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 WED SEP 01 18 44 19 35 20 08 00 47 04 06 04 39 05 30 18 48 22 40 02 47 8.0 4.7 58 0702 2506 >90 THU SEP 02 18 42 19 34 20 06 01 44 16 26 04 07 04 40 05 31 18 49 22 44 02 52 8.0 5.6 70 0757 2400 >90 FRI SEP 03 18 41 19 32 20 05 02 47 17 10 04 08 04 41 05 32 18 52 22 48 02 57 8.0 6.7 83 0850 2139 >90 SAT SEP 04 18 39 19 30 20 03 03 53 17 48 04 09 04 41 05 33 18 54 22 52 03 02 8.1 7.8 96 0943 1808 >90 SUN SEP 05 18 38 19 29 20 01 05 01 18 23 04 10 04 42 05 34 18 56 22 56 03 07 8.2 8.2 100 1035 1336 >90 MON SEP 06 18 36 19 27 19 59 06 09 18 53 04 11 04 43 05 34 18 58 23 00 03 12 8.2 8.2 100 1126 0816 >90 TUE SEP 07 18 35 19 26 19 58 07 18 19 23 04 12 04 44 05 35 19 01 23 04 03 17 8.2 8.2 100 1216 0224 >90 WED SEP 08 18 33 19 24 19 56 08 27 19 51 04 13 04 45 05 36 19 03 23 08 03 21 8.3 8.3 100 1307-0342 >90 THU SEP 09 18 32 19 22 19 54 20 21 04 14 04 46 05 37 19 05 23 12 03 26 8.3 7.9 94 1358-0943 >90 FRI SEP 10 18 30 19 21 19 53 20 53 04 15 04 47 05 38 19 08 23 16 03 31 8.4 7.4 88 1451-1517 >90 SAT SEP 11 18 29 19 19 19 51 21 29 04 16 04 48 05 39 19 10 23 20 03 36 8.4 6.8 80 1547-2004 >90 SUN SEP 12 18 27 19 17 19 49 22 12 04 17 04 49 05 39 19 12 23 24 03 41 8.5 6.1 71 1646-2344 >90 MON SEP 13 18 25 19 16 19 47 23 02 04 18 04 50 05 40 19 14 23 28 03 46 8.5 5.3 61 1747-2558 >90 TUE SEP 14 18 24 19 14 19 46 00 01 04 19 04 51 05 41 19 17 23 31 03 51 8.6 4.3 50 1854-2545 >90 WED SEP 15 18 22 19 13 19 44 01 05 04 20 04 52 05 42 19 19 23 35 03 56 8.6 3.3 37 1952-2529 82 THU SEP 16 18 21 19 11 19 42 16 05 02 13 04 21 04 53 05 43 19 21 23 39 04 01 8.6 2.1 24 2051-2304 72 FRI SEP 17 18 19 19 09 19 41 16 47 03 21 04 22 04 53 05 44 19 24 23 43 04 06 8.7 1.0 11 2147-1917 63 SAT SEP 18 18 18 19 08 19 39 17 21 04 28 04 23 04 54 05 44 19 26 23 47 04 11 8.7 0.0 0 2240-1434 54 SUN SEP 19 18 16 19 06 19 37 17 51 05 32 04 24 04 55 05 45 19 27 23 51 04 16 8.8 0.0 0 2329-0916 47 MON SEP 20 18 15 19 05 19 36 18 18 06 34 04 25 04 56 05 46 19 30 23 55 04 21 8.8 0.0 0 0017-0341 41 TUE SEP 21 18 13 19 03 19 34 18 43 07 35 04 26 04 57 05 47 19 32 23 59 04 26 8.9 0.0 0 0103 0156 38 WED SEP 22 18 12 19 01 19 32 19 08 08 35 04 27 04 58 05 48 19 34 00 03 04 31 8.9 0.0 0 0148 0721 38 THU SEP 23 18 10 19 00 19 31 19 34 04 28 04 59 05 49 19 37 00 07 04 36 9.0 0.1 0 0234 1222 41 FRI SEP 24 18 09 18 58 19 29 20 01 04 29 05 00 05 49 19 39 00 11 04 41 9.0 0.5 5 0321 1648 46 SAT SEP 25 18 07 18 57 19 27 20 32 04 30 05 01 05 50 19 41 00 15 04 46 9.0 1.1 11 0409 2029 53 SUN SEP 26 18 05 18 55 19 26 21 07 04 31 05 01 05 51 19 44 00 19 04 51 9.1 1.7 18 0459 2316 61 MON SEP 27 18 04 18 54 19 24 21 48 04 32 05 02 05 52 19 46 00 23 04 55 9.1 2.4 26 0551 2459 69 TUE SEP 28 18 02 18 52 19 23 22 35 04 33 05 03 05 53 19 49 00 27 05 00 9.2 3.2 34 0644 2531 78 WED SEP 29 18 01 18 50 19 21 23 30 04 33 05 04 05 54 19 51 00 31 05 04 9.2 4.1 45 0737 2443 87 THU SEP 30 17 59 18 49 19 19 00 30 04 34 05 05 05 55 19 53 00 35 05 09 9.2 5.2 56 0831 2258 >90 ONE LINE REFERS TO EVENING DATE NEW MOON Sep 07 00:50 UT AND FOLLOWING MORNING. FIRST QUARTER Sep 13 20:39 UT All dates and times are zone PST FULL MOON Sep 20 23:54 UT in upper table (except sid time). LAST QUARTER Sep 29 01:58 UT