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 SAT OCT 01 18 21 18 58 19 24 18 59 05 00 05 25 06 03 19 47 00 23 05 24 9.6 0.0 0 0203 1310 25 SUN OCT 02 18 20 18 57 19 23 19 50 05 00 05 26 06 03 19 50 00 27 05 28 9.6 0.5 4 0303 1629 37 MON OCT 03 18 19 18 57 19 22 20 43 05 00 05 26 06 03 19 52 00 31 05 32 9.6 1.4 14 0402 1838 50 TUE OCT 04 18 18 18 56 19 21 21 36 05 00 05 26 06 04 19 55 00 35 05 36 9.6 2.2 23 0501 1935 62 WED OCT 05 18 17 18 55 19 20 22 31 05 01 05 26 06 04 19 58 00 39 05 41 9.7 3.2 32 0557 1922 74 THU OCT 06 18 16 18 54 19 19 23 24 05 01 05 26 06 04 20 01 00 43 05 45 9.7 4.1 42 0650 1806 86 FRI OCT 07 18 16 18 53 19 19 00 17 05 01 05 27 06 04 20 05 00 47 05 49 9.7 5.0 51 0742 1606 >90 SAT OCT 08 18 15 18 52 19 18 01 08 05 01 05 27 06 05 20 08 00 51 05 53 9.7 5.8 60 0831 1322 >90 SUN OCT 09 18 14 18 52 19 17 01 58 14 30 05 02 05 27 06 05 20 11 00 55 05 58 9.8 6.7 68 0918 1007 >90 MON OCT 10 18 13 18 51 19 16 02 47 15 08 05 02 05 27 06 05 20 14 00 59 06 02 9.8 7.5 76 1003 0629 >90 TUE OCT 11 18 12 18 50 19 15 03 35 15 44 05 02 05 28 06 05 20 17 01 03 06 06 9.8 8.3 85 1047 0238 >90 WED OCT 12 18 12 18 49 19 15 04 23 16 20 05 02 05 28 06 06 20 21 01 07 06 10 9.8 9.1 93 1131-0118 >90 THU OCT 13 18 11 18 48 19 14 05 11 16 56 05 03 05 28 06 06 20 24 01 11 06 15 9.8 9.8 100 1215-0513 >90 FRI OCT 14 18 10 18 48 19 13 06 00 17 32 05 03 05 29 06 06 20 27 01 15 06 18 9.8 9.8 100 1300-0858 >90 SAT OCT 15 18 09 18 47 19 12 06 51 18 11 05 03 05 29 06 07 20 30 01 19 06 22 9.8 9.8 100 1347-1224 >90 SUN OCT 16 18 08 18 46 19 12 18 52 05 04 05 29 06 07 20 34 01 23 06 27 9.9 9.9 100 1435-1522 >90 MON OCT 17 18 08 18 46 19 11 19 36 05 04 05 29 06 07 20 37 01 26 06 31 9.9 9.5 95 1525-1742 >90 TUE OCT 18 18 07 18 45 19 10 20 23 05 04 05 30 06 08 20 40 01 30 06 35 9.9 8.7 87 1617-1916 >90 WED OCT 19 18 06 18 44 19 10 21 14 05 04 05 30 06 08 20 44 01 34 06 39 9.9 7.8 79 1711-1954 >90 THU OCT 20 18 06 18 43 19 09 22 07 05 05 05 30 06 08 20 46 01 38 06 44 9.9 7.0 70 1805-1932 >90 FRI OCT 21 18 05 18 43 19 08 23 03 05 05 05 31 06 09 20 49 01 42 06 48 10.0 6.0 60 1901-1805 >90 SAT OCT 22 18 04 18 42 19 08 00 01 05 05 05 31 06 09 20 53 01 46 06 52 10.0 5.1 50 2002-1507 >90 SUN OCT 23 18 04 18 42 19 07 01 00 05 06 05 31 06 09 20 56 01 50 06 57 10.0 4.1 41 2052-1210 80 MON OCT 24 18 03 18 41 19 07 02 00 05 06 05 32 06 10 21 00 01 54 07 01 10.0 3.1 31 2148-0802 67 TUE OCT 25 18 02 18 40 19 06 14 25 03 00 05 06 05 32 06 10 21 03 01 58 07 05 10.0 2.1 21 2243-0316 53 WED OCT 26 18 02 18 40 19 06 15 10 04 01 05 07 05 32 06 10 21 07 02 02 07 10 10.0 1.1 10 2339 0146 39 THU OCT 27 18 01 18 39 19 05 15 57 05 04 05 07 05 33 06 11 21 10 02 06 07 14 10.0 0.1 0 0036 0645 25 FRI OCT 28 18 00 18 39 19 05 16 44 06 07 05 07 05 33 06 11 21 14 02 10 07 18 10.0 0.0 0 0135 1119 12 SAT OCT 29 18 00 18 38 19 04 17 35 05 08 05 33 06 12 21 17 02 14 07 23 10.1 0.0 0 0234 1507 07 SUN OCT 30 17 59 18 38 19 04 18 27 05 08 05 34 06 12 21 21 02 18 07 27 10.1 0.0 0 0335 1752 18 MON OCT 31 17 59 18 37 19 03 19 21 05 08 05 34 06 13 21 24 02 22 07 30 10.1 0.3 2 0435 1923 31 ONE LINE REFERS TO EVENING DATE LAST QUARTER Oct 07 16:31 UT AND FOLLOWING MORNING. NEW MOON Oct 15 20:49 UT All dates and times are zone HST FIRST QUARTER Oct 23 12:10 UT in upper table (except sid time). FULL MOON Oct 30 03:17 UT