Definition: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
Input: original question: Which celestial object is in category of [Natural satellite]?
answer: remus, s/2003 j 16, prospero...
answer type: Celestial Object.
auxiliary information: A natural satellite or moon is a celestial body that orbits another body, which is called its primary, and that is not artificial. In the Solar System there are 173 known natural satellites orbiting within 6 planetary satellite systems. In addition, several other planetary-mass objects are known to have satellite systems, including those of the IAU-listed dwarf planets, the moons of Pluto, Haumea and the Eris‚ÄìDysnomia systems. As of January 2012, over 200 minor-planet moons have been discovered. There are 76 known objects in the asteroid belt with satellites, four Jupiter trojans, 39 near-Earth objects, and 14 Mars-crossers. There are also 84 known natural satellites of trans-Neptunian objects. Some 150 additional small bodies have been observed within the rings of Saturn, but only a few were tracked long enough to establish orbits. Planets around other stars are likely to have satellites as well, and although numerous candidates have been detected to date, none have yet been confirmed. Of the inner planets, Mercury and Venus have no natural satellites; Earth has one large natural satellite, known as the Moon; and Mars has two tiny natural satellites, Phobos and Deimos.

Can you name a celestial object that's part of the [Natural satellite] category?