KECK OBSERVATORY CALENDAR FOR 2017 -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 2017 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 JUL 01 19 16 19 59 20 29 01 27 04 23 04 53 05 35 14 49 18 21 22 44 7.9 2.9 37 1341-0622 73 SUN JUL 02 19 16 19 59 20 29 02 05 04 23 04 53 05 36 14 53 18 25 22 48 7.9 2.3 29 1428-1005 65 MON JUL 03 19 16 19 59 20 29 14 39 02 45 04 24 04 54 05 36 14 57 18 29 22 53 7.9 1.7 20 1515-1323 58 TUE JUL 04 19 16 19 59 20 29 15 29 03 25 04 24 04 54 05 36 15 01 18 32 22 57 7.9 1.0 12 1603-1609 51 WED JUL 05 19 16 19 59 20 28 16 18 04 09 04 24 04 54 05 37 15 04 18 36 23 01 7.9 0.2 3 1652-1815 46 THU JUL 06 19 16 19 58 20 28 17 08 04 54 04 25 04 55 05 37 15 08 18 40 23 06 7.9 0.0 0 1743-1935 42 FRI JUL 07 19 16 19 58 20 28 17 56 05 42 04 25 04 55 05 37 15 12 18 44 23 10 7.9 0.0 0 1834-2004 40 SAT JUL 08 19 16 19 58 20 28 18 45 06 31 04 26 04 56 05 38 15 16 18 48 23 15 8.0 0.0 0 1926-1939 41 SUN JUL 09 19 16 19 58 20 28 19 32 04 26 04 56 05 38 15 20 18 52 23 19 8.0 0.0 0 2017-1820 43 MON JUL 10 19 16 19 58 20 28 20 17 04 27 04 56 05 39 15 24 18 56 23 24 8.0 0.0 0 2109-1609 49 TUE JUL 11 19 16 19 58 20 28 21 00 04 27 04 57 05 39 15 27 19 00 23 28 8.0 0.5 6 2159-1313 55 WED JUL 12 19 16 19 58 20 27 21 42 04 28 04 57 05 39 15 30 19 04 23 33 8.0 1.2 15 2249-0939 63 THU JUL 13 19 16 19 58 20 27 22 23 04 28 04 58 05 40 15 34 19 08 23 37 8.0 1.9 24 2339-0537 71 FRI JUL 14 19 15 19 57 20 27 23 04 04 29 04 58 05 40 15 38 19 12 23 42 8.0 2.6 32 0029-0113 80 SAT JUL 15 19 15 19 57 20 27 23 46 04 29 04 59 05 40 15 42 19 16 23 46 8.0 3.3 41 0118 0301 90 SUN JUL 16 19 15 19 57 20 26 00 29 04 30 04 59 05 41 15 45 19 20 23 51 8.1 4.1 50 0213 0733 >90 MON JUL 17 19 15 19 57 20 26 01 16 04 30 05 00 05 41 15 49 19 24 23 54 8.1 4.8 59 0307 1134 >90 TUE JUL 18 19 15 19 56 20 26 02 06 14 43 04 31 05 00 05 42 15 53 19 28 23 59 8.1 5.7 70 0405 1456 >90 WED JUL 19 19 14 19 56 20 25 03 01 15 46 04 31 05 00 05 42 15 56 19 32 00 03 8.1 6.6 81 0505 1723 >90 THU JUL 20 19 14 19 56 20 25 04 00 16 50 04 32 05 01 05 42 16 00 19 36 00 08 8.1 7.6 93 0606 1840 >90 FRI JUL 21 19 14 19 55 20 24 05 02 17 52 04 32 05 01 05 43 16 03 19 39 00 12 8.1 8.1 100 0709 1840 >90 SAT JUL 22 19 14 19 55 20 24 06 06 18 52 04 33 05 02 05 43 16 07 19 43 00 17 8.2 8.2 100 0810 1721 >90 SUN JUL 23 19 13 19 55 20 24 19 47 04 33 05 02 05 44 16 11 19 47 00 21 8.2 8.2 100 0909 1454 >90 MON JUL 24 19 13 19 54 20 23 20 37 04 34 05 03 05 44 16 14 19 51 00 26 8.2 7.9 97 1006 1135 >90 TUE JUL 25 19 13 19 54 20 23 21 23 04 34 05 03 05 44 16 18 19 55 00 30 8.2 7.2 87 1059 0741 >90 WED JUL 26 19 12 19 53 20 22 22 05 04 35 05 04 05 45 16 21 19 59 00 35 8.2 6.5 79 1150 0329 >90 THU JUL 27 19 12 19 53 20 21 22 46 04 35 05 04 05 45 16 24 20 03 00 39 8.2 5.8 70 1239-0047 >90 FRI JUL 28 19 11 19 52 20 21 23 25 04 36 05 05 05 46 16 27 20 07 00 44 8.2 5.2 62 1327-0455 >90 SAT JUL 29 19 11 19 52 20 20 00 03 04 37 05 05 05 46 16 30 20 11 00 49 8.3 4.6 55 1419-0818 >90 SUN JUL 30 19 10 19 51 20 20 00 42 04 37 05 06 05 46 16 34 20 15 00 53 8.3 3.9 47 1501-1213 84 MON JUL 31 19 10 19 51 20 19 01 23 04 38 05 06 05 47 16 37 20 19 00 58 8.3 3.2 39 1549-1511 75 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Jul 01 00:52 UT AND FOLLOWING MORNING. FULL MOON Jul 09 04:09 UT All dates and times are zone HST LAST QUARTER Jul 16 19:26 UT in upper table (except sid time). NEW MOON Jul 23 09:46 UT FIRST QUARTER Jul 30 15:24 UT