Talk:Conical coordinates

light cone coordinates

I removed the section about "light cone coordinates", which was apparently about a different coordinate system not in common use (as far as I can tell only used in one paper) which is not even called "conical coordinates" directly in that paper. I don't think anyone visiting this page is going to be looking for information about that topic, and my impression was that it may have been added to this page by one of the paper authors (the included figure, which is the same as one of the figures in the paper, is described as the uploader’s own work). If light cone coordinates become a more popular/important topic, they could be added to Wikipedia as their own article, but they are confusing when added to this one. –jacobolus (t) 04:58, 28 July 2021 (UTC)