Astronomical Refraction: Computational Method for All Zenith Angles.

Abstract

It is shown that the problem of computing astronomical refraction for any value of the zenith angle may be reduced to a simple, non-singular, numerical quadrature when the proper choice is made for the independent variable of integration. The angle between the radius vector and the light ray is such a choice. The implementation of the quadrature method is discussed in its general form and illustrated by means of an application to a piecewise polytropic atmosphere. The flexibility, simplicity and computational efficiency of the method is evident. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1972
Accession Number
AD0737388

Entities

People

  • E. Myles Standish Jr
  • Lawrence H. Auer

Organizations

  • Yale University

Tags

DTIC Thesaurus Topics

  • Atmospheres
  • Computational Fluid Dynamics
  • Computational Science
  • Efficiency
  • Fluid Dynamics
  • Fluid Mechanics
  • Mathematical Analysis
  • Mechanics
  • Numerical Quadrature
  • Physics
  • Refraction
  • Resilience

Fields of Study

  • Mathematics
  • Physics

Readers

  • Astronomy/Astrophysics
  • Atmospheric Remote Sensing.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)