Recent content by Bipo10

I see now. Thanks a lot for all the help Phyzguy! I'm sure I'll be able to sort things out now!

(I've been getting my data from wikipedia, since its basically the only site I found that had all the values "ready-to-use") Ok so I retried the calculations with bolometric corrections Based on the values from https://www.astro.princeton.edu/~gk/A403/constants.pdf I got for Acrux a correction...

Thanks for all the clarifications! Your explanations have helped me a lot! But I still do have a question... When using the converted σ (I'll call it σSun from now on) I do get the results accurate for Sirius L=4π*(1,7144)^2*σSun*9845^4=24.87Lsun (Super precise!) But when I try Acrux (α1) I...

Let's start then : σ in Solar units is (3.828×10^26)/(695700000^2× 5778^4)= 7.096×10^-7 (I used watts, metres and kelvins for this, since these are the units the normal constant is in...) Now I don't know if that's right because when I try calculating Barnard's star (lets focus on this one for...

Ok, so basically what I'm trying to find is a way for me to calculate luminosity without depending solely on this equation: L = 4πR^2σT^4. What I thought about it at first was to use an equation were I could find luminosity (and after that use the aforementioned equation to get the radius) with...

Thanks for the reply Phyzguy! Ok so using the numbers you provided we have L=4π 695,700000^2σ 5600^4 =3.3914×10^26. According to the IAU, This should've been 3.828×10^26. Close but not quite! When I try it with only Google numbers I get L=4π695,700000^2σ5778^4= 3.843×10^26. I used the sun's...

Hello there. I'm new to this forum and astrophysics in general. I'm also in early high school, so please be patient if I can't grasp the math at first. Anyway, I've been looking for a way to calculate a star's radius without depending on luminosity, and/or a way to calculate luminosity without...