KECK OBSERVATORY CALENDAR FOR 2005  -ASTRONOMICAL
                                 (computed for altitude 4145.0 m)
                                                                    ASTRONOMICAL(18 deg) TWILIGHT/DAWN    MOON
  DATE(HST)   SUN   TWILIGHT ENDS  MOON   MOON   DAWN BEGINS   SUN     SIDEREAL TIMES    NIGHT (18 deg)  RA DEC
    2005      SET                  RISE   SET                  RISE   TWI    MID   DAWN  LENGTH DARK___ 
                      12     18                   18     12            18            18     h    h    %  midnight
 MON AUG 01  19 10  19 50  20 18  03 38  17 07  04 38  05 06  05 47  16 40  20 23  01 01   8.3  7.3  88 0652+2756
 TUE AUG 02  19 09  19 50  20 18  04 32  17 56  04 39  05 07  05 47  16 44  20 26  01 06   8.4  8.2  98 0745+2619
 WED AUG 03  19 09  19 49  20 17  05 26  18 40  04 39  05 07  05 48  16 47  20 30  01 10   8.4  8.4 100 0835+2332
 THU AUG 04  19 08  19 48  20 16  06 19  19 20  04 40  05 08  05 48  16 50  20 34  01 15   8.4  8.4 100 0924+1947
 FRI AUG 05  19 07  19 48  20 16  07 10  19 56  04 40  05 08  05 48  16 54  20 38  01 19   8.4  8.4 100 1009+1514
 SAT AUG 06  19 07  19 47  20 15  07 59  20 29  04 41  05 09  05 49  16 57  20 42  01 24   8.4  8.2  97 1053+1007
 SUN AUG 07  19 06  19 46  20 14         21 01  04 41  05 09  05 49  17 00  20 46  01 28   8.4  7.7  90 1136+0435
 MON AUG 08  19 06  19 46  20 14         21 32  04 42  05 09  05 49  17 03  20 50  01 33   8.5  7.2  84 1219-0108
 TUE AUG 09  19 05  19 45  20 13         22 04  04 42  05 10  05 50  17 06  20 54  01 37   8.5  6.6  78 1303-0655
 WED AUG 10  19 04  19 44  20 12         22 37  04 43  05 10  05 50  17 09  20 58  01 42   8.5  6.1  71 1348-1233
 THU AUG 11  19 04  19 44  20 11         23 14  04 43  05 11  05 50  17 12  21 02  01 46   8.5  5.5  64 1437-1749
 FRI AUG 12  19 03  19 43  20 11         23 56  04 44  05 11  05 51  17 16  21 06  01 51   8.6  4.8  56 1529-2223
 SAT AUG 13  19 03  19 42  20 10         00 45  04 44  05 12  05 51  17 19  21 10  01 55   8.6  4.0  46 1627-2556
 SUN AUG 14  19 02  19 41  20 09         01 42  04 44  05 12  05 51  17 22  21 14  01 59   8.6  3.0  35 1729-2801
 MON AUG 15  19 01  19 41  20 08         02 46  04 45  05 12  05 52  17 25  21 18  02 03   8.6  2.0  23 1835-2816
 TUE AUG 16  19 00  19 40  20 07  16 28  03 54  04 45  05 13  05 52  17 28  21 22  02 07   8.6  0.8   9 1941-2631
 WED AUG 17  19 00  19 39  20 06  17 27  05 04  04 46  05 13  05 52  17 31  21 26  02 12   8.7  0.0   0 2046-2251
 THU AUG 18  18 59  19 38  20 05  18 19  06 12  04 46  05 13  05 53  17 34  21 30  02 16   8.7  0.0   0 2147-1737
 FRI AUG 19  18 58  19 37  20 05  19 06  07 17  04 47  05 14  05 53  17 38  21 33  02 21   8.7  0.0   0 2244-1118
 SAT AUG 20  18 58  19 37  20 04  19 48         04 47  05 14  05 53  17 41  21 37  02 25   8.7  0.0   0 2338-0425
 SUN AUG 21  18 57  19 36  20 03  20 27         04 47  05 14  05 54  17 44  21 41  02 29   8.7  0.4   4 0029+0232
 MON AUG 22  18 56  19 35  20 02  21 05         04 48  05 15  05 54  17 47  21 45  02 34   8.8  1.1  11 0120+0911
 TUE AUG 23  18 55  19 34  20 01  21 43         04 48  05 15  05 54  17 50  21 49  02 38   8.8  1.7  19 0210+1510
 WED AUG 24  18 54  19 33  20 00  22 23         04 49  05 15  05 54  17 53  21 53  02 43   8.8  2.4  27 0302+2016
 THU AUG 25  18 54  19 32  19 59  23 05         04 49  05 16  05 55  17 55  21 57  02 47   8.8  3.1  35 0355+2414
 FRI AUG 26  18 53  19 32  19 58  23 51         04 49  05 16  05 55  17 58  22 01  02 51   8.8  3.9  43 0449+2657
 SAT AUG 27  18 52  19 31  19 57  00 40         04 50  05 16  05 55  18 01  22 05  02 56   8.9  4.7  53 0544+2818
 SUN AUG 28  18 51  19 30  19 56  01 33         04 50  05 17  05 55  18 04  22 09  03 00   8.9  5.6  63 0638+2817
 MON AUG 29  18 50  19 29  19 55  02 27         04 51  05 17  05 56  18 07  22 13  03 05   8.9  6.5  73 0732+2657
 TUE AUG 30  18 49  19 28  19 54  03 21  16 39  04 51  05 17  05 56  18 10  22 17  03 09   9.0  7.5  83 0823+2425
 WED AUG 31  18 49  19 27  19 53  04 14  17 20  04 51  05 18  05 56  18 13  22 21  03 13   9.0  8.3  93 0912+2051

                ONE LINE REFERS TO EVENING DATE    NEW MOON       AUG 05   03:08  UT
                AND FOLLOWING MORNING.             FIRST QUARTER  AUG 13   02:42  UT
                All dates and times are zone HST   FULL MOON      AUG 19   17:57  UT
                in upper table (except sid time).  LAST QUARTER   AUG 26   15:21  UT