The constellations that are in conjunction with the moon are ordinarily known as Ṛkṣas. The spheres of the comparatively smaller stars are five, four, three or two yojanas. Over all these there are clusters of still smaller stars which extend to only half a yojana in width. There is none smaller than this. Over and above these starry spheres are the three planets which move at a great distance from them. They should be known as slow moving ones. The speed of these has already been mentioned in due order.