This article has multiple issues. Please helpimprove it or discuss these issues on thetalk page.(Learn how and when to remove these messages) This articledoes notcite anysources. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged andremoved. Find sources: "Galileo Galilei Planetarium" – news ·newspapers ·books ·scholar ·JSTOR(July 2021) (Learn how and when to remove this message) You can helpexpand this article with text translated fromthe corresponding article in Spanish. (July 2013)Click [show] for important translation instructions. View a machine-translated version of the Spanish article. Machine translation, likeDeepL orGoogle Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. Youmust providecopyright attribution in theedit summary accompanying your translation by providing aninterlanguage link to the source of your translation. A model attribution edit summary isContent in this edit is translated from the existing Spanish Wikipedia article at [[:es:Planetario Galileo Galilei]]; see its history for attribution. You may also add the template{{Translated|es|Planetario Galileo Galilei}} to thetalk page. For more guidance, seeWikipedia:Translation. (Learn how and when to remove this message)

Galileo Galilei planetarium

Planetario Galileo Galilei
Location within Buenos Aires
Established	December 20, 1966 (1966-12-20)
Location	Palermo Woods,Palermo,Buenos Aires,Argentina
Coordinates	34°34′11″S58°24′42″W / 34.56972°S 58.41167°W /-34.56972; -58.41167
Type	Planetarium
Architect	Enrique Jan
Website	Official Website

TheGalileo Galilei planetarium, commonly known asPlanetario, is located inParque Tres de Febrero in thePalermo district ofBuenos Aires,Argentina.

The idea that Buenos Aires should have aplanetarium began to take shape in 1958 by an agreement betweenSocialist Councilman José Luis Peña and the municipal Secretary of Culture, Dr. Aldo Cocca. Construction began under the direction of architect Enrique Jan in 1962, and it was inaugurated on December 20, 1966. The first function was carried out on June 13, 1967 for the students of "Escuela Comercial Nº 1" ofBanfield and "Santa Unión de los Sagrados Corazones" of Capital Federal. Professor ofgeography andmathematics Antonio Cornejo showed them the sky over Buenos Aires,Argentine Antarctica and theSouth Pole, as well as demonstrating the orientation of thesouthern cross. The facility was officially opened to the public on April 5, 1968.^{[citation needed]}

The planetarium was built in the same exact site from where the Buenos Aires Football Club and the Buenos Aires Cricket Club were evicted in the very late 1940s.^{[citation needed]}

The building has five floors, six staircases and a 20 metres (66 ft) diameter room with 360 seats. The inside of the 20 m semispherical dome is covered with reflectivealuminium.

The planetarium (Zeiss projector Model M V) itself is located in the centre, it has over 100 projectors and is approximately 5 metres (16 ft) in height and 2.5 tons in weight. It consists of a cylindrical framework with independent projectors for the Moon, the Sun and the visible planets (Mercury, Venus, Mars, Jupiter and Saturn) and two spheres in the extremes that project 8,900 stars, constellations and nebulas.

• The museum has a piece oflunar rock which was brought back to Earth by theApollo 11 mission and gifted to the planetarium byRichard Nixon.
• The museum is also home to a collection of 100-million-year-old sea life andamonite fossils fromNeuquén Province.
• A metallic meteorite fromChaco Province is displayed on the entrance terrace.

• 
  View of the Planetarium during the Buenos Aires Pillow Fight
• 
  The Planetarium at dusk
• 
  The Planetarium and the artificial lake in the foreground
• 
  The Planetarium in a cloudy day
• 
  Infrared image of The Planetarium
• 
  The building during the day

Wikimedia Commons has media related to:
Planetario Galileo Galilei (category)

• List of planetariums

34°34′11″S58°24′42″W / 34.56972°S 58.41167°W /-34.56972; -58.41167

• Planetaria in Argentina
• Astronomical observatories in Argentina
• Buildings and structures in Buenos Aires
• Buildings and structures completed in 1966
• Museums in Buenos Aires
• Science museums in Argentina
• Domes

• Pages using gadget WikiMiniAtlas
• Articles with short description
• Short description matches Wikidata
• Articles lacking sources from July 2021
• All articles lacking sources
• Building and structure articles needing translation from Spanish Wikipedia
• Articles with multiple maintenance issues
• All articles with unsourced statements
• Articles with unsourced statements from March 2022
• Coordinates on Wikidata