# What is the smallest natural sphere in our solar system?

**URL:** <https://boards.straightdope.com/t/what-is-the-smallest-natural-sphere-in-our-solar-system/671945>\
**Category:** Factual Questions\
**Created:** [October 22, 2013, 4:50pm UTC](https://boards.straightdope.com/t/what-is-the-smallest-natural-sphere-in-our-solar-system/671945 "2013-10-22T16:50:01Z")\
**Posts on this page:** 1\
**Page:** 2

<div class="post-metadata">

**Author:** ![md2000](https://avatars.discourse-cdn.com/v4/letter/m/73ab20/32.png) [@md2000](https://boards.straightdope.com/u/md2000)\
**Post date:** [October 24, 2013, 5:10pm UTC](https://boards.straightdope.com/t/what-is-the-smallest-natural-sphere-in-our-solar-system/671945/21 "2013-10-24T17:10:05Z")

</div>

> [@Lumpy](#):
>
> I think we’re going to have to dump the idea of planets having a discrete number of moons, and simply accept that many planets are surrounded by rubble of all sizes.

_“That’s no moon, it’s a spaceship…”_ -Obi Wan

I would suggest if the rubble is smaller than your spaceship, it does not qualify as a moon…

[Previous page](https://boards.straightdope.com/t/what-is-the-smallest-natural-sphere-in-our-solar-system/671945.md?page=1)