Kerillis

"Kerillis, one of the brightest stars in the galaxy. Beautiful from afar, but hell from up close. Pity it can't light our night skies for longer."- Naler Vera, head of the Verdan Federation Astronomer's associationKerillis is an O-type star that numbers among the largest stars in the Vernarca Nebula. Luckily, it's still on the main sequence, although it is nearing the end of this phase in its life. It is found within the territory of Marakat, a breakaway republic from the old Tyran Empire prior to the latter's collapse in the aftermath of the Athos Supernova. Found nearby is the yellow hypergiant of Veltoris, and they will pass very close to one another within the next few million years.
== Properties ==
Being an early O-type star, Kerillis is extraordinarily hot. So hot, in fact, that anything near it is destroyed rather quickly. In addition, if placed in the location of Verda, it would reach the orbit of Violis. And that’s when it’s still on the main sequence! It has an impressively strong solar wind, beginning to blow a cavity in the gases of the Vernarca Nebula that surround it and forcing trade routes to divert around it. 
== History ==
Kerillis was formed in the nebula that took its namesake, the Vernarca Nebula, 2.96 million years ago, remarkably in the same ten-thousand-years as Kegåsis. So, it's reasonable to assume its formation was triggered by the Itsquoian supernova.
== Future Evolution ==
In roughly 1 million years, Kerillis will pass through the Hertzsprung Gap over ~1000 years or so before initiating core helium burning. By this time, its mass will have decreased to ~41.6 stellar masses, the remainder being ejected into space by the solar wind. 
200 thousand years later, after this phase of its life, Kerillis will reach the misleadingly named "Naked Helium Burning Main Sequence" phase, in which all of its hydrogen will have burned away. During this phase, the entire star will be burning helium as it is fully convective at this time. By now, its mass will have dipped to 16.25 stellar masses, a far cry from its original size. This will be followed in 400,000 years by the Naked Helium Burning Hypergiant phase, which is similar, except bigger and only 10 stellar masses.
Finally, 1.6 million years from now, Kerillis will go supernova, creating a large nebula and stimulating a whole new generation of star formation before leaving behind a medium-sized stellar mass black hole. 
== Evolution Sim ==
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== Trivia ==
* Kerillis is the second brightest star visible from Teralla.
Category:Stars
Category:Star Systems
Category:Kerillis System
Category:Minmus' Articles
Category:Kerillis Nebula