KECK OBSERVATORY CALENDAR FOR 2041 -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 2041 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 OCT 01 18 21 18 58 19 24 23 03 05 00 05 25 06 03 19 47 00 24 05 25 9.6 6.0 61 1758-2755 >90 WED OCT 02 18 20 18 57 19 23 00 02 05 00 05 26 06 03 19 50 00 28 05 29 9.6 5.0 51 1905-2720 >90 THU OCT 03 18 19 18 57 19 22 01 06 05 00 05 26 06 03 19 53 00 32 05 33 9.6 3.9 40 2001-2604 80 FRI OCT 04 18 18 18 56 19 21 14 33 02 11 05 00 05 26 06 04 19 56 00 36 05 37 9.6 2.8 29 2102-2240 67 SAT OCT 05 18 17 18 55 19 20 15 23 03 15 05 01 05 26 06 04 19 59 00 40 05 42 9.7 1.8 18 2201-1743 54 SUN OCT 06 18 16 18 54 19 19 16 08 04 19 05 01 05 26 06 04 20 02 00 44 05 46 9.7 0.7 7 2258-1136 41 MON OCT 07 18 16 18 53 19 19 16 50 05 22 05 01 05 27 06 04 20 06 00 48 05 50 9.7 0.0 0 2353-0446 28 TUE OCT 08 18 15 18 52 19 18 17 31 06 24 05 01 05 27 06 05 20 09 00 52 05 54 9.7 0.0 0 0047 0221 18 WED OCT 09 18 14 18 52 19 17 18 11 05 02 05 27 06 05 20 12 00 56 05 58 9.8 0.0 0 0141 0916 15 THU OCT 10 18 13 18 51 19 16 18 53 05 02 05 27 06 05 20 15 01 00 06 02 9.8 0.0 0 0236 1533 23 FRI OCT 11 18 12 18 50 19 15 19 37 05 02 05 28 06 05 20 18 01 04 06 06 9.8 0.4 3 0333 2046 35 SAT OCT 12 18 12 18 49 19 15 20 25 05 02 05 28 06 06 20 22 01 07 06 10 9.8 1.2 11 0432 2438 47 SUN OCT 13 18 11 18 48 19 14 21 16 05 03 05 28 06 06 20 25 01 11 06 15 9.8 2.0 20 0531 2656 59 MON OCT 14 18 10 18 48 19 13 22 11 05 03 05 29 06 06 20 28 01 15 06 19 9.8 3.0 30 0629 2739 71 TUE OCT 15 18 09 18 47 19 12 23 06 05 03 05 29 06 07 20 30 01 19 06 23 9.8 3.9 39 0725 2651 83 WED OCT 16 18 08 18 46 19 12 00 02 05 04 05 29 06 07 20 34 01 23 06 28 9.9 4.8 48 0819 2448 >90 THU OCT 17 18 08 18 46 19 11 00 57 14 06 05 04 05 29 06 07 20 37 01 27 06 32 9.9 5.8 58 0910 2138 >90 FRI OCT 18 18 07 18 45 19 10 01 49 14 46 05 04 05 30 06 08 20 40 01 31 06 36 9.9 6.7 67 0957 1738 >90 SAT OCT 19 18 06 18 44 19 10 02 39 15 22 05 04 05 30 06 08 20 44 01 35 06 40 9.9 7.5 75 1042 1300 >90 SUN OCT 20 18 06 18 43 19 09 03 28 15 55 05 05 05 30 06 08 20 47 01 39 06 45 9.9 8.3 83 1124 0754 >90 MON OCT 21 18 05 18 43 19 08 04 16 16 26 05 05 05 31 06 09 20 50 01 43 06 49 10.0 9.1 91 1206 0231 >90 TUE OCT 22 18 04 18 42 19 08 05 05 16 57 05 05 05 31 06 09 20 54 01 47 06 53 10.0 10.0 100 1248-0301 >90 WED OCT 23 18 04 18 42 19 07 05 54 17 29 05 06 05 31 06 09 20 57 01 51 06 58 10.0 10.0 100 1331-0830 >90 THU OCT 24 18 03 18 41 19 07 06 45 18 02 05 06 05 32 06 10 21 01 01 55 07 02 10.0 10.0 100 1416-1346 >90 FRI OCT 25 18 02 18 40 19 06 18 39 05 06 05 32 06 10 21 04 01 59 07 06 10.0 10.0 100 1503-1834 >90 SAT OCT 26 18 02 18 40 19 06 19 20 05 07 05 32 06 10 21 08 02 03 07 10 10.0 9.8 97 1554-2240 >90 SUN OCT 27 18 01 18 39 19 05 20 06 05 07 05 33 06 11 21 11 02 07 07 14 10.0 9.0 89 1648-2546 >90 MON OCT 28 18 00 18 39 19 05 20 58 05 07 05 33 06 11 21 15 02 11 07 18 10.0 8.1 81 1745-2735 >90 TUE OCT 29 18 00 18 38 19 04 21 56 05 08 05 33 06 12 21 18 02 14 07 23 10.1 7.2 71 1845-2753 >90 WED OCT 30 17 59 18 38 19 04 22 57 05 08 05 34 06 12 21 22 02 18 07 27 10.1 6.2 61 1945-2634 >90 THU OCT 31 17 59 18 37 19 03 00 00 05 08 05 34 06 13 21 25 02 22 07 31 10.1 5.1 50 2051-2308 >90 ONE LINE REFERS TO EVENING DATE FIRST QUARTER Oct 03 03:32 UT AND FOLLOWING MORNING. FULL MOON Oct 09 18:04 UT All dates and times are zone HST LAST QUARTER Oct 16 21:05 UT in upper table (except sid time). NEW MOON Oct 25 01:30 UT