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Main sequence

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 ...

Main Sequence Stars: Definition & Life Cycle - Space.com

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 ...

Main Sequence Stars - Australia Telescope National Facility

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

Main sequence stars are characterised by the source of their energy. They are all undergoing fusion of hydrogen into helium within their cores. The rate at which ...

Main-Sequence Star: Definition & Facts - Video & Lesson Transcript ...

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...

Lecture 15: The Main Sequence

www.astronomy.ohio-state.edu/~pogge/Ast162/Unit2/mainseq.html

Aug 1, 2006 ... Main Sequence stars are those that "burn" Hydrogen into Helium in their ... The Main Sequence is a Mass Sequence: Lower M-S: M < 1.1 Msun ...

Life on the Main Sequence

csep10.phys.utk.edu/astr162/lect/mainseq/mainseq.html

Temperature (K). 4. Luminosity. Time on Main. (Solar Units). 2. Sequence (million years). 0. 5. 15. 20. Mass / M. -2. Some Properties of Main Sequence Stars ...

WMAP- Life and Death of Stars

map.gsfc.nasa.gov/universe/rel_stars.html

Apr 16, 2010 ... Once the star contracts enough that its central core can burn hydrogen to helium, it becomes a "main sequence" star. Image of "Star Birth" ...

Stellar Life Cycle: Main Sequence Stars

cse.ssl.berkeley.edu/bmendez/ay10/2000/cycle/ms.html

Shortly after hydrostatic equilibrium is achieved the star must ignite hydrogen fusion within its core in order to maintain the balance and resist gravity's grasp.

Main Sequence on the Hertzsprung-Russell Diagram - HyperPhysics

hyperphysics.phy-astr.gsu.edu/hbase/astro/herrus.html

Main Sequence on the Hertzsprung-Russell Diagram. About 90% of the known stars lie on the Main Sequence and have luminosities which approximately ...

Main Sequence Stars - Astronomy - Quatr.us

quatr.us/physics/space/mainsequence.htm

Nine out of ten stars that you see in the sky are main-sequence stars, and our sun is one of them. Most main-sequence stars probably started out as brown ...

Answer
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.
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Stars - Main Sequence - Aspire

aspire.cosmic-ray.org

Stars live out the majority of their lives in a phase termed as the Main Sequence. Once achieving nuclear fusion, stars radiate (shine) energy into space. The star ...

Stellar Evolution: Main Sequence - University of Oregon

abyss.uoregon.edu

Once a protostar starts burning hydrogen in its core, it quickly passes through the T-Tauri stage (in a few million years) and becomes a main sequence star ...

Star Main Sequence - Universe Today

www.universetoday.com

Feb 4, 2009 ... 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 ...