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pianeta

File:Planet_collage_to_scale.jpg · Wikimedia Commons · See Wikimedia Commons

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Also known as planetary body, planets

corpo celeste che orbita attorno ad una stella

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

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Described at

Who’s On First | Docs | Placetypes

Who’s on First is a gazetteer of places.

whosonfirst.org

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Article · Italiano

Un pianeta è un corpo celeste che orbita attorno a una stella e che, a differenza di questa, non produce energia tramite fusione nucleare, la cui massa è sufficiente a conferirgli una forma sferoidale, laddove la propria dominanza gravitazionale gli permette di mantenere libera la sua fascia orbitale da altri corpi di dimensioni comparabili o superiori. Questa definizione è entrata ufficialmente nella nomenclatura astronomica il 24 agosto 2006, con la sua promulgazione ufficiale da parte dell'Unione Astronomica Internazionale. In precedenza non esisteva una definizione precisa, ma un'atavica indicazione derivante dall'antica astronomia greca, per cui si considerava pianeta qualunque corpo celeste dotato di massa significativa che si muovesse su orbite fisse.

Abstract from DBpedia / Wikipedia · CC BY-SA

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