Objects in a solar system

What types of <i>objects </i>are in a system?<br /><br />Obviously the star. Here is my list :<br /><ol><li>comets</li><li>asteroid belts</li><li>terrestrial planets (habitable and non-habitable)</li><li>jovian (gas giants)</li><li>minor-planets</li><li>ice planets (frozen water around an asteroid or rock)</li><li>other?</li></ol>cross-post from &lt;&lt;node,1215&gt;&gt;