KECK OBSERVATORY CALENDAR FOR 2050 -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 2050 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 AUG 01 19 10 19 50 20 19 17 44 05 46 04 38 05 06 05 47 16 41 20 23 01 02 8.3 0.0 0 2007-1551 36 TUE AUG 02 19 09 19 50 20 18 18 36 06 50 04 39 05 07 05 47 16 44 20 27 01 07 8.4 0.0 0 2108-1149 33 WED AUG 03 19 09 19 49 20 17 19 25 04 39 05 07 05 48 16 47 20 31 01 11 8.4 0.0 0 2206-0701 36 THU AUG 04 19 08 19 48 20 17 20 13 04 40 05 08 05 48 16 51 20 35 01 15 8.4 0.0 0 2304-0149 43 FRI AUG 05 19 07 19 48 20 16 20 59 04 40 05 08 05 48 16 54 20 39 01 19 8.4 0.7 8 2400 0323 52 SAT AUG 06 19 07 19 47 20 15 21 44 04 41 05 09 05 49 16 57 20 43 01 24 8.4 1.5 17 0056 0814 62 SUN AUG 07 19 06 19 46 20 14 22 30 04 41 05 09 05 49 17 00 20 47 01 28 8.4 2.3 26 0152 1226 73 MON AUG 08 19 06 19 46 20 14 23 18 04 42 05 09 05 50 17 04 20 50 01 33 8.5 3.1 36 0247 1546 84 TUE AUG 09 19 05 19 45 20 13 00 07 04 42 05 10 05 50 17 07 20 54 01 37 8.5 3.9 45 0343 1811 >90 WED AUG 10 19 05 19 44 20 12 00 57 04 43 05 10 05 50 17 10 20 58 01 42 8.5 4.7 55 0438 1930 >90 THU AUG 11 19 04 19 44 20 11 01 49 14 48 04 43 05 11 05 51 17 13 21 02 01 46 8.5 5.6 66 0532 1946 >90 FRI AUG 12 19 03 19 43 20 11 02 42 15 39 04 44 05 11 05 51 17 17 21 06 01 51 8.6 6.5 76 0625 1901 >90 SAT AUG 13 19 03 19 42 20 10 03 34 16 26 04 44 05 12 05 51 17 20 21 10 01 55 8.6 7.4 86 0716 1722 >90 SUN AUG 14 19 02 19 41 20 09 04 26 17 11 04 44 05 12 05 51 17 22 21 14 01 59 8.6 8.3 96 0805 1457 >90 MON AUG 15 19 01 19 41 20 08 05 16 17 52 04 45 05 12 05 52 17 25 21 18 02 04 8.6 8.6 100 0852 1155 >90 TUE AUG 16 19 01 19 40 20 07 06 05 18 30 04 45 05 13 05 52 17 28 21 22 02 08 8.6 8.6 100 0938 0825 >90 WED AUG 17 19 00 19 39 20 06 06 54 19 07 04 46 05 13 05 52 17 31 21 26 02 13 8.7 8.7 100 1023 0437 >90 THU AUG 18 18 59 19 38 20 05 19 43 04 46 05 13 05 53 17 34 21 30 02 17 8.7 8.7 100 1106 0040 >90 FRI AUG 19 18 58 19 37 20 05 20 18 04 47 05 14 05 53 17 38 21 34 02 22 8.7 8.5 97 1150-0321 >90 SAT AUG 20 18 58 19 37 20 04 20 54 04 47 05 14 05 53 17 41 21 38 02 26 8.7 7.9 90 1235-0715 >90 SUN AUG 21 18 57 19 36 20 03 21 31 04 48 05 15 05 54 17 44 21 42 02 31 8.8 7.3 83 1320-1057 >90 MON AUG 22 18 56 19 35 20 02 22 11 04 48 05 15 05 54 17 47 21 46 02 34 8.8 6.6 75 1407-1416 >90 TUE AUG 23 18 55 19 34 20 01 22 53 04 48 05 15 05 54 17 50 21 50 02 38 8.8 5.9 67 1457-1703 >90 WED AUG 24 18 54 19 33 20 00 23 40 04 49 05 16 05 54 17 53 21 54 02 43 8.8 5.2 58 1549-1908 >90 THU AUG 25 18 54 19 32 19 59 00 30 04 49 05 16 05 55 17 56 21 57 02 47 8.8 4.3 48 1644-2014 87 FRI AUG 26 18 53 19 32 19 58 01 25 04 49 05 16 05 55 17 59 22 01 02 51 8.8 3.4 38 1741-2025 76 SAT AUG 27 18 52 19 31 19 57 14 34 02 24 04 50 05 16 05 55 18 02 22 05 02 56 8.9 2.4 27 1839-1924 64 SUN AUG 28 18 51 19 30 19 56 15 28 03 25 04 50 05 17 05 55 18 05 22 09 03 00 8.9 1.4 15 1939-1706 52 MON AUG 29 18 50 19 29 19 55 16 21 04 29 04 51 05 17 05 56 18 08 22 13 03 05 8.9 0.4 4 2039-1339 41 TUE AUG 30 18 50 19 28 19 54 17 11 05 33 04 51 05 17 05 56 18 11 22 17 03 09 9.0 0.0 0 2139-0914 31 WED AUG 31 18 49 19 27 19 53 18 00 06 36 04 51 05 18 05 56 18 13 22 21 03 13 9.0 0.0 0 2237-0410 24 ONE LINE REFERS TO EVENING DATE FULL MOON Aug 03 02:19 UT AND FOLLOWING MORNING. LAST QUARTER Aug 09 16:48 UT All dates and times are zone HST NEW MOON Aug 17 11:45 UT in upper table (except sid time). FIRST QUARTER Aug 25 14:56 UT