Hi,

        I've not actually used RS485 in a star connection although I
        use it all the time as multi-drop.

        At baud rates <4800 i find the terminating resistors    unnecessary,
even when there are many nodes with
        the most cheapest of cable (including just wires!!).

        You cant use a terminating resistor for each connection
simply because the total parallel resistance of each would
        be so small that the RS485 lines would effectively be
        short-circuited.
        You could however experiment and put one terminating    resistor at
the master end only but personally, i'd leave 'em
        out altogether. I almost guarantee you wont have any    problems as
long as you keep the baud rate to say 1200.

Regards,
Darren