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By default, only the brightest 100 objects (or closest 100, if the -s p option is used) are returned. Use the -n option to increase this number.
Output is to standard out, unless the -w flag is set, in which case it goes to objectname.sdss or search.sdss.
The SDSS number is the number returned from the SDSS web search. The official SDSS designation for an object is SDSS JHHMMSS.ss+DDMMSS.s, where the coordinates are truncated, not rounded. This format must be used at least once for every object listed in a paper using SDSS data.
When abbreviating the object name in the text please use the "J" to indicate the equinox of the coordinates. For example SDSS J123456.89-012345.6 could be abbreviated as SDSSJ1234 or SDSSJ1234-0123. Please refer to the CDS dictionary on SDSS for further information.
If you want to find the SDSS stars in the area covered by an image with a world coordinate system in its header, try imsdss,
