Board Thread:Naruto Discussions/@comment-31074250-20170410160032/@comment-26424744-20170411071418

... the extent of her dimensions is known.

Kaguyas parallel time-space's can be confirmed to be atleast the size of a Solar System for these reasons,
 * A sun can be seen in the sky of Kaguyas sand dimension multiple  times.
 * A bright moon can be seen in the sky of Kaguyas ice dimension . Which means that a star must be casting light on the moon.
 * Sun-rays can be seen in one of Kaguyas alternate dimensions.
 * Kaguyas ice dimension can be seen to have a day and night cycle. This indicates the presence of a star.

Pertaining to the Ten Tails "imagine... the very earth and water that compromise this world... flows within every fiber of its being... its life force is that of the planet". Hagoromo said that the revival of the Ten Tails would signify the end of the world. The Ten Tails is the progenitor of all that exists in this world. It is said that the Ten-Tails split open the Earth and drank Oceans.

Second form Ten Tails was shown as a mass of chakra the size of a small planet.