LICK OBSERVATORY CALENDAR FOR 2021 -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 2021 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 SAT MAY 01 19 02 19 57 20 33 00 25 03 34 04 10 05 05 11 08 14 35 18 10 7.0 3.9 55 1947-2529 >90 SUN MAY 02 19 03 19 58 20 35 01 13 03 32 04 08 05 03 11 14 14 39 18 12 6.9 4.6 66 2046-2315 >90 MON MAY 03 19 04 19 59 20 36 01 52 03 31 04 07 05 02 11 19 14 43 18 15 6.9 5.3 76 2140-1952 >90 TUE MAY 04 19 05 20 01 20 37 02 25 03 29 04 06 05 01 11 24 14 47 18 17 6.9 5.8 84 2231-1540 >90 WED MAY 05 19 06 20 02 20 38 02 54 03 28 04 04 05 00 11 28 14 51 18 20 6.8 6.3 91 2318-1056 >90 THU MAY 06 19 07 20 03 20 40 03 19 03 26 04 03 04 59 11 34 14 55 18 22 6.8 6.7 98 0003-0553 >90 FRI MAY 07 19 08 20 04 20 41 03 43 03 25 04 02 04 58 11 39 14 59 18 24 6.7 6.7 100 0046-0045 >90 SAT MAY 08 19 09 20 05 20 42 04 07 16 29 03 23 04 01 04 57 11 44 15 03 18 26 6.7 6.7 100 0129 0421 >90 SUN MAY 09 19 10 20 06 20 44 04 32 17 26 03 22 04 00 04 56 11 50 15 07 18 29 6.6 6.6 100 0212 0913 >90 MON MAY 10 19 11 20 07 20 45 04 59 18 24 03 21 03 58 04 55 11 55 15 11 18 32 6.6 6.6 100 0257 1344 >90 TUE MAY 11 19 12 20 08 20 46 05 29 19 23 03 19 03 57 04 54 12 00 15 15 18 34 6.6 6.6 100 0342 1742 >90 WED MAY 12 19 12 20 09 20 48 06 03 20 22 03 18 03 56 04 53 12 06 15 19 18 37 6.5 6.5 100 0430 2058 >90 THU MAY 13 19 13 20 10 20 49 06 43 21 20 03 17 03 55 04 52 12 11 15 23 18 40 6.5 5.9 92 0520 2320 >90 FRI MAY 14 19 14 20 12 20 50 07 30 22 16 03 15 03 54 04 51 12 16 15 27 18 42 6.4 5.0 77 0612 2440 >90 SAT MAY 15 19 15 20 13 20 51 08 23 23 08 03 14 03 53 04 50 12 21 15 30 18 45 6.4 4.1 64 0705 2450 >90 SUN MAY 16 19 16 20 14 20 53 23 55 03 13 03 52 04 50 12 27 15 34 18 48 6.3 3.3 52 0759 2347 >90 MON MAY 17 19 17 20 15 20 54 00 37 03 12 03 51 04 49 12 32 15 38 18 51 6.3 2.6 41 0853 2124 86 TUE MAY 18 19 18 20 16 20 55 01 13 03 10 03 50 04 48 12 37 15 42 18 53 6.3 2.0 31 0945 1803 79 WED MAY 19 19 19 20 17 20 56 01 46 03 09 03 49 04 47 12 42 15 46 18 56 6.2 1.4 22 1037 1338 72 THU MAY 20 19 19 20 18 20 58 02 16 03 08 03 48 04 46 12 48 15 50 18 59 6.2 0.9 14 1128 0820 66 FRI MAY 21 19 20 20 19 20 59 02 45 03 07 03 47 04 46 12 53 15 54 19 02 6.1 0.4 5 1219 0224 60 SAT MAY 22 19 21 20 20 21 00 03 15 03 06 03 46 04 45 12 58 15 58 19 05 6.1 0.0 0 1312-0355 56 SUN MAY 23 19 22 20 21 21 01 16 06 03 48 03 05 03 45 04 44 13 03 16 02 19 07 6.1 0.0 0 1407-1013 55 MON MAY 24 19 23 20 22 21 02 17 21 04 24 03 04 03 45 04 44 13 07 16 06 19 10 6.0 0.0 0 1504-1605 55 TUE MAY 25 19 23 20 23 21 04 18 38 05 06 03 03 03 44 04 43 13 13 16 10 19 13 6.0 0.0 0 1606-2100 58 WED MAY 26 19 24 20 24 21 05 19 55 05 57 03 02 03 43 04 43 13 18 16 14 19 16 5.9 0.0 0 1711-2431 63 THU MAY 27 19 25 20 25 21 06 21 08 06 56 03 01 03 42 04 42 13 23 16 18 19 19 5.9 0.0 0 1817-2617 69 FRI MAY 28 19 26 20 26 21 07 22 12 08 02 03 00 03 42 04 42 13 28 16 22 19 22 5.9 1.1 18 1922-2607 76 SAT MAY 29 19 26 20 27 21 08 23 06 02 59 03 41 04 41 13 33 16 26 19 25 5.9 2.0 33 2025-2417 84 SUN MAY 30 19 27 20 27 21 09 23 50 02 59 03 40 04 41 13 38 16 30 19 29 5.8 2.7 46 2121-2048 90 MON MAY 31 19 28 20 28 21 10 00 26 02 58 03 40 04 40 13 43 16 34 19 32 5.8 3.3 56 2217-1707 >90 ONE LINE REFERS TO EVENING DATE LAST QUARTER May 03 19:50 UT AND FOLLOWING MORNING. NEW MOON May 11 18:59 UT All dates and times are zone PST FIRST QUARTER May 19 19:13 UT in upper table (except sid time). FULL MOON May 26 11:14 UT