The star is named
Eta Carinae and it is pegged to have a mass (in its early days) equivalent to that of 150 suns.
NEW ANALYSIS OF THE MASSIVE
Eta Carinae star system supports the idea that the system once had three stars--but only two survived.
That's how fast material from a 170 year old stellar eruption sped away from the unstable, eruptive, and extremely massive star
Eta Carinae.
But here's the truth: if you were looking out of a starship's window in the midst of the
Eta Carinae Nebula, it would look not like its dazzling Hubble panorama but about as it looks in a richest-field telescope under a rural sky.
The brightest star, located in the northern part of the nebula, is the mysterious
eta Carinae, one of the most massive and luminous stellar systems known in the Galaxy.
The most famous example is
Eta Carinae, a star 7,500 light-years from Earth which, for a brief time in the mid-1800s, unleashed into space a shell of gas 10 times the mass of the sun and became the second-brightest star in the night sky.
The Carina Nebula is some 7500 lightyears from Earth and hosts some of the most massive and luminous stars in our Galaxy, including double-star system
eta Carinae, which boasts over 100 times the mass of our Sun.
Papers address high-mass star formation by gravitational collapse of massive cores, the binarity of
Eta Carinae, metallicity-dependent Wolf-Rayet winds, and an overview of cosmic infrared background and Population III, among other topics.
Instead of Alpha Orionis,
Eta Carinae, or Alpha Centauri they say Alpha Orion, Eta Carina, and (presumably) Alpha Centaurus.