Maybe Not. Iâve been talking about the death of the total cholesterol paradigm for ten years, and now the research is so strong that itâs time to send flowers. The total cholesterol, with its âgoodâ (HDL) and âbadâ (LDL) cholesterol paradigm, is dead. Taking its place is a new model of vascular biology, epigenomics, and nutragenomicsâhow foods (and supplements) influence heart health.
delta Cephei. The namesake star in the very important class of stars known as Cepheid variables, this star formed part of the original study in which Henrietta Leavitt first discovered that the periods of luminosity were related to their absolute luminosity.This has proved to be an important distance measuring tool.amed after delta-Cephei, Cepheid Variables are the most important type of variable because it has been discovered that their periods of variability are related to their absolute luminosity.
Distinctly reddish, it is a semiregular variable star whose apparent magnitude varies between 0.2 and 1.2, the widest range of any first-magnitude star. Betelgeuse is one of three stars that make up the Winter Triangle, and it marks the center of the Winter Hexagon.The star's name is derived from the Arabic Ø¥Ø¨Ø· Ø§ÙØ¬ÙØ²Ø§Ø¡ Ibt al-JauzÄ' , meaning the ha nd of Orion s an early M-type supergiant, Betelgeuse is one of the largest, most luminous and yet one of the most ethereal stars known. A radius of 5.5 AU is roughly 7003118000000000000â 1180 times the radius of the Sunâable to contain over 2 quadrillion Earths (2.15 Ã 10 15) or more than 1.6 billion (1.65 Ã 10 9) Suns.