KECK OBSERVATORY CALENDAR FOR 2037 -NAUTICAL (computed for altitude 4160.0 m) NAUTICAL(12 deg) TWILIGHT/DAWN MOON(midnight) DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (12 deg) Zenith 2037 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ RA DEC Dist 12 18 18 12 12 12 h h % h m d m deg WED APR 01 18 46 19 24 19 50 20 13 05 02 05 28 06 06 07 46 12 22 17 51 10.1 0.8 8 1441-1042 46 THU APR 02 18 46 19 24 19 50 21 13 05 01 05 27 06 05 07 50 12 26 17 54 10.1 1.8 18 1538-1451 58 FRI APR 03 18 47 19 24 19 51 22 12 05 00 05 26 06 04 07 54 12 30 17 57 10.0 2.8 27 1634-1802 71 SAT APR 04 18 47 19 25 19 51 23 09 04 59 05 25 06 03 07 59 12 34 18 00 10.0 3.7 37 1729-2005 83 SUN APR 05 18 47 19 25 19 51 00 03 04 58 05 24 06 02 08 02 12 38 18 03 10.0 4.6 46 1824-2107 >90 MON APR 06 18 47 19 25 19 52 00 54 04 57 05 23 06 01 08 06 12 42 18 06 10.0 5.5 55 1918-2102 >90 TUE APR 07 18 48 19 26 19 52 01 42 04 56 05 22 06 00 08 11 12 46 18 09 9.9 6.3 63 2009-1959 >90 WED APR 08 18 48 19 26 19 52 02 26 04 55 05 21 06 00 08 15 12 50 18 12 9.9 7.0 70 2059-1804 >90 THU APR 09 18 48 19 26 19 53 03 07 14 18 04 54 05 20 05 59 08 19 12 54 18 15 9.9 7.7 77 2147-1526 >90 FRI APR 10 18 48 19 27 19 53 03 46 15 07 04 53 05 20 05 58 08 24 12 58 18 19 9.9 8.3 84 2233-1212 >90 SAT APR 11 18 49 19 27 19 53 04 23 15 56 04 52 05 19 05 57 08 28 13 02 18 22 9.9 8.9 90 2318-0832 >90 SUN APR 12 18 49 19 27 19 54 04 59 16 45 04 51 05 18 05 56 08 32 13 06 18 25 9.8 9.5 96 0002-0431 >90 MON APR 13 18 49 19 28 19 54 05 35 17 33 04 50 05 17 05 55 08 37 13 10 18 28 9.8 9.8 100 0047-0019 >90 TUE APR 14 18 50 19 28 19 55 06 11 18 22 04 50 05 16 05 55 08 41 13 14 18 31 9.8 9.8 100 0132 0357 >90 WED APR 15 18 50 19 29 19 55 06 49 19 13 04 49 05 15 05 54 08 46 13 18 18 34 9.8 9.8 100 0218 0806 >90 THU APR 16 18 50 19 29 19 56 20 05 04 48 05 14 05 53 08 50 13 22 18 36 9.7 9.1 93 0305 1159 >90 FRI APR 17 18 51 19 29 19 56 20 58 04 47 05 14 05 52 08 54 13 26 18 40 9.7 8.3 84 0355 1523 >90 SAT APR 18 18 51 19 30 19 56 21 53 04 46 05 13 05 51 08 59 13 29 18 43 9.7 7.3 75 0447 1806 >90 SUN APR 19 18 51 19 30 19 57 22 50 04 45 05 12 05 51 09 03 13 33 18 46 9.7 6.4 65 0542 1956 >90 MON APR 20 18 52 19 30 19 57 23 46 04 44 05 11 05 50 09 07 13 37 18 49 9.7 5.4 55 0639 2041 >90 TUE APR 21 18 52 19 31 19 58 00 42 04 43 05 10 05 49 09 12 13 41 18 52 9.7 4.5 46 0737 2011 84 WED APR 22 18 52 19 31 19 58 01 35 04 42 05 09 05 49 09 16 13 45 18 55 9.6 3.6 37 0835 1832 72 THU APR 23 18 53 19 32 19 59 02 25 04 42 05 09 05 48 09 20 13 49 18 59 9.6 2.7 28 0934 1540 61 FRI APR 24 18 53 19 32 19 59 03 14 04 41 05 08 05 47 09 24 13 53 19 02 9.6 1.9 19 1031 1145 49 SAT APR 25 18 53 19 32 20 00 14 50 04 00 04 40 05 07 05 46 09 28 13 57 19 05 9.6 1.1 11 1128 0701 38 SUN APR 26 18 54 19 33 20 00 15 52 04 45 04 39 05 06 05 46 09 33 14 01 19 08 9.6 0.3 3 1224 0148 30 MON APR 27 18 54 19 33 20 01 16 53 05 30 04 38 05 06 05 45 09 37 14 05 19 12 9.6 0.0 0 1319-0334 26 TUE APR 28 18 54 19 34 20 01 17 54 06 15 04 37 05 05 05 44 09 42 14 09 19 15 9.5 0.0 0 1415-0843 29 WED APR 29 18 55 19 34 20 02 18 54 04 37 05 04 05 44 09 46 14 13 19 18 9.5 0.0 0 1512-1319 36 THU APR 30 18 55 19 35 20 02 19 55 04 36 05 03 05 43 09 51 14 17 19 21 9.5 0.3 3 1609-1703 46 ONE LINE REFERS TO EVENING DATE LAST QUARTER Apr 07 11:26 UT AND FOLLOWING MORNING. NEW MOON Apr 15 16:11 UT All dates and times are zone HST FIRST QUARTER Apr 23 03:12 UT in upper table (except sid time). FULL MOON Apr 29 18:56 UT