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.
Any star that has stopped fusing hydrogen into helium has left the main sequence.
That happens when a star runs out of hydrogen, and starts fusing helium, converting it into heavier elements.
Yes, all those types of stars have left the main sequence.
The main sequence is a map of star brightness against their temperature. Stars that lie on the main sequence in the top left are the high mass stars. Cooler, smaller stars lie near the line at the lower right.
No, red giants are generally older than main sequence stars, as red giants have no hydrogen left for fuel, and burn helium instead. where as Main Sequence stars burn hydrogen for fuel.
There are billions of stars that are not on the main sequence.
The smallest stars in the main sequence are the stars with cooler surface temperatures.
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 stars , our sun is also a main sequence star
About 90% of the observed stars are on the main sequence. See related question
Main sequence stars include the hottest stars as well as the coolest ones.
main sequence stars , our sun is also a main sequence star