Talk:Angular diameter distance

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The content of angular size redshift relation was merged into Angular diameter distance. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists. For the discussion at that ___location, see its talk page.

It is requested that a diagram or diagrams be included in this article to improve its quality. Specific illustrations, plots, or diagrams can be requested at the Graphic Lab. Please replace this template with a more specific media request template where possible. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images.

Proposed merge from angular size redshift relation

Latest comment: 17 years ago1 comment1 person in discussion

Done

I'm proposing to merge the article Angular size redshift relation into this one as a separate section, because it's an aspect of the same subject and I think both 'articles' would be improved by being together on the same page. Let me know what you think. Cosmo0 19:02, 20 September 2007 (UTC)Reply

Graph contains incorrect plot

Latest comment: 4 years ago1 comment1 person in discussion

The plot of angular distance in megaparsecs has a correct "reference plot" and incorrect "your plot" which uses H/H0 = (density parameters) instead of H/H0 = (density parameters)^1/2. Speno35 (talk) 06:49, 3 May 2021 (UTC)Reply

Images and/or Diagrams needed

Latest comment: 3 years ago3 comments2 people in discussion

Images and or diagrams of the object at a distance illustrating that formula, and the expanding universe effect would make these concepts much clearer to most of our readers who don't deal well with formulae. — Lentower (talk) 16:42, 21 May 2022 (UTC)Reply

xkcd Graphics of Angular Diameter Turnaround

These xkcd graphics lead me to this article. If someone could get the author to allow use here, it be a large win for this article. As of 21 May 2022^[update], xkcd is much clearer than the text & formulae in this article. — Lentower (talk) 16:59, 21 May 2022 (UTC)Reply

I was going to say xkcd's CC licensed so permission already exists. But the footer (on xkcd's desktop site) says it's licensed under CC-BY-NC 2.5, whereas Wikimedia Commons's licensing page indicates that CC BY-NC isn't accepted. Maybe Wikipedia itself has somewhat looser licensing requirements for images (e.g., "fair use"), but that still has to pass relevance. Personally, I find the heavy layering in the comic too confusing for it to be worth using, but I guess you can try contacting Munroe via social media links in the header or the email address in the licensing page. 66.210.249.135 (talk) 10:42, 26 May 2022 (UTC)Reply