Red supergiant star to individual objects, but it may become useful for analysis of galactic structure and discovery of otherwise obscured red supergiant stars. Surface abundances of red supergiants are dominated by hydrogen even though hydrogen at the core has been completely consumed. In the latest stages of mass loss before a star explodes, surface helium may become enriched to levels comparable with hydrogen. In theoretical extreme mass loss models, sufficient hydrogen may be lost that helium becomes the most abundant element at the surface. When pre-red supergiant stars leave the main sequence, oxygen is more abundant than carbon at the surface, and
Southern Star Central Gas Pipeline FERC code is 43. The company was formed in 1904. In 1926, it was renamed Cities Service Gas Company. It was again renamed in 1982 to the Northwest Central Pipeline Corporation. Five years later it took the name Williams Natural Gas Company. In 1997, it was reorganized and called the Williams Gas Pipeline Central, Inc. In 2003, it was renamed the Southern Star Central Gas Pipeline, Inc. Southern Star's Central Pipeline brings gas from the Rocky Mountains, Texas, and Oklahoma to Kansas. From there it goes east to Missouri. Southern Star Central Gas Pipeline Southern Star Central Gas Pipeline, Inc,