M. L. McCall’s scientific contributions

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Publications (1)

Theory of planetary photometry
  • Article

September 1979

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23 Reads

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26 Citations

The Journal of the Royal Astronomical Society of Canada. Royal Astronomical Society of Canada

T. P. Lester

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M. L. McCall

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J. B. Tatum

Modern definitions of photometric quantities and their units are reviewed, including the bidirectional reflectance-distribution function. These ideas are applied to the scattering of light by a spherical planet under the most general reflection laws, and also more restricted cases including Lambertian and Lommel-Seeliger scattering laws and phase laws dependent on phase angle alone. The theory is given in terms of 'physical' concepts such as exitance and irradiance as well as in terms of 'astronomical' concepts such as magnitude and albedo.

Citations (1)

... Taking inspiration from the approach employed in [1], PF i is computed analytically as function of the phase angle α, parametrizing the brdf to the longitude ϕ and latitude θ angles referred to the XYZ frame shown in Figure 1. While in [1] the integral is computed altogether for the full sphere, however, here each discretized surface cap is considered separately to obtain the point cloud. ...

Reference:

A Radiometric Consistent Render Procedure for Planets and Moons
Theory of planetary photometry
  • Citing Article

  • September 1979

The Journal of the Royal Astronomical Society of Canada. Royal Astronomical Society of Canada

T. P. Lester

·

M. L. McCall

·

J. B. Tatum