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The term "main sequence" refers to a type of star that is in a specific period of energy creation. Nuclear fusion has begun in the star's core, converting hydrogen into helium.

en.wikipedia.org/wiki/Main_sequence

In astronomy, the main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness. These color-magnitude ...

www.space.com/22437-main-sequence-stars.html

May 5, 2015 ... Main sequence stars are stars that are fusing hydrogen atoms to form helium atoms in their cores. Most of the stars in the universe are main ...

www.atnf.csiro.au/outreach/education/senior/astrophysics/stellarevolution_mainsequence.html

The majority of stars in the galaxy, including our Sun, Sirius and Alpha Centauri A and B are all main sequence stars. The Sun's relative longevity and stability ...

study.com/academy/lesson/main-sequence-star-definition-facts-quiz.html

A main sequence star is a star that is in the longest stage of its life. In this lesson, you will learn the characteristics of this phase, how it...

www.universetoday.com/24643/star-main-sequence

Apr 26, 2016 ... Most of the stars in the Universe are in the main sequence stage of their lives, a point in their stellar evolution where they're converting ...

users.physics.unc.edu/~gcsloan/fun/star.html

Sep 20, 2002 ... Main Sequence Stars, Giants, and Supergiants. First, let's look at how a star with the mass of the Sun might evolve. The four figures below ...

www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html

It will show all the stages that a small star, and a massive star have to go through ... Stage 5 - A star of one solar mass remains in main sequence for about 10 ...

.ask.com/youtube?q=Main+Sequence+Stars&v=2mHN-WY8oTk
Apr 22, 2011 ... A project about the main-sequence star. ... Introductory Astronomy: Main Sequence Stars to Red Giant Stars - Duration: 14:23. P.E. Robinson ...

www.astronomy.ohio-state.edu/~ryden/ast162_4/notes14.html

Jan 27, 2003 ... All main sequence stars (including the Sun) are in hydrostatic equilibrium. That is , the inward force of gravity, which tends to compress the star, ...