What Are the Key Statistics in the Evolution of Stars Over Billions of Years?

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Discussion Overview

The discussion centers on the statistics and historical evolution of stars over billions of years, with a focus on their size and chemical composition, particularly in relation to different populations of stars (I, II, III). Participants seek data and resources to better understand stellar history and evolution.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant is looking for resources or databases that provide historical data on stars, specifically their sizes and chemical content.
  • Another participant suggests that the concept of "stellar history" is limited due to the relatively short time humans have been observing stars, and proposes that the inquiry may be more about stellar evolution.
  • The Hertzsprung-Russell diagram is mentioned as a relevant tool for understanding stellar classification and evolution.
  • A participant expresses interest in comparing statistics of stars from 10 billion years ago to those from 5 billion years ago, indicating a focus on historical data.
  • There is a clarification on the initial inquiry, with a participant acknowledging the relevance of the Hertzsprung-Russell diagram in their research.

Areas of Agreement / Disagreement

Participants appear to have differing interpretations of the initial question, with some focusing on stellar history and others on stellar evolution. There is no consensus on the specific data being sought or the clarity of the inquiry.

Contextual Notes

Participants have not fully defined what constitutes "stellar history" or the specific types of statistics they are interested in, leading to some ambiguity in the discussion.

nick1o2
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Just been looking around for any good resources or databases which show history of stars in the universe. I have mostly been looking into the size and chemical content of them (like those of population I, II, III). But just looking for some real data and numbers to go with it, like star sizes etc.

Any help is appreciated. Thanks!
 
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Oh you mean "stellar" history ... Stella is like... never mind.
Still not that clear though - we have not been observing stars for very long on the scale that stars have history so we don't actually know any stellar history to speak of. Perhaps you want stellar evolution like how stars grow and die?

Have you seen the Hertzsprung-Russel diagram?

What sort of "real data" are you after? You can find examples of each pop type in star catalogs.
The SAO one is online.
 
Sorry if i was a bit unclear on the wording i used. The Hertzsprung-Russell Diagram seemed very interesting and something I'm looking furthering into now. Thankyou very much!
 
So you did want to know about stellar evolution?
 
In a way yes. but was mostly looking at all the statistics of the stars from 10 billion years ago compared to stars 5 billion years ago. But The Hertzsprung-Russell Diagram helped to separate them in groups and i just searched them individually :)
 

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