惑星

Also known as planetary body, planets

恒星の周回する天体の一分類

OverviewAI-generated

A planet is a planetary-mass object and substellar object that is part of a planetary system. It is studied by planetary science and has characteristics including mass, orbital elements, radius, and a planetary magnetic field. The concept is described in sources such as the Brockhaus and Efron Encyclopedic Dictionary, The Nuttall Encyclopædia, Encyclopædia Britannica 11th edition, and the Granat Encyclopedic Dictionary.

Planets are distinct from Planeta and Planet. The next lower rank includes natural satellites and minor planets, while the next higher rank is a star. Model items for planets include Mercury, Earth, Mars, and Jupiter. The subject is represented by the Unicode character 🪐 and is categorized under "Planets" on Commons. It is referenced by 2,647 other encyclopedia articles and has a PubMed count of 22468 for the query "planet."

Synthesized by Vinony from 28 facts across 4 sources: Wikidata, Firecrawl, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Research

22,468 papers

Home planet.Lancet (London, England) · 2024Francis GDOI: 10.1016/S0140-6736(24)00201-0
Nurses save the planet.International journal of nursing studies · 2021Norman I, Griffiths PDOI: 10.1016/j.ijnurstu.2021.104061
Overpopulated planet and mental health?The International journal of social psychiatry · 2023Bhugra D, Ventriglio ADOI: 10.1177/00207640231151774
Nourishing people and the planet.BMJ (Clinical research ed.) · 2023de Paula N, Fotiou SDOI: 10.1136/bmj.p126
Can microbes save the planet?Nature biotechnology · 2023DOI: 10.1038/s41587-023-01837-1
One planet, one health, one future: The environmental perspective.Water environment research : a research publication of the Water Environment Federation · 2021Naddeo VDOI: 10.1002/wer.1624
Mapping the planet's critical natural assets.Nature ecology & evolution · 2023Chaplin-Kramer R, Neugarten RA, Sharp RP et al.DOI: 10.1038/s41559-022-01934-5
Imagining a habitable planet through food and health.ReviewEuropean journal of clinical nutrition · 2021Wahlqvist MLDOI: 10.1038/s41430-020-0672-x

via PubMed

Described at

Who’s On First | Docs | Placetypes

Who’s on First is a gazetteer of places.

whosonfirst.org →

Link to a page describing this subject · 13,670 chars · not written by Vinony

Wikidata facts

Subclass of: substellar object
Part of: planetary system
Parent body: star system
Image: Montage of Our Solar System.jpg

Show 16 more facts

Commons category: Planets
topic's main category: Category:Planets
equivalent class: dbpedia.org/ontology/Planet
topic has template: Q22772854
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
has characteristic: clearing the neighbourhood
model item: Saturn
Unicode character: 🪐
described at URL: www.whosonfirst.org/docs/placetypes/#planet
studied by: planetary science
different from: Planet
P8168: Kris Freeman
Stack Exchange tag: physics.stackexchange.com/tags/planets
exact match: purl.obolibrary.org/obo/ENVO_01000800
next lower rank: minor planet
next higher rank: star

Sources (7)

via Wikidata · CC0

Article · 日本語

惑星（わくせい、（希: πλανήτης、羅: planēta、英: planet）とは、恒星の周りを回る天体のうち、比較的低質量のものをいう。正確には、褐色矮星の理論的下限質量（木星質量の十数倍程度）よりも質量の低いものを指す。ただし太陽の周りを回る天体については、これに加えてを満たすものが惑星である。英語「planet（プラネット）」の語源はギリシア語の『プラネテス』（「さまよう者」「放浪者」などの意）。宇宙のスケールから見れば惑星が全体に影響を与える事はほとんど無く、宇宙形成論からすれば考慮の必要はほとんど無い。だが、天体の中では非常に多種多様で複雑なものである。そのため、天文学だけでなく地質学・化学・生物学などの学問分野では重要な対象となっている。

Abstract from DBpedia / Wikipedia · CC BY-SA