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What are different sizes or stars?
dwarf stars,giant stars,main sequence stars
Why are not giant stars in the main sequence on the H-R diagram?
Because there not that hot
Are blue stars more luminous?
Blue stars are more luminous than other main sequence stars but not necessarily brighter than giant and supergiant stars.
How many stars are main sequence stars?
Of the stars you can see from Earth, 90% are in the main sequence.
A star's lifetime depends on what?
It depends on its size. Smaller stars- main-sequence, red giant, planetary nebula, white dwarf, black dwarf Bigger stars- main-squence, red giant, supernova, neutron star.
What are different sizes or stars?
dwarf stars,giant stars,main sequence stars
What is the step after main sequence in a stars life?
After the main sequence, a star becomes a red giant.
Why are not giant stars in the main sequence on the H-R diagram?
Because there not that hot
What element is the main fuel for main sequence stars for red giant?
Main sequence star: hydrogen-1. Red giants: helium-4.
Its Cooler larger and brighter than most main sequence stars?
red giant
How differ the sun and polaris?
The sun is a main sequence star whereas Polaris is a super-giant.
What stars have left the main sequence?
The main sequence stars are stars that fuse hydrogen, so the stars that have left the main sequence are the ones that have basically run out of hydrogen. They are the Red Giant stars, Supergiant stars and White Dwarf stars.
Are big stars cold?
No. All stars are hot. For stars on the main sequence, the largest it is, the hotter it is. When a star leaves the main sequence to become a giant or supergiant it will cool down, but will remain hot enough to glow brightly.
Are red giants main sequence stars?
yes before it dies it becomes a red giant
What are the two stars that are not in the main sequence?
There are billions of stars that are not on the main sequence.
Are blue stars more luminous?
Blue stars are more luminous than other main sequence stars but not necessarily brighter than giant and supergiant stars.
How many stars are main sequence stars?
Of the stars you can see from Earth, 90% are in the main sequence.
