1. Horizontal branchThe horizontal branch (HB) is a stage of stellar evolution that immediately follows the red giant branch in stars whose masses are similar to the Sun's. The helium core flash that occurs to stars at the top of the red giant branch causes substantial changes in stellar structure, resulting in an overall reduction in luminosity, some contraction of the stellar envelope, and surfaces reaching higher temperatures.
Read “Horizontal branch” on English Wikipedia
Read “水平分枝” on Japanese Wikipedia
Read “Horizontal branch” on DBpedia
Read “Horizontal branch” on English Wikipedia
Read “水平分枝” on Japanese Wikipedia
Read “Horizontal branch” on DBpedia
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