File:Estrellatipos.png
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Estrellatipos.png (572 × 284 pixels, file size: 87 KB, MIME type: image/png)
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Summary
[edit]DescriptionEstrellatipos.png | Star types. Low-mass stars, less than half a solar mass, are fully convective from core to the surface and thus of uniform composition. This is because their low temperatures make their opacity to photons high. In intermediate-mass stars such as the sun, radiation transport works well enough in the core that convection does not take place; a stagnant core develops, surmounted by a convective region. These stars' surfaces do not include fusion products from the core, but retain the same composition as the cloud from which they formed. At 1.5 solar masses, the convective layer has almost disappeared and the star is essentially fully radiative. Above 1.5 solar masses, the CNO cycle contributes the majority of the energy production. Because this cycle is much more sensitive to temperature, the star's energy production is more tightly concentrated in the center, and this causes the development of a convective core. |
Date | 30 August 2005 (original upload date) |
Source | Transferred from es.wikipedia to Commons. |
Author | The original uploader was Xenoforme at Spanish Wikipedia. |
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Licensing
[edit]Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | ||
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Original upload log
[edit]The original description page was here. All following user names refer to es.wikipedia.
- 2005-08-30 18:05 Xenoforme 572×284×8 (89304 bytes) Creación propia {{GFDL}}
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:02, 12 May 2007 | 572 × 284 (87 KB) | Paintman (talk | contribs) | {{Information |Description=Creación propia |Source=Originally from [http://es.wikipedia.org es.wikipedia]; description page is/was [http://es.wikipedia.org/w/index.php?title=Image%3AEstrellatipos.png here]. |Date=2005-08-30 (original upload date) |Author |
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