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 TUE APR 01 18 46 19 24 19 50 15 40 04 58 05 02 05 28 06 06 08 11 12 22 17 24 9.2 0.1 0 1045 1158 25 WED APR 02 18 46 19 24 19 50 16 29 05 30 05 01 05 27 06 05 08 15 12 26 17 27 9.2 0.0 0 1128 0634 19 THU APR 03 18 47 19 24 19 51 17 17 06 00 05 00 05 26 06 04 08 20 12 30 17 30 9.1 0.0 0 1211 0056 19 FRI APR 04 18 47 19 25 19 51 18 04 06 30 04 59 05 25 06 03 08 24 12 33 17 33 9.1 0.0 0 1253-0445 25 SAT APR 05 18 47 19 25 19 51 18 52 04 58 05 24 06 02 08 28 12 37 17 36 9.1 0.0 0 1336-1018 33 SUN APR 06 18 47 19 25 19 52 19 41 04 57 05 23 06 01 08 33 12 41 17 39 9.1 0.0 0 1421-1531 43 MON APR 07 18 48 19 26 19 52 20 32 04 56 05 22 06 00 08 37 12 45 17 42 9.1 0.7 7 1508-2011 53 TUE APR 08 18 48 19 26 19 52 21 26 04 55 05 21 06 00 08 41 12 49 17 45 9.0 1.6 17 1559-2403 64 WED APR 09 18 48 19 26 19 53 22 23 04 54 05 20 05 59 08 45 12 53 17 48 9.0 2.5 27 1653-2653 74 THU APR 10 18 48 19 27 19 53 23 20 04 53 05 20 05 58 08 49 12 57 17 51 9.0 3.5 38 1749-2819 85 FRI APR 11 18 49 19 27 19 53 00 17 04 52 05 19 05 57 08 53 13 01 17 54 9.0 4.4 48 1848-2826 >90 SAT APR 12 18 49 19 27 19 54 01 12 04 51 05 18 05 56 08 58 13 05 17 57 9.0 5.3 59 1947-2654 >90 SUN APR 13 18 49 19 28 19 54 02 03 04 50 05 17 05 55 09 02 13 09 18 00 8.9 6.2 68 2045-2349 >90 MON APR 14 18 50 19 28 19 55 02 50 04 50 05 16 05 55 09 07 13 13 18 04 8.9 6.9 77 2142-1919 >90 TUE APR 15 18 50 19 29 19 55 03 33 14 43 04 49 05 15 05 54 09 11 13 17 18 07 8.9 7.6 85 2236-1340 >90 WED APR 16 18 50 19 29 19 56 04 14 15 45 04 48 05 14 05 53 09 16 13 21 18 10 8.9 8.3 93 2329-0710 >90 THU APR 17 18 51 19 29 19 56 04 54 16 47 04 47 05 14 05 52 09 20 13 25 18 12 8.9 8.9 100 0022-0013 >90 FRI APR 18 18 51 19 30 19 56 05 35 17 50 04 46 05 13 05 51 09 24 13 29 18 15 8.8 8.8 100 0115 0646 >90 SAT APR 19 18 51 19 30 19 57 06 18 18 53 04 45 05 12 05 51 09 29 13 33 18 18 8.8 8.8 100 0209 1322 >90 SUN APR 20 18 52 19 30 19 57 19 59 04 44 05 11 05 50 09 33 13 37 18 21 8.8 8.8 99 0306 1907 >90 MON APR 21 18 52 19 31 19 58 21 06 04 43 05 10 05 49 09 38 13 40 18 24 8.7 7.6 87 0405 2337 >90 TUE APR 22 18 52 19 31 19 58 22 12 04 42 05 09 05 49 09 42 13 44 18 27 8.7 6.5 74 0505 2633 >90 WED APR 23 18 53 19 32 19 59 23 15 04 42 05 09 05 48 09 47 13 48 18 31 8.7 5.4 62 0607 2747 >90 THU APR 24 18 53 19 32 19 59 00 12 04 41 05 08 05 47 09 51 13 52 18 34 8.7 4.5 51 0709 2702 >90 FRI APR 25 18 53 19 32 20 00 01 03 04 40 05 07 05 46 09 56 13 56 18 37 8.7 3.6 41 0803 2521 80 SAT APR 26 18 54 19 33 20 00 01 47 04 39 05 06 05 46 10 00 14 00 18 40 8.7 2.9 33 0856 2211 70 SUN APR 27 18 54 19 33 20 01 02 25 04 38 05 06 05 45 10 04 14 04 18 43 8.6 2.2 25 0945 1804 61 MON APR 28 18 54 19 34 20 01 03 00 04 37 05 05 05 44 10 08 14 08 18 46 8.6 1.6 18 1031 1316 52 TUE APR 29 18 55 19 34 20 02 14 25 03 32 04 37 05 04 05 44 10 13 14 12 18 50 8.6 1.1 12 1115 0800 44 WED APR 30 18 55 19 35 20 02 15 13 04 02 04 36 05 03 05 43 10 17 14 16 18 53 8.6 0.6 6 1158 0227 38 ONE LINE REFERS TO EVENING DATE FULL MOON Apr 05 14:17 UT AND FOLLOWING MORNING. LAST QUARTER Apr 13 11:11 UT All dates and times are zone HST NEW MOON Apr 20 02:19 UT in upper table (except sid time). FIRST QUARTER Apr 27 02:19 UT