homework 10

homework 10 - Lee Hoeppner April 26, 2010 Astronomy 100...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Lee Hoeppner April 26, 2010 Astronomy 100 Unit 64 RQ-1. The Sun will spend approximately 10 billion years in its main-sequence phase, consuming the hydrogen in its core. It will then spend about one-tenth as long, about a billion years, as a red giant. It will spend most of this red giant phase just fusing hydrogen into helium in a shell surrounding the core. After this event, the Suns structure will rapidly change from that of a red giant to that of a smaller yellow giant. When the helium in the Suns core is consumed, the core will again be unsupported, as it was at the end of the main sequence. The Suns atmosphere will re-expand to an even greater diameter than it had when it first entered the red giant stage. The Sun will expand so much by the end of this phase that it will be classified as a bright giant with a luminosity about 200 times greater than it has now. By the end of this phase, electron degeneracy pressure will hault the compression, and the Suns core will begin to...
View Full Document

Page1 / 2

homework 10 - Lee Hoeppner April 26, 2010 Astronomy 100...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online