KECK OBSERVATORY CALENDAR FOR 2018 -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 2018 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 MON OCT 01 18 21 18 58 19 24 23 34 05 00 05 25 06 03 19 20 00 22 05 48 10.4 4.6 44 0642 2036 88 TUE OCT 02 18 20 18 57 19 23 00 34 05 00 05 26 06 03 19 23 00 26 05 53 10.5 5.6 53 0744 2008 >90 WED OCT 03 18 19 18 57 19 22 01 36 14 27 05 00 05 26 06 03 19 26 00 30 05 57 10.5 6.6 63 0844 1816 >90 THU OCT 04 18 18 18 56 19 21 02 39 15 20 05 00 05 26 06 04 19 29 00 34 06 01 10.5 7.7 73 0942 1513 >90 FRI OCT 05 18 17 18 55 19 20 03 41 16 10 05 01 05 26 06 04 19 32 00 38 06 05 10.5 8.8 83 1039 1115 >90 SAT OCT 06 18 16 18 54 19 19 04 42 16 57 05 01 05 26 06 04 19 35 00 42 06 09 10.5 9.8 93 1133 0637 >90 SUN OCT 07 18 16 18 53 19 19 05 41 17 41 05 01 05 27 06 04 19 38 00 46 06 14 10.6 10.6 100 1227 0139 >90 MON OCT 08 18 15 18 52 19 18 06 39 18 24 05 01 05 27 06 05 19 41 00 50 06 18 10.6 10.6 100 1319-0321 >90 TUE OCT 09 18 14 18 52 19 17 19 07 05 02 05 27 06 05 19 45 00 54 06 22 10.6 10.3 97 1410-0806 >90 WED OCT 10 18 13 18 51 19 16 19 50 05 02 05 27 06 05 19 48 00 58 06 26 10.6 9.6 90 1502-1221 >90 THU OCT 11 18 12 18 50 19 15 20 34 05 02 05 28 06 05 19 51 01 02 06 31 10.6 8.9 83 1553-1556 >90 FRI OCT 12 18 12 18 49 19 15 21 19 05 02 05 28 06 06 19 54 01 06 06 35 10.6 8.1 76 1645-1840 >90 SAT OCT 13 18 11 18 48 19 14 22 06 05 03 05 28 06 06 19 57 01 10 06 39 10.7 7.4 69 1736-2030 >90 SUN OCT 14 18 10 18 48 19 13 22 54 05 03 05 29 06 06 20 01 01 14 06 44 10.7 6.6 61 1828-2121 >90 MON OCT 15 18 09 18 47 19 12 23 43 05 03 05 29 06 07 20 04 01 18 06 47 10.7 5.8 53 1919-2114 >90 TUE OCT 16 18 08 18 46 19 12 00 33 05 04 05 29 06 07 20 07 01 22 06 51 10.7 4.9 46 2011-2006 86 WED OCT 17 18 08 18 46 19 11 01 24 05 04 05 29 06 07 20 11 01 25 06 55 10.7 4.1 38 2100-1813 76 THU OCT 18 18 07 18 45 19 10 14 18 02 14 05 04 05 30 06 08 20 14 01 29 07 00 10.8 3.3 30 2148-1533 65 FRI OCT 19 18 06 18 44 19 10 14 58 03 04 05 04 05 30 06 08 20 16 01 33 07 04 10.8 2.4 22 2236-1207 54 SAT OCT 20 18 06 18 43 19 09 15 37 03 55 05 05 05 30 06 08 20 19 01 37 07 08 10.8 1.6 14 2324-0808 43 SUN OCT 21 18 05 18 43 19 08 16 14 04 46 05 05 05 31 06 09 20 23 01 41 07 13 10.8 0.8 6 0011-0343 32 MON OCT 22 18 04 18 42 19 08 16 52 05 38 05 05 05 31 06 09 20 26 01 45 07 17 10.8 0.0 0 0100 0057 22 TUE OCT 23 18 04 18 42 19 07 17 31 06 32 05 06 05 31 06 09 20 30 01 49 07 21 10.8 0.0 0 0149 0541 14 WED OCT 24 18 03 18 41 19 07 18 12 05 06 05 32 06 10 20 33 01 53 07 26 10.9 0.0 0 0241 1014 15 THU OCT 25 18 02 18 40 19 06 18 55 05 06 05 32 06 10 20 36 01 57 07 30 10.9 0.2 2 0335 1419 24 FRI OCT 26 18 02 18 40 19 06 19 42 05 07 05 32 06 10 20 40 02 01 07 34 10.9 1.0 9 0431 1739 36 SAT OCT 27 18 01 18 39 19 05 20 34 05 07 05 33 06 11 20 43 02 05 07 39 10.9 1.9 17 0530 1958 48 SUN OCT 28 18 00 18 39 19 05 21 29 05 07 05 33 06 11 20 47 02 09 07 43 10.9 2.8 25 0630 2102 61 MON OCT 29 18 00 18 38 19 04 22 28 05 08 05 33 06 12 20 50 02 13 07 47 10.9 3.8 35 0730 2045 74 TUE OCT 30 17 59 18 38 19 04 23 29 05 08 05 34 06 12 20 54 02 17 07 52 10.9 4.9 44 0830 1906 87 WED OCT 31 17 59 18 37 19 03 00 31 05 08 05 34 06 13 20 57 02 21 07 56 10.9 5.9 53 0929 1625 >90 ONE LINE REFERS TO EVENING DATE LAST QUARTER Oct 02 09:46 UT AND FOLLOWING MORNING. NEW MOON Oct 09 03:47 UT All dates and times are zone HST FIRST QUARTER Oct 16 18:03 UT in upper table (except sid time). FULL MOON Oct 24 16:44 UT LAST QUARTER Oct 31 16:41 UT