A planet or point is stationary only instantaneously i.e. not for any finite length of time. Hence, in normal usage, a point referred to as being stationary in a chart actually means that it is near a station, rather than truly being stationary.
There are a number of possible ways of defining the criteria for how near a point must be to a station in order to be considered "stationary", and Solar Fire offers four such options, from which the user may select one.
•Within this timespan of exactness - the user may specify the number of days and/or hours, within which the point is considered stationary
•Within this distance of exactness - the user may specify the orb as a distance in longitude (celestial), within which the point is considered stationary
•When actual speed is less than - the user may specify a daily rate of motion (in zodiacal longitude per day), below which the point is considered stationary
•When speed relative to average is less than - the user may specify a percentage of the typical speed, below which the point is considered stationary
In the "Preferences" dialog, "Stations" tab...
>> To shows stations on chart wheels
•Ensure that the Show Stations with "S" option is checked.
When this option is switched on, any chart which normally has space to display a retrograde symbol will display an "S" in that space if that point is within orb of a station according to the option selected above. If colors are enabled in the chart, then a stationary point which is retrograde will have the "S" shown in the retrograde color, or if the point is direct then in normal text color.