<p>A <a href="https://en.wikipedia.org/wiki/Carbon_planet" rel="nofollow noreferrer">carbon planet</a> is a theoretical type of planet with more carbon than oxygen. How massive can a carbon planet be? Could you have a neptune-like planet except with all the water replaced with hydrocarbons?</p>

CC BY-SA 4.0
2022-01-30T19:42:08.397Z
https://arxiv.org/abs/astro-ph/0504214
Peter Erwin
CC BY-SA 4.0
2022-01-31T12:36:46.617Z
Seems to me that, unless you limit planetary formation to specific sequences,  there's no reason to assume the existence of oxygen in the "dust" which agglomerated to produce the planet.  What is the real question that should be asked here?
Carl Witthoft
<exoplanet>
How massive can a carbon planet be?
sno
# How massive can a carbon planet be?

(Asked by: username_0 on 2022-01-29)

A [carbon planet](https://en.wikipedia.org/wiki/Carbon_planet) is a theoretical type of planet with more carbon than oxygen. How massive can a carbon planet be? Could you have a neptune-like planet except with all the water replaced with hydrocarbons?

**Tags:** exoplanet

> **Comments:**
> **username_1**: https://arxiv.org/abs/astro-ph/0504214  
> **username_2**: Seems to me that, unless you limit planetary formation to specific sequences,  there's no reason to assume the existence of oxygen in the "dust" which agglomerated to produce the planet.  What is the real question that should be asked here?  

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## 0 answers

