Talk:Galaxy groups and clusters: Difference between revisions

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Revision as of 19:01, 4 January 2012

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Expansion

A list of members for each group and cluster is a good start, but I think it would be more useful to give distances and locations, plus maybe diameters. Anyone have access to that sort of information? My books are all back in Calgary. --Josh Grosse

All this information came from the internet. Article is a work in progress feel free to add information. Very difficult to find complete information for some of these groups. Mathew Carrier

Entropy

I think there is a better place for the entropy calculation somewhere else. It is not done correctly anyway. Oth (talk) 18:12, 3 March 2008 (UTC)[reply]

How does one calculate the number of galaxy groups or clusters? or super-clusters of galaxies? —Preceding unsigned comment added by Quaker phil (talk • contribs) 22:55, 13 October 2009 (UTC)[reply]

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Proposal to merge Galaxy clusters into this page

There's really no need to have multiple pages on groups and clusters, as they differ only in size, and there's no sharp physical change. (Historically, clusters could be detected without redshift information, while groups couldn't, but almost all data today uses redshift information for cluster detection anyway.) It makes more sense to me to have a single article covering groups and clusters of all mass ranges. --Infophile ^{(Talk) (Contribs)} 19:01, 4 January 2012 (UTC)[reply]

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 ''This notification is provided by a Bot'' --[[User:CommonsNotificationBot|CommonsNotificationBot]] ([[User talk:CommonsNotificationBot|talk]]) 15:24, 7 July 2011 (UTC)
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+== Proposal to merge [[Galaxy clusters]] into this page ==
+There's really no need to have multiple pages on groups and clusters, as they differ only in size, and there's no sharp physical change. (Historically, clusters could be detected without redshift information, while groups couldn't, but almost all data today uses redshift information for cluster detection anyway.) It makes more sense to me to have a single article covering groups and clusters of all mass ranges. --[[User:Infophile|Infophile]] <sup>[[User_talk:Infophile|(Talk)]] [[Special:Contributions/Infophile|(Contribs)]]</sup> 19:01, 4 January 2012 (UTC)