KECK OBSERVATORY CALENDAR FOR 2050 -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 2050 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 FRI APR 01 18 46 19 24 19 50 14 10 03 25 05 02 05 28 06 06 07 45 12 22 17 51 10.1 2.0 20 0914 1011 46 SAT APR 02 18 46 19 24 19 50 14 59 04 01 05 01 05 27 06 05 07 49 12 26 17 54 10.1 1.4 14 1000 0621 38 SUN APR 03 18 47 19 24 19 51 15 47 04 37 05 00 05 26 06 04 07 53 12 30 17 57 10.0 0.8 8 1045 0213 31 MON APR 04 18 47 19 25 19 51 16 36 05 13 04 59 05 25 06 03 07 58 12 34 18 00 10.0 0.2 1 1131-0203 27 TUE APR 05 18 47 19 25 19 51 17 25 05 49 04 58 05 24 06 02 08 02 12 38 18 03 10.0 0.0 0 1217-0618 27 WED APR 06 18 47 19 25 19 52 18 15 06 28 04 57 05 23 06 01 08 06 12 42 18 05 10.0 0.0 0 1305-1021 31 THU APR 07 18 48 19 26 19 52 19 07 04 56 05 22 06 00 08 11 12 46 18 08 9.9 0.0 0 1354-1402 38 FRI APR 08 18 48 19 26 19 52 20 00 04 55 05 21 06 00 08 15 12 49 18 11 9.9 0.6 5 1446-1708 47 SAT APR 09 18 48 19 26 19 53 20 55 04 54 05 20 05 59 08 19 12 53 18 14 9.9 1.5 14 1540-1925 57 SUN APR 10 18 48 19 27 19 53 21 50 04 53 05 20 05 58 08 24 12 57 18 18 9.9 2.4 24 1636-2044 67 MON APR 11 18 49 19 27 19 53 22 46 04 52 05 19 05 57 08 28 13 01 18 21 9.9 3.3 33 1733-2053 78 TUE APR 12 18 49 19 27 19 54 23 40 04 51 05 18 05 56 08 31 13 05 18 24 9.8 4.2 42 1829-1946 89 WED APR 13 18 49 19 28 19 54 00 32 04 50 05 17 05 55 08 36 13 09 18 27 9.8 5.1 51 1928-1747 >90 THU APR 14 18 50 19 28 19 55 01 22 04 50 05 16 05 55 08 40 13 13 18 30 9.8 5.9 60 2024-1436 >90 FRI APR 15 18 50 19 29 19 55 02 09 04 49 05 15 05 54 08 45 13 17 18 33 9.8 6.7 68 2120-1033 >90 SAT APR 16 18 50 19 29 19 56 02 55 14 29 04 48 05 14 05 53 08 49 13 21 18 36 9.7 7.4 76 2215-0554 >90 SUN APR 17 18 51 19 29 19 56 03 40 15 29 04 47 05 14 05 52 08 53 13 25 18 40 9.7 8.2 83 2309-0055 >90 MON APR 18 18 51 19 30 19 56 04 25 16 30 04 46 05 13 05 51 08 58 13 29 18 43 9.7 8.9 91 0003 0407 >90 TUE APR 19 18 51 19 30 19 57 05 11 17 31 04 45 05 12 05 51 09 02 13 33 18 46 9.7 9.7 99 0058 0852 >90 WED APR 20 18 52 19 30 19 57 05 59 18 33 04 44 05 11 05 50 09 06 13 37 18 49 9.7 9.7 100 0154 1302 >90 THU APR 21 18 52 19 31 19 58 06 49 19 34 04 43 05 10 05 49 09 11 13 41 18 52 9.7 9.6 99 0250 1622 >90 FRI APR 22 18 52 19 31 19 58 20 34 04 42 05 09 05 49 09 15 13 45 18 55 9.6 8.6 89 0346 1839 >90 SAT APR 23 18 53 19 32 19 59 21 32 04 42 05 09 05 48 09 20 13 49 18 58 9.6 7.6 79 0443 1950 >90 SUN APR 24 18 53 19 32 19 59 22 26 04 41 05 08 05 47 09 24 13 53 19 01 9.6 6.7 69 0538 1953 >90 MON APR 25 18 53 19 32 20 00 23 16 04 40 05 07 05 46 09 28 13 57 19 04 9.6 5.9 61 0631 1854 >90 TUE APR 26 18 54 19 33 20 00 00 02 04 39 05 06 05 46 09 33 14 00 19 07 9.6 5.1 53 0728 1627 >90 WED APR 27 18 54 19 33 20 01 00 44 04 38 05 06 05 45 09 37 14 04 19 11 9.6 4.4 45 0812 1420 84 THU APR 28 18 54 19 34 20 01 01 23 04 37 05 05 05 44 09 42 14 08 19 14 9.5 3.7 38 0859 1107 74 FRI APR 29 18 55 19 34 20 02 02 00 04 37 05 04 05 44 09 46 14 12 19 17 9.5 3.1 32 0945 0726 66 SAT APR 30 18 55 19 35 20 02 02 35 04 36 05 03 05 43 09 50 14 16 19 20 9.5 2.5 26 1030 0326 57 ONE LINE REFERS TO EVENING DATE FULL MOON Apr 07 08:14 UT AND FOLLOWING MORNING. LAST QUARTER Apr 14 18:24 UT All dates and times are zone HST NEW MOON Apr 21 10:27 UT in upper table (except sid time). FIRST QUARTER Apr 28 22:09 UT