source: buchla-68k/orig/DATE/SUN.txt@ 6888aa2

     SSSSUUUUNNNN((((1111))))                UUUUNNNNIIIIXXXX 5555....0000 ((((9999 MMMMaaaayyyy 1111999988885555))))                SSSSUUUUNNNN((((1111))))



     NNNNAAAAMMMMEEEE
          sun - calculate sunrise and sunset times

     SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
          ssssuuuunnnn [ ----pppp ] [ ----tttt _h:_m:_s ] [ ----dddd _m/_d/_y ] [ ----aaaa _l_a_t ] [ ----oooo _l_o_n ]
           [ ----zzzz _t_z ]

     DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
          _S_u_n Calculates the times of sunrise and sunset for the
          current system date.  Optionally, _s_u_n calculates the current
          position of the sun and its position at sunrise and sunset
          for other dates, times and places.

          The command line options are:

          ----pppp   Show current altitude and azimuth for the sun and its
               azimuth at sunrise and sunset.

          ----tttt _h:_m:_s
               Use _h:_m:_s as local hours (24 hour clock), minutes and
               seconds as the time instead of the current system time.

          ----dddd _m/_d/_y
               Use _m/_d/_y as the month, day and year instead of the
               current system date.

          ----aaaa _l_a_t
               Use _l_a_t as the latitude of the observer, instead of the
               system latitude.  The latitude is specified in decimal
               degrees north.  For example, use 45.5333 for Beaverton,
               Oregon.

          ----oooo _l_o_n
               Use _l_o_n as the longitude of the observer, instead of
               the system longitude.  The longitude is specified in
               decimal degrees west.  For example, use 122.8333 for
               Beaverton, Oregon.

          ----zzzz _t_z
               Use _t_z as the time zone of the observer, instead of the
               current system timezone.  Timezone is specified as a
               positive number for locations west of Greenwich.  For
               example, use 8 for Pacific Standard Time.

     AAAAUUUUTTTTHHHHOOOORRRR
          Robert Bond

     BBBBUUUUGGGGSSSS
          Should figure out timezone and guess at longitude from the
          system time. Timezone, latitude and longitude are compiled
          in.




     Page 1                                          (printed 5/15/85)