As you can see, all this term I was working in my web side. So I searched a lot of information to provide reliable information.
My results of my X-ray supernova's spectrum shows that the main compound is (according to my calculation) 11.5% of Oxygen VII, 9.5% of Ne IX, 6.1% of Magnesium and 2.8% of Silicium. If we read this article, the principal compound, is Oxygen. But it has Silicium too. So, in my researching I found this core collapse supernova is special because is atypical.
It is a 1c type, but these supernovas doesn't have silicium, although this one yes. So depending the quality of the spectrum we will found or not Silicium.
A scheme of the type of supernovae
Now, passing to my exoplanet's information, EPIC 249893012 c. Through my calculations, I found that with the second form of How to Know the Radius (the brightness formula) I could be able to deduce the radius of it, it gives me 0.37 radius Earth mass. So, according with Hidalgo et al. 2020, EPIC is 3.67 radius Earth mass bigger. It means that my calculations are true, but I did it in base of 10.
