Yes, there are.
For details, click on the link in "Sources and related links" below.
"main sequence" is the tern.
Old Glory is commonly used as well.
There are billions of stars that are not on the main sequence.
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.
Not as far apart as stars are from each other, but yes, they are a long way apart.
gas, and other vibrate radiations.
All stars that are converting hydrogen into helium via nuclear fusion are said to be on "main-sequence". See related question for more information
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 , our sun is also a main sequence star
Main sequence stars include the hottest stars as well as the coolest ones.