Template:Did you know nominations/Corona Borealis Supercluster


 * The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as |this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.

The result was: promoted by Allen3 talk 10:38, 15 April 2015 (UTC)

Corona Borealis Supercluster

 * ... that the Corona Borealis Supercluster is anywhere from 6 × 1015 to 12 × 1016 as massive as the Sun?
 * Reviewed: Template:Did you know nominations/If 60's Was 90's

Created by Casliber (talk). Self nominated at 10:25, 13 March 2015 (UTC).


 * , I've made a minor copyedit to remove some ambiguity; feel free to revert if you disagree. StringTheory11 (t • c) 20:25, 13 March 2015 (UTC)
 * that looks fine. Cas Liber (talk · contribs) 23:30, 13 March 2015 (UTC)


 * Symbol question.svg Article creation date versus filing date is okay. Article length squeaks by at 1526 characters.  Neutrality okay, sourcing okay, don't see any copyvio concerns.  Hook length okay at 103 characters.  Hook fact verified in the abstract of the cited paper on arXiv.  Hook interest level is kind of dull – can this be combined with something else?
 * couldn't think of an alternative hook...a total number of galaxies would make a more interesting one if'n I could find it sourced somewhere... Cas Liber (talk ·
 * Maybe ALT1 ... that the Corona Borealis Supercluster is the most prominent supercluster in the Northern Celestial Hemisphere?

contribs) 11:12, 2 April 2015 (UTC)
 * For that matter, how far away from the Sun is this supercluster (near point and far point)? How many total galaxies and/or stars are estimated to be in it?  What is its radius, so to speak – something like the 33 Megaparsecs that is mentioned for one borderline member?  The supercluster is said in the first sentence to be compact, so how does this 'radius' compare with the typical supercluster?
 * can't find anything yet with number of galaxies though it must be in the thousands - got the width and depth in now - will keep ferreting around but heavy going Cas Liber (talk · contribs) 14:09, 2 April 2015 (UTC)
 * Is there an image that shows a map of the supercluster?
 * nothing dramatic turning up so far Cas Liber (talk · contribs) 14:09, 2 April 2015 (UTC)


 * The article has a couple of stylistic inconsistencies in giving masses – the mathematical '×' is used twice and the letter 'x' is used twice, once without a space in front of it. Also megaparsecs should probably be linked, given that the other astronomical terms of measurement are.  Also any measurements in megaparsecs should have light-years in parens after it (looking at another article, there seems to be a 'convert' template parameters for that).   Wasted Time R (talk) 10:35, 2 April 2015 (UTC)
 * fixed the 'x's and linked megaparsecs. dang. megaparsecs don't work in that template.... Cas Liber (talk · contribs) 11:06, 2 April 2015 (UTC)


 * The article on the Abell 2065 cluster has it at more than one billion light-years from the Sun, but I don't know whether that cluster is at the closer or farther 'end' of the supercluster. And is the Sun at right angles to its width or along the same line?  I was thinking about a hook that would relate its width to its distance from the sun.
 * ok lemme see.... Cas Liber (talk · contribs) 06:25, 3 April 2015 (UTC)
 * Also, you've got "light years" unhyphenated and unlinked as the first mention and then hyphenated and linked as the second. Your style is to relink in the article body, so I think it's just the first mention that needs fixing.  Wasted Time R (talk) 00:31, 3 April 2015 (UTC)
 * whoops, fixed now Cas Liber (talk · contribs) 06:25, 3 April 2015 (UTC)
 * Pinging Wasted Time R to see whether review can proceed, or if a new reviewer is needed. Thanks. BlueMoonset (talk) 02:19, 13 April 2015 (UTC)
 * I haven't forgotten about this, but I thought the action was with to follow up on the "ok lemme see...." response above.  The point is to find a more compelling hook for the article and to answer a basic question about the subject.  Wasted Time R (talk) 02:24, 13 April 2015 (UTC)
 * Found some info but got distracted. Will take another look at sources tonight and see what I can do. Cas Liber (talk · contribs) 03:43, 13 April 2015 (UTC)

Ok, I can't find a reliable source for converting redshift to light years. how about: ALT2 ... that five galaxy clusters within the Corona Borealis Supercluster are in the process of collapsing and merging to form a single massive cluster?
 * Symbol confirmed.svg Okay, we'll go with ALT2. I've verified it in page 15 of the Pearson–Batiste–Batuski paper on arXiv.  Wasted Time R (talk) 09:48, 15 April 2015 (UTC)