By combining 4 hydrogen nuclei into a helium nucleus.
Main Sequence
main sequence
Of the stars you can see from Earth, 90% are in the main sequence.
"main sequence" is the tern.
Most of the stars in the universe are found on the main sequence. Stars fall off the main sequence when they begin to die.
Main Sequence
main sequence
The thing the "main sequence" stars have in common is that they get their energy from the fusion of hydrogen (hydrogen-1 is converted into helium-4).
In the HR-diagram, a diagram of color vs. luminosity, most stars are concentrated close to one curve, called the "main sequence". It turns out that stars on the main sequence are the stars that mainly get their energy by converting hydrogen into helium.
There are billions of stars that are not on the main sequence.
Proton-Proton
Of the stars you can see from Earth, 90% are in the main sequence.
The smallest stars in the main sequence are the stars with cooler surface temperatures.
A protostar generates energy by friction whereas a main sequence star generates energy by fusion.
That's more or less the description of the so-called "main sequence". Those are the stars that get their energy by fusing hydrogen into helium.
"main sequence" is the tern.
Most of the stars in the universe are found on the main sequence. Stars fall off the main sequence when they begin to die.