LICK OBSERVATORY CALENDAR FOR 2023 -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 2023 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 AUG 01 19 22 20 19 20 57 19 42 06 12 03 29 04 07 05 04 17 33 20 36 00 06 6.5 0.0 0 2128-2049 59 WED AUG 02 19 21 20 18 20 56 20 19 07 30 03 30 04 08 05 05 17 36 20 40 00 11 6.6 0.0 0 2228-1459 58 THU AUG 03 19 20 20 17 20 55 20 51 08 45 03 31 04 09 05 05 17 38 20 44 00 16 6.6 0.0 0 2323-0822 59 FRI AUG 04 19 19 20 16 20 53 21 19 03 33 04 10 05 06 17 40 20 48 00 21 6.7 0.4 6 0016-0128 62 SAT AUG 05 19 18 20 14 20 52 21 46 03 34 04 11 05 07 17 43 20 52 00 26 6.7 0.9 13 0107 0516 66 SUN AUG 06 19 17 20 13 20 50 22 13 03 35 04 12 05 08 17 45 20 56 00 31 6.7 1.4 20 0158 1129 72 MON AUG 07 19 16 20 12 20 49 22 42 03 36 04 13 05 09 17 48 21 00 00 36 6.8 1.9 27 0248 1655 78 TUE AUG 08 19 15 20 11 20 47 23 14 03 38 04 14 05 10 17 50 21 04 00 42 6.9 2.5 35 0340 2119 84 WED AUG 09 19 14 20 09 20 46 23 51 03 39 04 15 05 11 17 53 21 08 00 47 6.9 3.1 44 0432 2409 >90 THU AUG 10 19 13 20 08 20 44 00 35 03 40 04 16 05 11 17 55 21 12 00 52 6.9 3.8 55 0529 2638 >90 FRI AUG 11 19 12 20 07 20 43 01 25 16 32 03 41 04 17 05 12 17 58 21 15 00 57 7.0 4.7 67 0623 2714 >90 SAT AUG 12 19 10 20 05 20 41 02 21 17 23 03 42 04 18 05 13 18 00 21 19 01 02 7.0 5.7 80 0717 2630 >90 SUN AUG 13 19 09 20 04 20 40 03 20 18 07 03 44 04 19 05 14 18 03 21 23 01 08 7.1 6.7 94 0809 2432 >90 MON AUG 14 19 08 20 02 20 38 04 21 18 44 03 45 04 20 05 15 18 05 21 27 01 13 7.1 7.1 100 0858 2129 >90 TUE AUG 15 19 07 20 01 20 36 05 21 19 14 03 46 04 22 05 16 18 07 21 31 01 18 7.2 7.2 100 0945 1733 >90 WED AUG 16 19 06 20 00 20 35 06 21 19 40 03 47 04 23 05 17 18 10 21 35 01 23 7.2 7.2 100 1030 1257 >90 THU AUG 17 19 04 19 58 20 33 07 19 20 04 03 49 04 24 05 17 18 12 21 39 01 29 7.3 7.3 100 1113 0750 >90 FRI AUG 18 19 03 19 57 20 32 08 17 20 26 03 50 04 25 05 18 18 15 21 43 01 34 7.3 7.3 100 1155 0224 >90 SAT AUG 19 19 02 19 55 20 30 20 47 03 51 04 26 05 19 18 16 21 47 01 39 7.3 7.1 96 1237-0311 >90 SUN AUG 20 19 00 19 54 20 28 21 09 03 52 04 27 05 20 18 18 21 51 01 44 7.4 6.7 90 1320-0846 >90 MON AUG 21 18 59 19 52 20 27 21 33 03 53 04 28 05 21 18 21 21 55 01 49 7.4 6.3 85 1405-1409 >90 TUE AUG 22 18 58 19 51 20 25 22 01 03 54 04 29 05 22 18 23 21 59 01 53 7.5 5.9 78 1453-1907 >90 WED AUG 23 18 56 19 49 20 23 22 35 03 56 04 30 05 23 18 25 22 03 01 59 7.6 5.3 70 1545-2324 >90 THU AUG 24 18 55 19 48 20 22 23 16 03 57 04 31 05 23 18 28 22 07 02 04 7.6 4.7 61 1642-2640 >90 FRI AUG 25 18 54 19 46 20 20 00 08 03 58 04 32 05 24 18 30 22 11 02 09 7.6 3.8 50 1746-2758 >90 SAT AUG 26 18 52 19 45 20 18 01 11 03 59 04 33 05 25 18 32 22 15 02 14 7.7 2.8 36 1848-2832 82 SUN AUG 27 18 51 19 43 20 17 16 42 02 24 04 00 04 34 05 26 18 35 22 19 02 19 7.7 1.6 20 1954-2649 73 MON AUG 28 18 49 19 41 20 15 17 31 03 42 04 01 04 35 05 27 18 37 22 23 02 24 7.8 0.3 4 2058-2304 64 TUE AUG 29 18 48 19 40 20 13 18 12 05 01 04 02 04 36 05 28 18 39 22 26 02 29 7.8 0.0 0 2200-1745 55 WED AUG 30 18 46 19 38 20 11 18 47 06 19 04 04 04 37 05 29 18 41 22 30 02 35 7.9 0.0 0 2258-1120 49 THU AUG 31 18 45 19 37 20 10 19 17 07 34 04 05 04 38 05 29 18 44 22 34 02 40 7.9 0.0 0 2353-0419 45 ONE LINE REFERS TO EVENING DATE FULL MOON Aug 01 18:31 UT AND FOLLOWING MORNING. LAST QUARTER Aug 08 10:27 UT All dates and times are zone PST NEW MOON Aug 16 09:37 UT in upper table (except sid time). FIRST QUARTER Aug 24 09:57 UT FULL MOON Aug 31 01:36 UT