No. Only the most massive main sequence stars are blue. Because blue stars are short-lived compared to other stars they are almost invariably young. Less massive stars live much longer, so only a fairly small portion of them are so young. For example a star like our sun can be expected to remain on the main sequence for about 10 billion years, if the rate of formation of such stars is constant then you can expect 1 in every 1,000 such stars to be in their first 10 million years on the main sequence.
The largest main sequence stars are blue.
As the HR diagram shows, the hottest stars on the main sequence range from 30,000K as blue-white stars to about 3,000K as redish stars.
Blue stars are more luminous than other main sequence stars but not necessarily brighter than giant and supergiant stars.
Of the stars you can see from Earth, 90% are in the main sequence.
"main sequence" is the tern.
No. They have the lowest temperatures on the main sequence. The hottest main sequence stars are blue.
The largest main sequence stars are blue.
As the HR diagram shows, the hottest stars on the main sequence range from 30,000K as blue-white stars to about 3,000K as redish stars.
Fairly young ones.
Yes. Amsonia hubrichtii is the scientific name of a blue star. Blue stars are part of the Main Sequence stars.
No stars blue? A star's colour depends on it's temperature. A blue star must be very hot in order for it to glow blue. All stars in the main sequence sre only hot enought to glow yellow, not hot enought to glow blue.
* Blue * White * Yellow * Orange
Blue stars are more luminous than other main sequence stars but not necessarily brighter than giant and supergiant stars.
There are billions of stars that are not on the main sequence.
As the HR diagram shows, the hottest stars on the main sequence range from 30,000K as blue-white stars to about 3,000K as redish stars.
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.