g - type is a type of star found on the lower end of the main sequence.
which is a type of star found on the lower end of the main sequence?
g - type
na
na
o-type stars represent the highest masses of stars on the main sequence. the coolest of them have initial masses of around 16 times the sun. it is unclear what the upper limit to the mass of an o-type star would be. at solar metallicity levels, stars should not be able to form with masses above 120–150 solar masses, but at lower metallicity this limit is much higher. o-type stars form only a tiny fraction of main-sequence stars and the vast majority of these are towards the lower end of the mass range. the most massive and hottest types o3 and o2 are extremely rare, were only defined in 1971 and 2002 respectively, and only a handful are known in total. giant and supergiant stars are somewhat less massive than the most massive main sequence o-type stars due to mass loss, but are still among the most massive stars known.
o-type star