Please circle the letter of the best answer. ...       1.   After fusion stops in the core of a brown dwarf star, what direction does it move on the Hertzsprung-Russell  diagram as time elapses?
www.uic.edu/classes/phys/phys112ma/Q3a_s05.htm
They all have approximately the same mass, because this is what defines the main sequence. ... What event occurs at the end of the protostar stage of a star's life? ... When a star leaves the main sequence and expands toward the red giant region, what is happening inside the star?
physics.ship.edu/~mrc/pfs/108/study3/prctc3sp.htm
The glowing cloud of gas is now known as a protostar. The protostar continues to grow. Once it stops growing, it is known as a main sequence star. A main sequence star can shine for millions of years or ... 1) Stars smaller than our Sun. 2) Stars more than 10 times larger than our Sun. 3) Stars the same size as our Sun.
starchild.gsfc.nasa.gov/docs/StarChild/universe_level1/... starchild.gsfc.nasa.gov/docs/StarChild/universe_level1/stars.html
Once its mass is stabilized, the star is known as a main sequence star. The new star will continue to glow for millions or even billions of years. ... It is red because it is cooler than the protostar phase and it is a giant because the outer shell has expanded outward. All stars evolve the same way up to the red giant phase.
starchild.gsfc.nasa.gov/docs/StarChild/universe_level2/... starchild.gsfc.nasa.gov/docs/StarChild/universe_level2/stars.html
Main sequence - Wikipedia, the free encyclopedia
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The main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness. These color-magnitude plots are known as Hertzsprung-Russell diagrams after t...
en.wikipedia.org/wiki/Main_sequence
Remember that a protostar (forming star) is similar to human pregnancy – the star is forming, gaining mass, and it’s not truly "born" yet. Once nuclear fusion begins in a star, the star is born. ... The next "family portrait" may have that exact same star off the main sequence as a red giant (grandparent phase)
aspire.cosmic-ray.org/labs/star_life/hr_interactive.htm... aspire.cosmic-ray.org/labs/star_life/hr_interactive.html
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 slowly contracts over billions of years to compensate for the heat and light energy lost.
aspire.cosmic-ray.org/labs/star_life/starlife_sequence.... aspire.cosmic-ray.org/labs/star_life/starlife_sequence.html
There are actually two main types of star formation - the large and small scale, or simply the formation of many stars at once and the formation of only a few stars. ... What happens during the Main Sequence phase of a stars life? ... You say "H two." That makes it a bit confusing, since it sounds the same as saying H2,
www.uni.edu/morgans/astro/course/Notes/section2/new7.ht... www.uni.edu/morgans/astro/course/Notes/section2/new7.html
A main sequence star begins as a nebula, but after that, there can be two ways that a main sequence star can form. The first way is when the nebula collapses and turns into a Protostar. As the core of ... As this star begins to fade, the production of nuclear fusion from fading hydrogen nuclei will slow, at the same time,
library.thinkquest.org/05aug/00108/mainsequence_framese... library.thinkquest.org/05aug/00108/mainsequence_frameset.htm
; Protostar - the result of the contraction of a nebula. A protostar is the point between a nebula and a main sequence star ... Synchronous Rotation - where the orbital period of a satellite is equal to its rotational period, resulting in the same "face" of the satellite pointing towards the planet...
library.thinkquest.org/28743/glossary.html