KECK OBSERVATORY CALENDAR FOR 2042 -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 2042 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 MON SEP 01 18 48 19 26 19 53 20 00 04 52 05 18 05 56 18 17 22 25 03 18 9.0 0.1 1 0049 0410 38 TUE SEP 02 18 47 19 25 19 52 20 40 04 52 05 18 05 57 18 20 22 29 03 22 9.0 0.8 8 0143 1103 47 WED SEP 03 18 46 19 24 19 51 21 22 04 52 05 19 05 57 18 23 22 33 03 26 9.0 1.5 16 0238 1711 58 THU SEP 04 18 45 19 23 19 50 22 07 04 53 05 19 05 57 18 26 22 37 03 30 9.0 2.3 25 0336 2211 69 FRI SEP 05 18 44 19 22 19 49 22 57 04 53 05 19 05 57 18 29 22 41 03 34 9.1 3.1 34 0435 2543 80 SAT SEP 06 18 43 19 21 19 48 23 52 04 53 05 19 05 57 18 32 22 45 03 38 9.1 4.1 44 0531 2713 >90 SUN SEP 07 18 43 19 21 19 47 00 50 14 17 04 54 05 20 05 58 18 35 22 49 03 43 9.1 5.1 55 0636 2753 >90 MON SEP 08 18 42 19 20 19 46 01 49 15 13 04 54 05 20 05 58 18 38 22 52 03 47 9.1 6.1 66 0734 2631 >90 TUE SEP 09 18 41 19 19 19 45 02 48 16 03 04 54 05 20 05 58 18 41 22 56 03 51 9.2 7.0 77 0829 2348 >90 WED SEP 10 18 40 19 18 19 44 03 45 16 47 04 54 05 20 05 58 18 44 23 00 03 55 9.2 8.0 87 0920 1959 >90 THU SEP 11 18 39 19 17 19 43 04 38 17 26 04 55 05 21 05 59 18 47 23 04 04 00 9.2 8.9 96 1007 1523 >90 FRI SEP 12 18 38 19 16 19 42 05 29 18 01 04 55 05 21 05 59 18 50 23 08 04 04 9.2 9.2 100 1052 1014 >90 SAT SEP 13 18 37 19 15 19 41 06 18 18 33 04 55 05 21 05 59 18 52 23 12 04 08 9.2 9.2 100 1135 0446 >90 SUN SEP 14 18 36 19 14 19 40 19 04 04 56 05 21 05 59 18 55 23 16 04 13 9.3 9.3 100 1216-0049 >90 MON SEP 15 18 35 19 13 19 39 19 34 04 56 05 22 05 59 18 58 23 20 04 17 9.3 9.3 100 1258-0622 >90 TUE SEP 16 18 34 19 12 19 38 20 05 04 56 05 22 06 00 19 01 23 24 04 21 9.3 8.8 95 1340-1142 >90 WED SEP 17 18 33 19 11 19 37 20 38 04 56 05 22 06 00 19 04 23 28 04 25 9.3 8.3 89 1423-1639 >90 THU SEP 18 18 32 19 10 19 36 21 15 04 57 05 22 06 00 19 07 23 32 04 30 9.3 7.7 82 1509-2102 >90 FRI SEP 19 18 32 19 09 19 35 21 55 04 57 05 23 06 00 19 10 23 36 04 34 9.4 7.0 75 1558-2439 >90 SAT SEP 20 18 31 19 08 19 34 22 41 04 57 05 23 06 00 19 13 23 40 04 38 9.4 6.3 66 1651-2716 >90 SUN SEP 21 18 30 19 07 19 33 23 32 04 57 05 23 06 01 19 16 23 44 04 42 9.4 5.4 57 1746-2840 >90 MON SEP 22 18 29 19 06 19 32 00 28 04 58 05 23 06 01 19 19 23 48 04 46 9.4 4.5 47 1846-2830 88 TUE SEP 23 18 28 19 05 19 31 14 05 01 28 04 58 05 23 06 01 19 22 23 52 04 50 9.5 3.5 37 1944-2657 76 WED SEP 24 18 27 19 05 19 30 14 57 02 30 04 58 05 24 06 01 19 25 23 56 04 54 9.5 2.5 26 2042-2346 64 THU SEP 25 18 26 19 04 19 29 15 44 03 33 04 58 05 24 06 01 19 28 23 59 04 58 9.5 1.4 14 2140-1903 52 FRI SEP 26 18 25 19 03 19 28 16 29 04 36 04 59 05 24 06 02 19 31 00 03 05 03 9.5 0.4 4 2235-1305 39 SAT SEP 27 18 24 19 02 19 27 17 11 05 38 04 59 05 24 06 02 19 34 00 07 05 07 9.5 0.0 0 2330-0614 28 SUN SEP 28 18 23 19 01 19 26 17 51 06 40 04 59 05 25 06 02 19 37 00 11 05 11 9.6 0.0 0 0024 0104 19 MON SEP 29 18 23 19 00 19 26 18 32 04 59 05 25 06 02 19 40 00 15 05 15 9.6 0.0 0 0119 0820 19 TUE SEP 30 18 22 18 59 19 25 19 14 05 00 05 25 06 03 19 43 00 19 05 20 9.6 0.0 0 0216 1504 28 ONE LINE REFERS TO EVENING DATE LAST QUARTER Sep 06 17:09 UT AND FOLLOWING MORNING. NEW MOON Sep 14 08:48 UT All dates and times are zone HST FIRST QUARTER Sep 22 13:21 UT in upper table (except sid time). FULL MOON Sep 29 10:36 UT