7.2 93 2306-0110 >90 FRI APR 18 18 51 19 43 20 17 03 58 16 11 03 55 04 28 05 21 09 59 13 42 17 38 7.6 7.6 100 2356 0336 >90 SAT APR 19 18 51 19 44 20 18 04 31 17 14 03 53 04 27 05 20 10 04 13 46 17 40 7.6 7.6 100 0045 0805 >90 SUN APR 20 18 52 19 45 20 19 05 05 18 16 03 51 04 25 05 18 10 09 13 50 17 42 7.5 7.5 100 0135 1206 >90 MON APR 21 18 53 19 46 20 21 05 42 19 17 03 50 04 24 05 17 10 15 13 54 17 45 7.5 7.5 100 0225 1527 >90 TUE APR 22 18 54 19 47 20 22 06 22 20 17 03 48 04 22 05 16 10 20 13 58 17 47 7.4 7.4 100 0316 1801 >90 WED APR 23 18 55 19 48 20 23 07 06 21 13 03 46 04 21 05 14 10 24 14 02 17 49 7.4 6.5 88 0407 1940 >90 THU APR 24 18 56 19 50 20 24 07 54 22 06 03 45 04 20 05 13 10 29 14 06 17 52 7.4 5.6 76 0458 2022 >90 FRI APR 25 18 57 19 51 20 26 08 45 22 54 03 43 04 18 05 12 10 35 14 10 17 54 7.3 4.8 66 0549 2007 >90 SAT APR 26 18 58 19 52 20 27 23 37 03 42 04 17 05 11 10 40 14 14 17 56 7.2 4.1 56 0639 1856 >90 SUN APR 27 18 59 19 53 20 28 00 16 03 40 04 15 05 09 10 45 14 18 17 58 7.2 3.4 47 0729 1638 89 MON APR 28 19 00 19 54 20 29 00 51 03 38 04 14 05 08 10 50 14 22 18 00 7.1 2.8 38 0816 1404 83 TUE APR 29 19 01 19 55 20 31 01 23 03 37 04 12 05 07 10 56 14 26 18 03 7.1 2.2 31 0903 1039 76 WED APR 30 19 02 19 56 20 32 01 54 03 35 04 11 05 06 11 01 14 30 18 05 7.1 1.7 23 0950 0641 70 ONE LINE REFERS TO EVENING DATE FULL MOON Apr 07 17:21 UT AND FOLLOWING MORNING. LAST QUARTER Apr 14 12:58 UT All dates and times are zone PST NEW MOON Apr 21 16:57 UT in upper table (except sid time). FIRST QUARTER Apr 29 19:19 UT