KECK OBSERVATORY CALENDAR FOR 2028 -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 2028 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 TUE AUG 01 19 09 19 50 20 18 16 21 03 50 04 39 05 07 05 47 16 42 20 24 01 04 8.4 0.8 9 1832-2517 53 WED AUG 02 19 09 19 49 20 17 17 09 04 45 04 39 05 07 05 48 16 45 20 28 01 08 8.4 0.0 0 1926-2254 45 THU AUG 03 19 08 19 48 20 17 17 53 05 39 04 40 05 08 05 48 16 48 20 32 01 13 8.4 0.0 0 2017-1928 39 FRI AUG 04 19 07 19 48 20 16 18 32 06 30 04 40 05 08 05 48 16 51 20 36 01 17 8.4 0.0 0 2105-1516 36 SAT AUG 05 19 07 19 47 20 15 19 08 04 41 05 09 05 49 16 54 20 40 01 22 8.4 0.0 0 2151-1031 35 SUN AUG 06 19 06 19 46 20 14 19 41 04 41 05 09 05 49 16 57 20 44 01 26 8.4 0.0 0 2236-0526 37 MON AUG 07 19 06 19 46 20 14 20 14 04 42 05 09 05 50 17 01 20 48 01 31 8.5 0.0 0 2319-0013 42 TUE AUG 08 19 05 19 45 20 13 20 46 04 42 05 10 05 50 17 04 20 52 01 35 8.5 0.5 6 2402 0458 49 WED AUG 09 19 05 19 44 20 12 21 18 04 43 05 10 05 50 17 07 20 56 01 39 8.5 1.1 12 0046 0958 56 THU AUG 10 19 04 19 44 20 11 21 53 04 43 05 11 05 51 17 10 21 00 01 43 8.5 1.7 19 0131 1435 65 FRI AUG 11 19 03 19 43 20 11 22 30 04 44 05 11 05 51 17 14 21 04 01 48 8.6 2.3 27 0219 1840 74 SAT AUG 12 19 03 19 42 20 10 23 12 04 44 05 12 05 51 17 17 21 08 01 52 8.6 3.0 35 0310 2157 83 SUN AUG 13 19 02 19 41 20 09 00 00 04 44 05 12 05 51 17 20 21 11 01 56 8.6 3.9 44 0404 2419 >90 MON AUG 14 19 01 19 41 20 08 00 53 14 10 04 45 05 12 05 52 17 23 21 15 02 01 8.6 4.8 55 0501 2523 >90 TUE AUG 15 19 01 19 40 20 07 01 52 15 08 04 45 05 13 05 52 17 26 21 19 02 05 8.6 5.7 66 0601 2500 >90 WED AUG 16 19 00 19 39 20 06 02 56 16 04 04 46 05 13 05 52 17 29 21 23 02 10 8.7 6.8 78 0701 2303 >90 THU AUG 17 18 59 19 38 20 06 04 01 16 57 04 46 05 13 05 53 17 33 21 27 02 14 8.7 7.9 91 0800 1937 >90 FRI AUG 18 18 58 19 37 20 05 05 07 17 47 04 47 05 14 05 53 17 36 21 31 02 19 8.7 8.7 100 0858 1452 >90 SAT AUG 19 18 58 19 37 20 04 06 12 18 33 04 47 05 14 05 53 17 38 21 35 02 23 8.7 8.7 100 0954 0907 >90 SUN AUG 20 18 57 19 36 20 03 19 16 04 48 05 15 05 54 17 41 21 39 02 28 8.8 8.8 100 1049 0248 >90 MON AUG 21 18 56 19 35 20 02 19 59 04 48 05 15 05 54 17 44 21 43 02 32 8.8 8.8 100 1143-0342 >90 TUE AUG 22 18 55 19 34 20 01 20 41 04 48 05 15 05 54 17 47 21 47 02 36 8.8 8.1 92 1237-0956 >90 WED AUG 23 18 54 19 33 20 00 21 25 04 49 05 16 05 54 17 50 21 51 02 41 8.8 7.4 83 1331-1533 >90 THU AUG 24 18 54 19 32 19 59 22 12 04 49 05 16 05 55 17 53 21 55 02 45 8.8 6.6 74 1427-2011 >90 FRI AUG 25 18 53 19 32 19 58 23 02 04 49 05 16 05 55 17 56 21 59 02 49 8.8 5.8 65 1525-2336 >90 SAT AUG 26 18 52 19 31 19 57 23 55 04 50 05 16 05 55 17 59 22 03 02 54 8.9 4.9 55 1623-2538 >90 SUN AUG 27 18 51 19 30 19 56 00 50 04 50 05 17 05 55 18 02 22 07 02 57 8.9 4.0 44 1721-2610 83 MON AUG 28 18 50 19 29 19 55 14 18 01 45 04 51 05 17 05 56 18 05 22 11 03 02 8.9 3.1 34 1817-2527 73 TUE AUG 29 18 50 19 28 19 54 15 07 02 41 04 51 05 17 05 56 18 08 22 15 03 06 9.0 2.2 24 1911-2324 62 WED AUG 30 18 49 19 27 19 53 15 52 03 34 04 51 05 18 05 56 18 11 22 19 03 10 9.0 1.3 14 2003-2017 52 THU AUG 31 18 48 19 26 19 53 16 32 04 26 04 52 05 18 05 56 18 15 22 22 03 15 9.0 0.4 4 2052-1620 42 ONE LINE REFERS TO EVENING DATE FULL MOON Aug 05 08:08 UT AND FOLLOWING MORNING. LAST QUARTER Aug 13 11:46 UT All dates and times are zone HST NEW MOON Aug 20 10:43 UT in upper table (except sid time). FIRST QUARTER Aug 27 01:35 UT