Peeter I

Size of the above preview of this SVG file: 960 × 960 pixels. Other resolutions: 250 × 250 pixels | 500 × 500 pixels | 1,280 × 1,280 pixels | 3,840 × 3,840 pixels.

Original file (SVG file, nominally 550 × 550 pixels, file size: 13 KB)

DescriptionEvolved star fusion shells.svg	This diagram shows a simplified (not to scale) cross-section of a massive, evolved star (with a mass greater than eight times the Sun.) Where the pressure and temperature permit, concentric shells of Hydrogen (H), Helium (He), Carbon (C), Neon/Magnesium (Ne), Oxygen (O) and Silicon (Si) plasma are burning inside the star. The resulting fusion by-products rain down upon the next lower layer, building up the shell below. As a result of Silicon fusion, an inert core of Iron (Fe) plasma is steadily building up at the center. Once this core reaches the Chandrasekhar mass, the iron can no longer sustain its own mass and it undergoes a collapse. This can result in a supernova explosion.
Date	15 August 2007, 11:42 (UTC)
Source	R. J. Hall
Author	User:Rursus
Other versions	Original

I, the copyright holder of this work, hereby publish it under the following licenses:

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.

	This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

	You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
	This licensing tag was added to this file as part of the GFDL licensing update.CC BY-SA 3.0truetrue

This file is licensed under the Creative Commons Attribution 2.5 Generic license.

You are free:

to share – to copy, distribute and transmit the work
to remix – to adapt the work

Under the following conditions:

attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

You may select the license of your choice.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	18:17, 10 May 2020	550 × 550 (13 KB)	Andel	Reverted to version as of 05:14, 13 April 2011 (UTC); Newer version broke rendering
	01:51, 10 May 2020	512 × 512 (7 KB)	TSamuel	Better compression
	05:14, 13 April 2011	550 × 550 (13 KB)	Trex2001	minor fixes
	10:23, 12 April 2011	550 × 550 (13 KB)	Trex2001	color corrections
	11:42, 15 August 2007	550 × 550 (23 KB)	Rursus	{{Information \|Description=This diagram shows a simplified cross-section of a massive, evolved star (with a mass greater than eight times the Sun.) Where the pressure and temperature permit, concentric shells of Hydrogen (H), Helium (He), Carbon (C), Neon