File:Ceres_-_RC3_-_Haulani_Crater_(22381131691).jpg · Wikimedia Commons · See Wikimedia Commons
Also known as dwarf planets
惑星以外で太陽周囲を公転する天体の内、自身の重力で球形の形状を保つことが可能な天体
A dwarf planet is a space object massive enough to be round due to its own gravity, but unlike the eight major planets, it hasn't cleared away other objects from its orbital path. Dwarf planets matter because they help us understand the diversity of objects in our solar system and reveal how planets form and organize themselves.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
- Subclass of
- planetary-mass object
- Image
- 10 Largest Trans-Neptunian objects (TNOS).png
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- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- exact match
- purl.obolibrary.org/obo/ENVO_01000808
- Commons category
- Dwarf planets of the Solar System
- topic's main category
- Category:Dwarf planets
- topic has template
- Template:Dwarf planets
- studied by
- planetary science
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Article · 日本語
準惑星(じゅんわくせい、英: dwarf planet)とは、太陽の周囲を公転する惑星以外の天体のうち、それ自身の重力によって球形になれるだけの質量を有するもの。国際天文学連合(IAU)が2006年8月24日に採択した第26回総会決議5A(以下、決議5Aと略)の中で「惑星」を再定義した際に、同時に定義された太陽系の天体の新分類である。
Abstract from DBpedia / Wikipedia · CC BY-SA
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