File:EtaCarinae.jpg

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DescrizioneEtaCarinae.jpg	English: A huge, billowing pair of gas and dust clouds are captured in this stunning NASA Hubble Space Telescope image of the supermassive star Eta Carinae. Eta Carinae was observed by Hubble in September 1995 with the Wide Field and Planetary Camera 2 (WFPC2). Images taken through red and near-ultraviolet filters were subsequently combined to produce the color image shown. A sequence of eight exposures was necessary to cover the object's huge dynamic range: the outer ejecta blobs are 100,000 times fainter than the brilliant central star. Eta Carinae suffered a giant outburst about 160 years ago, when it became one of the brightest stars in the southern sky. Though the star released as much visible light as a supernova explosion, it survived the outburst. The explosion produced two lobes and a large, thin equatorial disk, all moving outward at about 1 million kilometers per hour.
Data	10 giugno 1996
Fonte	File:Eta Carinae.jpg and File:Etacarinae-001.jpg
Autore	Nathan Smith (University of California, Berkeley), and NASA
Altre versioni	Opere derivate da questo file: EvolutionSystèmeSolaire-fragment1.png

Licenza

This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.

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Cronologia del file

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	Data/Ora	Miniatura	Dimensioni	Utente	Commento
attuale	11:41, 18 dic 2017		2 000 × 2 000 (1 MB)	The NMI User	Reverted to version as of 22:36, 24 April 2008 (UTC)
	16:45, 13 mar 2017		3 000 × 3 000 (4,7 MB)	Leogorgon	larger file size
	17:39, 26 giu 2009		2 000 × 2 000 (1 MB)	Henrykus	Reverted to version as of 22:36, 24 April 2008; there is a better version of the image originally taken by Hubble only for "scientific use", http://commons.wikimedia.org/wiki/File:Eta_Carinae.jpg
	11:59, 20 giu 2009		900 × 900 (43 KB)	Tryphon	Reverted to version as of 21:18, 7 June 2007: the other image is an "artistic" edit (combination of two images); the real image from Hubble is more suitable for scientific use.
	00:36, 25 apr 2008		2 000 × 2 000 (1 MB)	Sumanch	==Summary== {{Information \|Description = {{en\|A huge, billowing pair of gas and dust clouds are captured in this stunning NASA Hubble Space Telescope image of the supermassive star Eta Carinae. Eta Carinae was observed by Hubble in September 1995 with the
	23:18, 7 giu 2007		900 × 900 (43 KB)	Tim Starling	Reverted to earlier revision
	01:32, 13 mag 2007	Nessuna miniatura	(114 KB)	Hairy Dude	bigger version from enwiki
	21:22, 21 nov 2006		900 × 900 (43 KB)	Yann	Better quality of the same image.
	00:42, 23 gen 2005		322 × 291 (15 KB)	Robbot	This image was copied from wikipedia:en. The original description was: A huge, billowing pair of gas and dust clouds are captured in this NASA Hubble Space Telescope image of the supermassive star Eta Carinae. Credit: Jon Morse (University of Colorado)