There has been a lot of discussion as to whether Pluto is a planet or planetoid. It is my opinion that it qualifies as a planet. It has an atmosphere even if it is rather sparse. Just one pont, as there are moons belonging to the gas giants that can be considered to have atmospheres
Mercury is also a diminutive celestial body, no one refers to it as a 'planetoid'
There are eight classical planets. Pluto has now been classified as adwarf planet along with Ceres, Eris, Haumea, and Makemake. A dwarf planet is a minor planet with enough mass to pull itself into a roughly spherical shape. There are also 73 dwarf planet candidates that may be listed as dwarf planets in the future if further observation shows that they fit this definition.
I agree with the IAU's determination of Pluto as a dwarf planet. I don't see it s a demotion, just a more accurate reclassification. Instead of being a strange outlier among the big planets, it is king of a new class of objects that astronomers are only beginning to understand.
by Vimesh Ummer.U5 years ago
In our solar system right now how many planets are there?
by DaniellaWood7 years ago
Is there life on other planets? What do you think?Scientific descoveries suggest that some planets are too hot or too cold for life and that others have no water and so on. But surely humans and animals canNOT be...
by T156 years ago
Should Pluto be considered a planet?
by Brittany Kennedy5 years ago
Why is Pluto no longer a planet if it has moons?Please explain what makes a planet a planet and also describe the moons of Pluto.
by Mighty J-Kep8 years ago
Out in the belt, we find planetoids that are larger than our own Pluto.Thoughts?
by vishalwebduniya6 years ago
Is There any system exist other than solar system in this universe
Copyright © 2018 HubPages Inc. and respective owners.
Other product and company names shown may be trademarks of their respective owners.
HubPages® is a registered Service Mark of HubPages, Inc.
HubPages and Hubbers (authors) may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others.