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This is what I was thinking. Setting the minimum size to 2000Km diameter, and excluding satellites/mooons, we'd just have had to add one planet, if my reading
by axaxs 6y ago
This is what I was thinking. Setting the minimum size to 2000Km diameter, and excluding satellites/mooons, we'd just have had to add one planet, if my reading is correct.
- chriswarbo 6y agoIt's hard to justify counting Pluto without counting Eris: - Eris is more massive than Pluto (1.6e22kg versus Pluto's 1.3e22kg) - Eris is only slightly smaller than Pluto, at 2326km diameter (more than your arbitrary 2000km cutoff) - The orbit of Eris crosses Pluto's, so it may be closer to the Sun part of the time https://solarstory.net/img/articles/big/orbit-of-eris.jpg https://solarstory.net/img/articles/big/orbit-of-eris.jpg
- axaxs 6y agoAgreed. Eris is the one I was referring to in my comment. Instead of removing Pluto, just add one planet(Eris). On reread that probably wasn't clear, since I still think of Pluto as a planet.