KECK OBSERVATORY CALENDAR FOR 2023 -ASTRONOMICAL (computed for altitude 4160.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON(midnight) DATE(HST) 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 WED NOV 01 17 58 18 37 19 03 21 03 05 09 05 35 06 13 21 26 02 24 07 34 10.1 2.0 19 0634 2811 57 THU NOV 02 17 58 18 36 19 02 22 00 05 09 05 35 06 13 21 29 02 28 07 38 10.1 3.0 29 0730 2704 69 FRI NOV 03 17 57 18 36 19 02 22 56 05 09 05 35 06 14 21 33 02 32 07 42 10.1 3.9 38 0823 2439 80 SAT NOV 04 17 57 18 36 19 02 23 50 05 10 05 36 06 14 21 37 02 36 07 46 10.1 4.8 47 0909 2054 >90 SUN NOV 05 17 56 18 35 19 01 00 42 05 10 05 36 06 15 21 40 02 40 07 50 10.2 5.7 55 1000 1659 >90 MON NOV 06 17 56 18 35 19 01 01 32 14 12 05 11 05 37 06 15 21 44 02 43 07 55 10.2 6.5 64 1044 1208 >90 TUE NOV 07 17 56 18 34 19 01 02 21 14 45 05 11 05 37 06 16 21 48 02 47 07 59 10.2 7.3 72 1127 0650 >90 WED NOV 08 17 55 18 34 19 00 03 09 15 16 05 11 05 38 06 16 21 51 02 51 08 03 10.2 8.2 80 1209 0116 >90 THU NOV 09 17 55 18 34 19 00 03 59 15 47 05 12 05 38 06 17 21 54 02 55 08 08 10.2 9.0 88 1252-0426 >90 FRI NOV 10 17 55 18 34 19 00 04 50 16 20 05 12 05 38 06 17 21 58 02 59 08 12 10.2 9.8 96 1336-1004 >90 SAT NOV 11 17 54 18 33 18 59 05 43 16 54 05 13 05 39 06 18 22 01 03 03 08 17 10.2 10.2 100 1422-1525 >90 SUN NOV 12 17 54 18 33 18 59 06 40 17 33 05 13 05 39 06 18 22 05 03 07 08 21 10.2 10.2 100 1512-2014 >90 MON NOV 13 17 54 18 33 18 59 18 17 05 14 05 40 06 19 22 09 03 11 08 26 10.2 10.2 100 1605-2410 >90 TUE NOV 14 17 53 18 33 18 59 19 07 05 14 05 40 06 20 22 13 03 15 08 30 10.2 10.1 98 1703-2655 >90 WED NOV 15 17 53 18 32 18 59 20 03 05 14 05 41 06 20 22 17 03 19 08 34 10.2 9.2 89 1803-2810 >90 THU NOV 16 17 53 18 32 18 59 21 05 05 15 05 41 06 21 22 21 03 23 08 39 10.3 8.2 79 1905-2743 >90 FRI NOV 17 17 53 18 32 18 59 22 09 05 15 05 42 06 21 22 25 03 27 08 43 10.3 7.1 69 2006-2533 >90 SAT NOV 18 17 53 18 32 18 58 23 13 05 16 05 42 06 22 22 28 03 31 08 48 10.3 6.0 58 2105-2150 >90 SUN NOV 19 17 52 18 32 18 58 00 15 05 16 05 43 06 22 22 32 03 35 08 52 10.3 5.0 48 2203-1639 90 MON NOV 20 17 52 18 32 18 58 01 15 05 17 05 43 06 23 22 36 03 39 08 57 10.3 4.0 39 2254-1052 77 TUE NOV 21 17 52 18 32 18 58 02 14 05 17 05 44 06 24 22 40 03 43 09 00 10.3 3.0 29 2345-0424 63 WED NOV 22 17 52 18 32 18 58 14 24 03 12 05 18 05 45 06 24 22 44 03 47 09 05 10.3 2.1 20 0036 0222 50 THU NOV 23 17 52 18 32 18 58 15 01 04 10 05 18 05 45 06 25 22 48 03 51 09 09 10.3 1.1 10 0126 0900 36 FRI NOV 24 17 52 18 32 18 58 15 39 05 10 05 19 05 46 06 25 22 52 03 54 09 14 10.3 0.2 1 0219 1509 23 SAT NOV 25 17 52 18 32 18 58 16 21 06 12 05 19 05 46 06 26 22 56 03 58 09 18 10.3 0.0 0 0314 2028 11 SUN NOV 26 17 52 18 32 18 59 17 06 05 20 05 47 06 27 23 01 04 02 09 23 10.3 0.0 0 0411 2435 05 MON NOV 27 17 52 18 32 18 59 17 56 05 21 05 47 06 27 23 04 04 06 09 28 10.4 0.0 0 0510 2714 16 TUE NOV 28 17 52 18 32 18 59 18 50 05 21 05 48 06 28 23 08 04 10 09 32 10.4 0.0 0 0610 2816 28 WED NOV 29 17 52 18 32 18 59 19 46 05 22 05 48 06 28 23 12 04 14 09 37 10.4 0.8 7 0708 2743 40 THU NOV 30 17 52 18 32 18 59 20 43 05 22 05 49 06 29 23 16 04 18 09 41 10.4 1.7 16 0803 2544 52 ONE LINE REFERS TO EVENING DATE LAST QUARTER Nov 05 08:38 UT AND FOLLOWING MORNING. NEW MOON Nov 13 09:26 UT All dates and times are zone HST FIRST QUARTER Nov 20 10:49 UT in upper table (except sid time). FULL MOON Nov 27 09:17 UT