3/18/2023 0 Comments Main sequence diagram![]() Generalization, Specialization and Aggregation in ER Model.Conceptual Model of the Unified Modeling Language (UML).Unified Modeling Language (UML) | An Introduction.Unified Modeling Language (UML) | Object Diagrams.Unified Modeling Language (UML) | Activity Diagrams.Unified Modeling Language (UML) | State Diagrams. ![]() Unified Modeling Language (UML) | Sequence Diagrams.Unified Modeling Language (UML) | Class Diagrams.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.Full Stack Development with React & Node JS(Live).Preparation Package for Working Professional.Full Stack Development with React & Node JS (Live).Data Structure & Algorithm Classes (Live).Stars like the Sun burn down to cool white dwarfs, which are found in the bottom left of the diagram. Stars of a few solar masses eject their outer layers as planetary nebulae, which have a hot, luminous central star found in the upper left of the diagram. The most massive stars explode in supernovas. The point at which stars move off the main sequence can be used to give the age of star clusters, because stars at the lower end of the main sequence take longer to burn their hydrogen into helium than stars at the upper end. As stars burn up the hydrogen in their cores into helium, they become more luminous and cooler (because they have expanded) and therefore move off the main sequence into the upper right region of the giants and supergiants. The Sun lies near the middle of the main sequence, and stars spend most of their lives on the main sequence. Large, bright, though cool, stars called giants and supergiants appear in the upper right, and the white dwarfs, dim, small, and hot, lie in the lower left. The group called the main sequence extends in a rough diagonal from the upper left of the diagram (hot, bright stars) to the lower right (dim and cool). Stars of the galactic arm in which the Sun is located tend to fall into distinct regions on the diagram. On the diagram stars are ranked from bottom to top in order of decreasing magnitude (increasing brightness) and from right to left by increasing temperature (spectral class). Hertzsprung-Russell diagram of solar neighbourhood SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.
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