Here's why:

* Solar Mass: A solar mass (M☉) is the mass of our Sun, which is about 1.989 × 10^30 kilograms.

* Massive Stars: Stars with masses greater than 8 solar masses are classified as massive stars. They burn through their fuel much faster than smaller stars and have shorter lifespans.

Important note: Stars with a mass of 3.4 solar masses are still relatively rare in the universe. They are more common in the centers of galaxies, where the density of stars is higher.