- #1
Gantar
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- Homework Statement
- Explain how to derive the equation
- Relevant Equations
- I=[N*4*h*c*f^2]/[λ*π*η*t*S*D^2]
So we have a project and we are required to write how to derive the given equation yet we can't find any explenation, only the equation itself.
The equation is basically what we are supposed to use to get radial dependence of light for a given picture of a galaxy when we have values in photons per pixle and want to get W/m^2*steradian
N is the numbr of photons per pixle, h is Plancks constant, c is the speed of light, f is the focal length of the telescope, λ is the wavelength of visible light, η is the quantuum efficiency of the camera, t is time of exposure, S the surface of a pixle, D is diameter of the telescopes mirror.
The equation is basically what we are supposed to use to get radial dependence of light for a given picture of a galaxy when we have values in photons per pixle and want to get W/m^2*steradian
N is the numbr of photons per pixle, h is Plancks constant, c is the speed of light, f is the focal length of the telescope, λ is the wavelength of visible light, η is the quantuum efficiency of the camera, t is time of exposure, S the surface of a pixle, D is diameter of the telescopes mirror.