LICK OBSERVATORY CALENDAR FOR 1998  -ASTRONOMICAL
                                 (computed for altitude 1283.0 m)
                                                                    ASTRONOMICAL(18 deg) TWILIGHT/DAWN    MOON
  DATE(PST)   SUN   TWILIGHT ENDS  MOON   MOON   DAWN BEGINS   SUN     SIDEREAL TIMES    NIGHT (18 deg)  RA DEC
    1998      SET                  RISE   SET                  RISE   TWI    MID   DAWN  LENGTH DARK___ 
                      12     18                   18     12            18            18     h    h    %  midnight
 SUN FEB 01  17 37  18 29  19 00         23 04  05 40  06 11  07 03  03 42  08 43  14 24  10.7  6.6  61 0126+0521
 MON FEB 02  17 38  18 30  19 01         00 11  05 40  06 10  07 02  03 47  08 47  14 28  10.7  5.5  51 0221+0930
 TUE FEB 03  17 39  18 31  19 02         01 16  05 39  06 10  07 01  03 52  08 51  14 30  10.6  4.4  41 0316+1302
 WED FEB 04  17 40  18 32  19 02         02 19  05 38  06 09  07 00  03 56  08 55  14 33  10.6  3.3  31 0411+1548
 THU FEB 05  17 42  18 33  19 03         03 19  05 37  06 08  06 59  04 01  08 58  14 36  10.6  2.3  21 0506+1738
 FRI FEB 06  17 43  18 34  19 04         04 15  05 37  06 07  06 58  04 06  09 02  14 40  10.5  1.4  12 0602+1830
 SAT FEB 07  17 44  18 35  19 05         05 07  05 36  06 06  06 57  04 11  09 06  14 43  10.5  0.5   4 0657+1821
 SUN FEB 08  17 45  18 36  19 06         05 53  05 35  06 05  06 56  04 15  09 10  14 46  10.5  0.0   0 0750+1716
 MON FEB 09  17 46  18 37  19 07  16 16  06 34  05 34  06 04  06 55  04 20  09 14  14 49  10.4  0.0   0 0842+1521
 TUE FEB 10  17 47  18 38  19 08  17 13  07 11  05 33  06 04  06 54  04 25  09 18  14 52  10.4  0.0   0 0932+1245
 WED FEB 11  17 48  18 39  19 09  18 10  07 46  05 32  06 03  06 53  04 30  09 22  14 55  10.4  0.0   0 1020+0938
 THU FEB 12  17 49  18 40  19 10  19 06         05 31  06 02  06 52  04 35  09 26  14 58  10.4  0.0   0 1107+0609
 FRI FEB 13  17 50  18 41  19 11  20 01         05 30  06 01  06 51  04 40  09 30  15 01  10.3  0.8   8 1152+0227
 SAT FEB 14  17 51  18 42  19 12  20 55         05 29  05 59  06 50  04 45  09 34  15 04  10.3  1.7  16 1237-0118
 SUN FEB 15  17 52  18 43  19 13  21 50         05 28  05 58  06 49  04 50  09 38  15 07  10.2  2.6  25 1322-0500
 MON FEB 16  17 53  18 44  19 14  22 44         05 27  05 57  06 48  04 55  09 42  15 10  10.2  3.5  34 1408-0831
 TUE FEB 17  17 54  18 45  19 15  23 39         05 26  05 56  06 46  05 00  09 46  15 13  10.2  4.4  43 1455-1143
 WED FEB 18  17 55  18 46  19 16  00 34         05 25  05 55  06 45  05 05  09 50  15 16  10.2  5.3  52 1543-1427
 THU FEB 19  17 56  18 47  19 17  01 30         05 24  05 54  06 44  05 10  09 54  15 19  10.1  6.2  61 1633-1636
 FRI FEB 20  17 57  18 48  19 18  02 26         05 23  05 53  06 43  05 15  09 58  15 21  10.1  7.1  70 1726-1801
 SAT FEB 21  17 58  18 49  19 19  03 21         05 21  05 52  06 42  05 20  10 02  15 23  10.0  8.0  80 1821-1831
 SUN FEB 22  17 59  18 49  19 20  04 14         05 20  05 50  06 40  05 25  10 05  15 26  10.0  8.9  88 1919-1759
 MON FEB 23  18 00  18 50  19 21  05 04         05 19  05 49  06 39  05 30  10 09  15 29  10.0  9.7  97 2017-1622
 TUE FEB 24  18 01  18 51  19 22  05 51  16 05  05 18  05 48  06 38  05 35  10 13  15 32   9.9  9.9 100 2116-1340
 WED FEB 25  18 02  18 52  19 23  06 35  17 14  05 16  05 47  06 36  05 40  10 17  15 34   9.9  9.9 100 2215-1001
 THU FEB 26  18 03  18 53  19 24  07 16  18 25  05 15  05 45  06 35  05 44  10 21  15 37   9.9  9.9 100 2313-0541
 FRI FEB 27  18 04  18 54  19 24  07 56  19 36  05 14  05 44  06 34  05 48  10 25  15 40   9.8  9.6  97 0010-0058
 SAT FEB 28  18 05  18 55  19 25         20 47  05 13  05 43  06 32  05 53  10 29  15 43   9.8  8.4  86 0107+0346

                ONE LINE REFERS TO EVENING DATE    FIRST QUARTER  FEB 03   22:57  UT
                AND FOLLOWING MORNING.             FULL MOON      FEB 11   10:26  UT
                All dates and times are zone PST   LAST QUARTER   FEB 19   15:31  UT
                in upper table (except sid time).  NEW MOON       FEB 26   17:27  UT