Power emitted by a star between 500 and 510 nm

[agentsmith1011]

A star has radius R=1.90x10^9 m and surface temperature T=15,200K. How much power does it emit in the range 500 nm < lamda < 510 nm?

 

[OlderDan]

Please read this first.

https://www.physicsforums.com/showthread.php?t=94379

 

[agentsmith1011]

I really really tried my best. So can someone help me now?

 

[OlderDan]

http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/radfrac.html

What is the surface area of the star?

 

[agentsmith1011]

4*pi()*R^2...But I wish it is pi()*R^2

 

[OlderDan]

4*pi()*R^2...But I wish it is pi()*R^2

It is what it is. Can you use the information from the link I posted, or your text, and the surface area of the star to find the answer?

 

[agentsmith1011]

yea, thanks.