Star Power Emission: 500nm-510nm

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Homework Help Overview

The discussion centers around calculating the power emitted by a star within a specific wavelength range, focusing on a star with a defined radius and surface temperature.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the formula for the surface area of the star and its relevance to the power emission calculation. Questions arise about the correct application of formulas and the interpretation of provided resources.

Discussion Status

The discussion includes attempts to clarify the surface area calculation and its implications for the power emission. Some participants express uncertainty about the formulas and seek further assistance, while others provide links to external resources for guidance.

Contextual Notes

There are references to external resources that may contain relevant information, and participants express a desire for clarification on specific calculations related to the star's properties.

agentsmith1011
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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?
 
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Please read this first.

https://www.physicsforums.com/showthread.php?t=94379
 
I really really tried my best. So can someone help me now?
 
4*pi()*R^2...But I wish it is pi()*R^2
 
agentsmith1011 said:
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?
 
yea, thanks.
 

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