河外距离数据库：色星等图
The Extragalactic Distance Database: Color-Magnitude Diagrams
摘要：
星系外距离数据库的CMD/TRGB（色星等图/红巨星分支的尖端）部分包含了哈勃太空望远镜对附近星系的观测汇编。在本体积中大约有250个（并且还在增加）星系有CMD和用于产生它们的恒星测光表，可以通过网络获得。在CMD中可以看到组成星系的各种恒星星族，但我们收集和分析这些星系图像的主要目的是测量每个星系中的TRGB。我们可以用TRGB的恒星作为标准烛光来估计到星系的距离。在本文中，我们描述了构建CMD的过程，并向公众提供的结果。
英文摘要：
The CMDs/TRGB (Color-Magnitude Diagrams/Tip of the Red Giant Branch) section of the Extragalactic Distance Database contains a compilation of observations of nearby galaxies from the Hubble Space Telescope. Approximately 250 (and increasing) galaxies in the Local Volume have CMDs and the stellar photometry tables used to produce them available through the web. Various stellar populations that make up a galaxy are visible in the CMDs, but our primary purpose for collecting and analyzing these galaxy images is to measure the TRGB in each. We can estimate the distance to a galaxy by using stars at the TRGB as standard candles. In this paper we describe the process of constructing the CMDs and make the results available to the public.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
