KECK OBSERVATORY CALENDAR FOR 2022 -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 2022 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 THU SEP 01 18 48 19 26 19 53 22 35 04 52 05 18 05 56 18 17 22 24 03 17 9.0 6.3 69 1517-1918 >90 FRI SEP 02 18 47 19 25 19 52 23 22 04 52 05 18 05 57 18 19 22 28 03 21 9.0 5.5 61 1613-2328 >90 SAT SEP 03 18 46 19 24 19 51 00 16 04 52 05 19 05 57 18 22 22 32 03 25 9.0 4.6 51 1716-2610 90 SUN SEP 04 18 45 19 23 19 50 01 16 04 53 05 19 05 57 18 25 22 36 03 30 9.0 3.6 39 1818-2737 78 MON SEP 05 18 44 19 22 19 49 14 55 02 21 04 53 05 19 05 57 18 28 22 40 03 34 9.1 2.5 27 1923-2708 67 TUE SEP 06 18 43 19 21 19 48 15 54 03 28 04 53 05 19 05 57 18 31 22 44 03 38 9.1 1.4 15 2028-2444 56 WED SEP 07 18 43 19 21 19 47 16 48 04 34 04 54 05 20 05 58 18 34 22 48 03 43 9.1 0.3 3 2129-2040 45 THU SEP 08 18 42 19 20 19 46 17 36 05 37 04 54 05 20 05 58 18 37 22 52 03 47 9.1 0.0 0 2227-1522 36 FRI SEP 09 18 41 19 19 19 45 18 19 06 38 04 54 05 20 05 58 18 40 22 56 03 51 9.2 0.0 0 2322-0916 30 SAT SEP 10 18 40 19 18 19 44 18 59 04 54 05 20 05 58 18 43 23 00 03 55 9.2 0.0 0 0013-0249 29 SUN SEP 11 18 39 19 17 19 43 19 36 04 55 05 21 05 59 18 46 23 04 03 59 9.2 0.0 0 0103 0336 33 MON SEP 12 18 38 19 16 19 42 20 13 04 55 05 21 05 59 18 49 23 08 04 03 9.2 0.5 5 0152 0939 41 TUE SEP 13 18 37 19 15 19 41 20 50 04 55 05 21 05 59 18 52 23 12 04 07 9.2 1.2 12 0242 1504 50 WED SEP 14 18 36 19 14 19 40 21 28 04 56 05 21 05 59 18 55 23 15 04 12 9.3 1.8 19 0332 1938 60 THU SEP 15 18 35 19 13 19 39 22 10 04 56 05 22 05 59 18 58 23 19 04 16 9.3 2.5 27 0423 2311 70 FRI SEP 16 18 34 19 12 19 38 22 54 04 56 05 22 06 00 19 01 23 23 04 20 9.3 3.3 35 0515 2535 80 SAT SEP 17 18 33 19 11 19 37 23 42 04 56 05 22 06 00 19 04 23 27 04 24 9.3 4.1 43 0606 2636 90 SUN SEP 18 18 32 19 10 19 36 00 33 04 57 05 22 06 00 19 07 23 31 04 29 9.3 4.9 52 0701 2643 >90 MON SEP 19 18 32 19 09 19 35 01 27 14 49 04 57 05 23 06 00 19 09 23 35 04 33 9.4 5.9 62 0754 2525 >90 TUE SEP 20 18 31 19 08 19 34 02 21 15 34 04 57 05 23 06 00 19 12 23 39 04 37 9.4 6.8 72 0844 2258 >90 WED SEP 21 18 30 19 07 19 33 03 15 16 16 04 57 05 23 06 01 19 15 23 43 04 41 9.4 7.7 81 0934 1930 >90 THU SEP 22 18 29 19 06 19 32 04 08 16 55 04 58 05 23 06 01 19 18 23 47 04 46 9.4 8.6 91 1021 1509 >90 FRI SEP 23 18 28 19 05 19 31 05 01 17 31 04 58 05 23 06 01 19 21 23 51 04 50 9.5 9.5 100 1107 1007 >90 SAT SEP 24 18 27 19 05 19 30 05 53 18 06 04 58 05 24 06 01 19 24 23 55 04 54 9.5 9.5 100 1153 0433 >90 SUN SEP 25 18 26 19 04 19 29 06 47 18 40 04 58 05 24 06 01 19 27 23 59 04 58 9.5 9.5 100 1238-0119 >90 MON SEP 26 18 25 19 03 19 28 19 16 04 59 05 24 06 02 19 30 00 03 05 03 9.5 9.5 100 1325-0716 >90 TUE SEP 27 18 24 19 02 19 27 19 53 04 59 05 24 06 02 19 33 00 07 05 07 9.5 9.1 95 1414-1301 >90 WED SEP 28 18 23 19 01 19 26 20 34 04 59 05 25 06 02 19 36 00 11 05 11 9.6 8.4 88 1506-1816 >90 THU SEP 29 18 23 19 00 19 26 21 20 04 59 05 25 06 02 19 40 00 15 05 14 9.6 7.6 80 1601-2240 >90 FRI SEP 30 18 22 18 59 19 25 22 11 05 00 05 25 06 03 19 43 00 19 05 19 9.6 6.8 71 1700-2552 >90 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Sep 03 18:07 UT AND FOLLOWING MORNING. FULL MOON Sep 10 09:59 UT All dates and times are zone HST LAST QUARTER Sep 17 21:53 UT in upper table (except sid time). NEW MOON Sep 25 21:53 UT