What is the luminosity of Earendel?

[swampwiz]

I just read an article about it, and an internet search & Wikipedia did not have this information. A rough interpretation of the HR diagram for a mass of 75 suns in Main Sequence) says it is about 10⁶ suns.

https://en.wikipedia.org/wiki/WHL0137-LS

 

[Drakkith]

10^6 sounds about right. It is both much larger and much hotter than the Sun, being 50-100 solar masses and more than 20,000 K, between 3-4 times as hot as the Sun. As a comparison, UW Canis Majoris is hotter, at roughly 30,000 K, but is much smaller, with mass estimates placing it, at most, around 40 solar masses. Its luminosity is upwards of 330,000 times greater than the Sun.